[HN Gopher] Blood oxygen monitoring returning to Apple Watch in ...
       ___________________________________________________________________
        
       Blood oxygen monitoring returning to Apple Watch in the US
        
       Author : thm
       Score  : 310 points
       Date   : 2025-08-14 13:14 UTC (9 hours ago)
        
 (HTM) web link (www.apple.com)
 (TXT) w3m dump (www.apple.com)
        
       | brandonb wrote:
       | Apple was in a patent dispute over this feature with Massimo.
       | Their workaround is to calculate blood oxygen on the iPhone,
       | using the sensors from Apple Watch.
       | 
       | The Apple Watch hardware is otherwise the same. The back of the
       | watch shines light of a specific wavelength into your skin and
       | measures the reflected light. Heart rate sensing uses green (525
       | nm) and infrared (850-940 nm) light; blood oxygen sensing added a
       | red light at 660 nm in 2020.
       | 
       | The iPhone will now calculate the ratio of absorbed red to
       | infrared light, then apply calibration constants from
       | experimental data to estimate blood oxygen saturation.
       | 
       | More detailed writeup on how the technology works is here:
       | https://www.empirical.health/metrics/oxygen/
        
         | BallsInIt wrote:
         | Software patents are a scourge.
        
           | sneak wrote:
           | The whole concept of software patents is a hack; as I
           | understand it algorithms as a rule cannot be patented, so the
           | system running the algorithm is patented instead. This seems
           | to illustrate the absurdity of that workaround.
        
           | 0cf8612b2e1e wrote:
           | I would be a bit more sympathetic if this was not about a
           | trillion dollar company who poached some employees rather
           | than engage in a licensing deal.
        
             | spogbiper wrote:
             | 25 employees including the CTO, and then bought a building
             | nearby to Masimo's office for them to work in. At least
             | according to the CEO of Masimo in public statements.
             | https://www.youtube.com/watch?v=RR1o8EoW-Eg
        
               | thebruce87m wrote:
               | Sounds good for the employees, so go Apple?
        
               | spogbiper wrote:
               | Yes, very good for the employees. Apple even offered them
               | 2x their salaries to leave Masimo.
        
               | FirmwareBurner wrote:
               | Yes "very good", until Apple decides to mass-layoff them,
               | because now, owning the valuable core IP and having
               | killed their primary competitor in the field, Apple can
               | do whatever they want and get away with it because those
               | employees have nowhere else to go in the area. 200+ IQ
               | move </slow_clap>.
               | 
               | How people on HN can support monopolization of markets
               | and killing of competition is beyond me, since in the end
               | it always bites them in the ass (see recent mass layoffs
               | in the industry), yet this lesson seems to be quickly
               | forgotten.
        
               | johnfn wrote:
               | Is there evidence of Apple doing this in the past?
        
               | FuriouslyAdrift wrote:
               | Apple is infamous for driving other companies into
               | bankruptcy to acquire their assets. For a single example,
               | see https://en.wikipedia.org/wiki/Exponential_Technology
        
               | jachee wrote:
               | That's not evidence of Apple doing mass layoffs, though.
        
               | ggreer wrote:
               | How is that an example of Apple driving a company into
               | bankruptcy to acquire their assets? Judging from the
               | Wikipedia article, it looks like Exponential Technologies
               | made a good PowerPC CPU, but Motorola promised they'd be
               | able to catch up, and it's safer to bet on a big company
               | that you've been doing business with than to rely on a
               | startup for a critical component.
               | 
               | Licensed Mac clones were only available for two years
               | (1995-1997), and discontinuing the program drove many
               | other companies out of business, so it's hard to see how
               | the change was a ploy to acquire a single company's
               | assets. It seems more likely that Jobs discontinued
               | licensing because it caused Apple to lose money.
               | 
               | And it looks like much of the Exponential Technologies
               | team continued under a different name, then was bought by
               | Apple in 2010 for $121 million.[1]
               | 
               | If there are other examples, can you provide one that is
               | more recent and/or more blatant?
               | 
               | 1. https://www.nytimes.com/2010/04/28/technology/28apple.
               | html
        
               | FuriouslyAdrift wrote:
               | When they started, they were producing for multiple small
               | customers. Apple was frustrated with Motorola and
               | approached them but demanded they massively increase
               | their production capacity (Apple's model for dominating a
               | supplier... put them in debt and beholden to them for
               | orders) and effectively dominated them as a customer...
               | 
               | Then used them to negotiate a better price with Motorola,
               | dumped their purchase contract for 'reasons' and
               | bankrupted the company.
               | 
               | Exponential sued.. and won $500 million... for breach
               | contract but were destroyed by that point. Apple gobbled
               | up their IP for around $20 mil later on.
        
               | FuriouslyAdrift wrote:
               | Oh... and I forgot this case also exposed that Apple had
               | embedded proprietary IP into the CPU design which made it
               | impossible to seel the already produced CPUs to anyone
               | else (PowerPC chips were in very high demand at the time
               | and these were the fastest on the market).
        
               | ggreer wrote:
               | I can't find any articles about Exponential winning the
               | lawsuit, only that they filed one and sought $500 million
               | in damages. Had they won, I think it would have been in
               | the press. The only thing I could find was Apple's 10K
               | from 1999[1], which says they settled the lawsuit for an
               | undisclosed amount:
               | 
               | > This matter was settled during the fourth quarter of
               | 1999 for an amount not material to the Company's
               | financial position or results of operations.
               | 
               | If Apple did pay $500 million, I think that would have
               | been material to the company's financial position, as
               | their profit that year was $601M.
               | 
               | Again, are there any examples that are less debatable
               | and/or more recent? I don't have a dog in this fight. But
               | if Apple is infamous for this behavior, it seems like
               | there would be stronger examples.
               | 
               | 1. See page 59: https://www.annualreports.com/HostedData/
               | AnnualReportArchive...
        
               | hbn wrote:
               | Let's not forget Masimo picked the fight. Apple was fine
               | letting them compete.
        
               | 0cf8612b2e1e wrote:
               | Pardon? Masimo was first and Apple took their tech (as
               | confirmed by a court). Was Masimo supposed to sit there
               | and shrug?
        
               | FireBeyond wrote:
               | Hah, plenty of people have described Masimo, 400 times
               | smaller than Apple, in the threads on this as "bullying
               | Apple unfairly by being a patent troll."
        
               | Dylan16807 wrote:
               | If they couldn't get a patent on the LED setup, just the
               | software, then yes. They should just shrug and compete.
               | The _idea_ of a piece of software should always be open
               | to competition.
        
               | adrr wrote:
               | First to what? Sensor was invented in 1972.
        
               | eddieroger wrote:
               | Masimo does so much more than consumer-worn heart rate
               | monitors and O2 sensors. They'll be fine as well.
        
               | 0cf8612b2e1e wrote:
               | They will be fine, but maybe they want to be FANG rich.
               | You do not get there if the already big companies play by
               | different rules and can out spend the minute you pose a
               | threat.
        
               | jart wrote:
               | Maybe if Masimo had made Lamego a significant
               | shareholder, he wouldn't have left his "CTO" role to
               | become a mere Apple employee. Masimo is an $8b company.
               | They created a spinoff called Cercacor which Lamego got
               | to be CTO of. My best guess is it wasn't a real startup
               | like we're used to in the Silicon Valley sense. There
               | wasn't any real opportunity for him to gain generational
               | wealth there if he was successful. Apple not only hired
               | him, but thirty other of their employees too, because
               | Apple recognized that their talent was worth more than a
               | licensing deal. That's the issue with these non-valley
               | enterprises. They're very feudal in the sense that the
               | owners treat their engineers and scientists like ordinary
               | workers, expect total loyalty, and pull out their legal
               | guns when they don't get their way. Big tech companies
               | like Apple are more meritocratic and generally offer
               | smart people much better deals. A court later found
               | Lamego hadn't made his moves entirely fairly, but I
               | believe if you look at the big picture, Apple's behavior
               | wasn't predatory, but rather liberatory.
        
               | snapetom wrote:
               | > Big tech companies like Apple are more meritocratic and
               | generally offer smart people much better deals.
               | 
               | It's mindblowing how big of a gap this is for these non-
               | tech companies. I work for a company that sold to PE. The
               | owners walked away with the vast majority of a 1.5
               | billion deal.
               | 
               | I asked if employees were given anything. "Sure. Some got
               | as much as 50k!" I was told.
               | 
               | Using some standard equity math for early engineers, I
               | back of napkined that the 25 year tenure engineers, if
               | they were at big tech, should have gotten low 7 figures.
               | Nope. They got 50k out of 1.5 billion.
               | 
               | (No, PE had no say on how that 1.5 billion was divided up
               | for those of you quick to blame PE.)
        
               | eddieroger wrote:
               | They're already in most of the hospitals in America.
               | There was one attached to my daughter's foot for 100+
               | days. I don't think they care about FAANG at all. They're
               | not a software company. Look them up - this is big
               | companies fighting, not David and Goliath.
        
               | FirmwareBurner wrote:
               | _> Look them up - this is big companies fighting, not
               | David and Goliath._
               | 
               | Massimo is 400x smaller than Apple. WTF are you talking
               | about like they're in the same weight class?
        
               | runako wrote:
               | > maybe they want to be FANG rich
               | 
               | Their (limited) levels.fyi data does not indicate this is
               | one of their goals.
        
               | lotsofpulp wrote:
               | >Apple can do whatever they want and get away with it
               | because those employees have nowhere else to go in the
               | area. 200+ IQ move.
               | 
               | I would bet Apple, and the other large publicly listed
               | tech companies, have lifted far more employees into
               | financial independence from employers than any other
               | business in history.
        
               | themafia wrote:
               | > have lifted far more employees into financial
               | independence
               | 
               | They've also destroyed financial independence. They've
               | engaged in anti-competitive and anti-poaching practices
               | before. There's several famous examples.
               | 
               | Anyways, are you saying it's Apple's goal to lift
               | employees in this way, or does it just happen to be
               | incidental to whatever their CEO wants at the moment?
               | 
               | Also all the people actually _making_ those devices,
               | surely the largest labor pool supporting their business,
               | have zero financial independence. That's the typical
               | western blind spot.
               | 
               | > from employers than any other business in history
               | 
               | I think that'd be the US Government and it's GI Bill.
               | Okay, technically not a business, but if the virtue is
               | independence, then it shouldn't matter who provided it.
        
               | FirmwareBurner wrote:
               | _> I would bet Apple, and the other large publicly listed
               | tech companies, have lifted far more employees into
               | financial independence from employers than any other
               | business in history._
               | 
               | So doing monopolistic and illegal things is OK because it
               | makes some people rich?
        
               | jart wrote:
               | Lamego only stayed at Apple six months. He was very
               | productive. He filed 12 new patents for Apple. But he
               | apparently had disputes with managers. The details aren't
               | entirely clear. But Lamego ended up resigning. After
               | leaving Apple, he founded his own company, True
               | Wearables, which was also successfully sued by Masimo for
               | trade secret theft.
        
               | JumpCrisscross wrote:
               | > _owning the valuable core IP and having killed their
               | primary competitor in the field, Apple can do whatever
               | they want_
               | 
               | Massimo still owns the core IP. Apple owns some other IP.
               | 
               | > _How people on HN can support monopolization of
               | markets_
               | 
               | There was one niche (note: still massive) provider of
               | this technology. Now there are two, one of which is mass.
               | Even if that collapses to one mass, that's objectively
               | better. More competitors and more consumer surplus is not
               | a monopoly condition.
               | 
               | There is a difference between being reflexively anti-
               | Apple regardless of the circumstances and being pro-
               | monopoly.
        
               | mrcwinn wrote:
               | (I couldn't reply down another level.)
               | 
               | >How HN can support monopolization of markets and killing
               | of [sic] competition is beyond me.
               | 
               | That suggests HN is a monoculture of some sort of united
               | front. It is not. Diversity of opinion is best for this
               | community (and all communities).
               | 
               | And, sorry, what competition was killed off here? I, as
               | the consumer, was never considering Massimo for my blood
               | oxygen measurement needs. I bought an Apple Watch and
               | just want it to be as feature-full as possible. So does
               | Apple.
        
               | yifanl wrote:
               | Why were you never considering them for your blood oxygen
               | measurement needs?
        
               | lovich wrote:
               | Not the OP but as someone in the same boat.
               | 
               | I wasn't going to buy a device just for blood monitoring.
               | What they produced is valuable to me as a feature of a
               | product but not as a product in of itself
        
               | yifanl wrote:
               | So we should allow apple to have monopoly power in every
               | industry because otherwise it'd be annoying to buy
               | separate devices.
        
               | jodrellblank wrote:
               | ... who made that claim?
        
               | usefulcat wrote:
               | Where did anyone claim that Apple ought to have a
               | monopoly on blood oxygen measurement in a wearable
               | electronic device, let alone "have monopoly power in
               | every industry"?
        
               | snitty wrote:
               | >monopoly on blood oxygen measurement in a wearable
               | electronic device
               | 
               | And I know this isn't your argument, but that's a VERY
               | narrow market for the purposes of a US inquiry into
               | monopolies. Like, the normal market definition fights are
               | about whether you should be considering "premium
               | smartphones" or "smartphones" as a whole. Or all of the
               | grocery stores in a given region, and whether that should
               | include convenience stores that also sell groceries.
               | 
               | I'd be hard pressed to imagine a court really
               | contemplating an argument that a company has a monopoly
               | in a very small slice of a market. It would be like
               | saying that Rolex has a monopoly in luxury sport watches
               | with headquarters in Geneva.
        
               | odo1242 wrote:
               | Yea, so if Apple didn't copy the other company's work,
               | they'd have been forced to buy devices from or license
               | the other company's work. So instead of your money for
               | the blood oxygen sensor going to that company, it went to
               | Apple.
        
               | skybrian wrote:
               | I bought a cheap pulse oximeter during the pandemic and
               | what I learned is that when I'm feeling light-headed,
               | blood oxygen is low. So I decided that my body's built-in
               | blood oximeter is probably good enough most of the time.
               | 
               | It's sort of like having your watch tell you whether you
               | slept well or not. Didn't you already know? If you think
               | you slept well and your watch disagrees, are you going to
               | trust its opinion over your own?
        
               | nopenopeyup wrote:
               | Because why would I want to destroy the planet by
               | purchasing an additional new watch for each single
               | feature that I wanted to leverage? This seems hugely
               | damaging to the environment just to enrich the lives of <
               | 100 people.
        
               | adrr wrote:
               | Masimo never paid well. $100k to $120k for a senior
               | software engineer. 2x sounds good but probably brought
               | them up to average bay area salaries.
        
               | meindnoch wrote:
               | Yikes. That's like the poverty line in Silicon Valley.
        
               | soperj wrote:
               | lol from the company that colluded with multiple other
               | companies to keep developer salaries down.
        
               | krferriter wrote:
               | Good for everyone except whoever had money invested in
               | Masimo
        
               | scarface_74 wrote:
               | Similar to what HNers are so happy to say about
               | restaurant owners who actually have to be profitable and
               | can't depend on the largess of investors, if Masimo can't
               | afford to pay market rates to developers, the company
               | doesn't deserve to exist.
        
               | blizdiddy wrote:
               | This, but unironically
        
               | geodel wrote:
               | Right. Somehow people here are struggling on how to pin
               | blame on Apple even when developers are better off with
               | Apple's offer. It is a great outcome for anyone who is
               | developer.
               | 
               | If in their world view "best developer salary is not
               | always the best thing" one could have better reasoning
               | for supporting little guy Massimo getting crushed by
               | Apple.
        
               | FireBeyond wrote:
               | So if Apple came to your company, promising licensing,
               | collaboration and other things, when all along their
               | intention was to "take" "your" employees, you'd be cool
               | with that deception?
               | 
               | The employees made out better - good for them. That's a
               | lot easier to do when you have a market cap 400 times
               | higher than that of the company you made all these
               | promises to, and then left holding the bag.
        
               | burnerthrow008 wrote:
               | Sincere question for you: Do you actually believe that
               | your employees _belong_ to you?
        
               | FireBeyond wrote:
               | No. That's why I framed those words. They're not taken,
               | and they're not yours.
               | 
               | I thought I was pretty clear that I felt the outcome for
               | the employees was positive and that Apple's actions were
               | actively deceptive. It was clear in the trial that Apple
               | had zero intention of collaboration, licensing, or patent
               | sharing and just used that as a pretense to "get in the
               | room" and see who showed up on Masimo's side so they knew
               | who to target with competing offers.
        
               | meindnoch wrote:
               | If another company taking some of your employees will
               | affect you company's bottom line, then you better pay
               | those employees _handsomely_.
        
               | scarface_74 wrote:
               | And by "pay" liquid cash or liquid equity in a publicly
               | traded stock - not illiquid "equity" in a private
               | company.
        
               | HDThoreaun wrote:
               | If apple hired them to work on something else, but they
               | hired them to steal tech from their old company.
        
               | raw_anon_1111 wrote:
               | There were no trade secrets involved. It was a patent.
               | Here it is
               | 
               | https://patents.google.com/patent/US10912502B2/
               | 
               | They were hired for their expertise. Do you want to start
               | enforcing non competes in California?
        
               | nkrisc wrote:
               | I think the good is offset by Apple using its other hand
               | to suppress wages for other employees by engaging in "no
               | poaching" practices with other companies.
               | 
               | Probably a net-negative.
        
               | FireBeyond wrote:
               | Great for the employees. But Apple submarined their way
               | in offering partnership, licensing, collaboration, with
               | near zero plans to do any of it.
               | 
               | So good for the employees, but I wouldn't be applauding
               | Apple for their outright deceptions here.
        
               | hsbauauvhabzb wrote:
               | They destroyed the founders company and stole their IP in
               | the process though. Let's not forget there's actual
               | victims in this story.
        
               | adrr wrote:
               | What did they steal? CEO destroyed his own company when
               | he bought a bunch of highend speaker brands. WTF is a
               | medical device company doing buying consumer audio
               | companies?
        
               | hsbauauvhabzb wrote:
               | That's not for you to decide. It somebody is
               | eating/smoking/drinking themselves to death, does that
               | give you the right to murder them?
        
               | StopDisinfo910 wrote:
               | Giving a pass to trillion dollars companies for them to
               | just come next to something they are interested in, poach
               | employees, steal IP and not give a dim to actual
               | innovators sure will be a great incentive towards
               | companies doing more R&D.
        
             | OkayPhysicist wrote:
             | It's really easy to avoid your employees being "poached":
             | treat them well, and pay them better.
        
               | gibolt wrote:
               | I generally agree, but the company likely doesn't have
               | those funds. Considering the largest player (Apple)
               | stands to make way more from it than you and just works
               | around your patent.
               | 
               | Not arguing Apple shouldn't poach, just that your
               | suggestion doesn't work.
        
               | OkayPhysicist wrote:
               | The company made a billion dollars in profit last year. I
               | doubt Apple was willing to pay anywhere near that amount
               | to hire an employee.
        
               | lotsofpulp wrote:
               | They did not earn $1B in profit in the last year. Or 5.
               | 
               | https://companiesmarketcap.com/masimo/earnings/
               | 
               | https://www.macrotrends.net/stocks/charts/MASI/masimo/net
               | -in...
        
               | runako wrote:
               | Check the ratio of SG&A to R&D spend at MASI. They have
               | money, they just choose not to spend it on engineering.
        
               | boringg wrote:
               | Wow you must work for a company with incredibly deep
               | pockets. No way can massimo compete on salary with apple.
               | Only people in the game who can do that are google
               | facebook apple chatgpt etc.
        
               | scarface_74 wrote:
               | And as a hypothetical sought after employee, how is that
               | my problem? If another company wants to roll a shit ton
               | of money up to my doorstep, why shouldn't I take it?
               | 
               | Should I be treating my employer "like family" and care
               | about "the mission"?
        
               | hu3 wrote:
               | It's about the company anti-competitive behaviour. No one
               | said anything about the employees.
        
               | JustExAWS wrote:
               | The company is being "anticompetitive" by offering
               | someone more money? Should we now make that illegal too?
        
               | Dayshine wrote:
               | Well, we've made other situations where companies offer
               | people money illegal. Such as bribery, or paying someone
               | to steal trade secrets.
        
               | JustExAWS wrote:
               | And neither is alleged. It was a patent that we are
               | discussing which by definition isn't a trade secret.
               | 
               | But you are coming awfully close to advocating for non
               | competes which is explicitly not allowed in CA.
        
               | lurk2 wrote:
               | Acquisitions can be considered anticompetitive. The only
               | thing that appears to differentiate this situation from
               | an acquisition is that the investors didn't get paid.
        
               | JustExAWS wrote:
               | Are you suggesting that the FRC should step in when a
               | company offers employment to a large number of employees
               | at another company? How exactly would you propose to put
               | this into law where it doesn't hurt the employees?
        
               | Dylan16807 wrote:
               | How about the fact that both companies are still healthy?
               | 
               | And even if you do look at this like an acquisition,
               | acquisitions are _almost always_ not anticompetitive.
        
               | tshaddox wrote:
               | This is the exact opposite of being anti-competitive.
        
               | arcfour wrote:
               | This is almost farcical. This is literally the opposite
               | of anti-competitive. Please take a basic economics course
               | and pass it before spouting off about economics online.
        
               | do_not_redeem wrote:
               | As an employee you shouldn't care, but if you're someone
               | who wants technological progress to continue, you should
               | care whether companies with a slush fund of billions are
               | able to bully those with less money.
        
               | JustExAWS wrote:
               | You mean like the innovation that someone else here said
               | that was denied a patent in Japan because of prior art?
               | 
               | We like software patents now?
        
               | do_not_redeem wrote:
               | I skimmed this and it doesn't look like a software patent
               | to me. It's a giant long description of the hardware.
               | 
               | https://patents.google.com/patent/US10912502B2/
        
               | lovich wrote:
               | Massimo did not appear to respond to Apple by trying to
               | compete on compensation with them. The levels.fyi data is
               | showing that they appear to pay their engineers between
               | 140-180 while they are making hundreds of millions in
               | profit.
               | 
               | It seems like Masimo wasn't bullied because they had less
               | money. They decided to run to the government to protect
               | them instead of doing actual competition
        
               | runako wrote:
               | Masimo was worth ~$16B when this was going down. They are
               | worth $8B today. This is roughly the size of American
               | Airlines. Masimo is not the biggest company, but they are
               | a large publicly-traded company.
               | 
               | The company does $2B in revenue and spends close to $800
               | million annually in sales, general and admin. This is
               | over 3x their R&D budget. (For reference, Apple's R&D
               | spend is higher than its SG&A spend.)
               | 
               | Per levels.fyi, Masimo is paying senior SDEs in HCOL
               | $150k. They could 10x the comp to these critical
               | employees without it being more than a rounding error in
               | their numbers. (I don't think they would have had to go
               | to 10x. Most people would practically tattoo a brand on
               | themselves for a one-time bonus of $1m.)
               | 
               | Long story short: Masimo does indeed have the money to
               | compete on salary with Apple for this set of employees.
               | They chose to spend the money on attorneys instead.
               | 
               | Some companies don't value engineers. That often works,
               | until they end up in an engineering competition against
               | companies that do value engineers.
        
               | boringg wrote:
               | Im not saying they pay them well or not. Theres just not
               | a comparison on comp they could do. That you don't
               | understand the power dynamics between that is something
               | you will hopefully learn about the world as you become
               | more experienced. Apple would just offer more at the end
               | of the day.
        
               | runako wrote:
               | I understand, and this is timely in the context of Meta
               | making $100m offers. I have no data on this, but I would
               | be highly surprised if Apple offered anybody more than
               | $5m/year. Masimo has that much money.
               | 
               | Could Apple go higher? Sure, but again most people who
               | like their jobs are not going to leave once their needs
               | are met.
               | 
               | From a competitive standpoint: Masimo has lost $8B in
               | market cap during this kerfuffle. It's entirely possible
               | it would have been rational for Masimo to pay these
               | employees higher than Apple possibly would go in order to
               | not lose those billions in value.
        
               | eitally wrote:
               | I disagree with your assertion that Masimo has the money
               | to compete. Apple's upside to employing these folks to
               | build the tech into the Apple Watch is FAR, FAR greater
               | than Masimo's potential sales growth for existing pulse
               | ox devices (or patent licenses). With Apple Watches being
               | licensed as medical devices for ECG & pulse ox, this
               | gives clinicians even more reason to leverage them with
               | patients for convenient 24/7 home monitoring. It's not
               | the same market Masimo is serving, at all.
        
               | runako wrote:
               | I specifically did not address any of the corporate
               | competitive dynamics, although it is worth noting that
               | this is more of an existential issue for Masimo than
               | Apple.
               | 
               | My core point is is that Masimo has far more than enough
               | money to pay strategic employees enough money to keep
               | them. Again, I doubt they would have to go as high as
               | $5m/year for each of the relevant engineers. Masimo could
               | spend that without making a major dent in their finances.
               | 
               | Could Apple up the ante and make offers of $5B/yr to each
               | engineer? Sure, but we are likely talking about the
               | difference between Masimo offering $150k and Apple
               | offering $500k. These are numbers any public company can
               | afford.
        
               | richiebful1 wrote:
               | Masimo sells a health monitoring watch. [1] There is
               | direct competition here.
               | 
               | [1]. https://www.masimo.com/products/monitors/masimo-w1-m
               | edical-w...
        
               | FireBeyond wrote:
               | This product WAS generally marketed to the healthcare
               | field, not to people directly.
               | 
               | It was literally described in the page you referenced:
               | "Arm your patients with continuous measurements in a
               | comfortable, lifestyle-friendly wearable--helping you
               | deliver a true telemonitoring experience."
               | 
               | > automates the collection of clinically accurate
               | measurements to help support: -Post-surgical recovery
               | -Chronic care -Patient management
               | 
               | I say "was" because it was possible to buy it as a
               | consumer, but there's still no direct competition, as:
               | 
               | "Please note that all Masimo consumer products have been
               | discontinued. These include:
               | 
               | MightySat(r) Masimo W1(r) Sport Watch Opioid Halo(tm) /
               | Masimo SafetyNet Alert(tm) Radius Tdeg(r) Continuous
               | Thermometer Masimo Stork(r) Vitals, Masimo Stork Vitals+,
               | and Masimo Stork Baby Monitor"
        
               | OkayPhysicist wrote:
               | As long as a company is turning a profit, they by
               | definition can afford to be paying their employees
               | better. As a company you can _choose_ not to, but it also
               | means you get to suffer the consequences, and lose the
               | right to complain that your employees were  "poached"
               | when in reality it was simply a matter of you not paying
               | them enough to stay.
        
               | adrianN wrote:
               | If you compete with someone who can afford to lose money
               | longer than you, for example because they have some
               | departments with very high margins and can cross-
               | subsidize, you can win.
        
               | Workaccount2 wrote:
               | Profit distribution only makes sense to owners of the
               | company.
               | 
               | A better way to give employees a share of the profits is
               | to give them shares of the company. But then that also
               | comes at the expense of compensation in dollars. You
               | cannot pay for groceries with company shares.
               | 
               | People _really_ like the idea of  "When you win, I get
               | money, when you lose, you lose money". Explained like
               | that they agree it's bad, but explained like "Companies
               | should be distributing profits to workers" they fall over
               | themselves about how good of an idea it is.
               | 
               | Running a business is a gamble and like gambling, you
               | need to put skin in the game to get a share of winnings
               | (and lose your skin in the losses). People are just
               | hyper-focused on the winners.
        
               | wahnfrieden wrote:
               | https://www.federalreserve.gov/releases/z1/dataviz/dfa/di
               | str...
        
               | lovich wrote:
               | This has nothing to do with their point.
               | 
               | If company X is making a profit and losing employees to a
               | competitor paying more, then company X has effectively
               | chosen to let that happen. They don't get to complain
               | that they ate their cake and don't have it anymore.
        
               | Dylan16807 wrote:
               | > People really like the idea of "When you win, I get
               | money, when you lose, you lose money". Explained like
               | that they agree it's bad,
               | 
               | It's not _bad_ , it's a _cost_.
               | 
               | You obviously wouldn't make a deal like that in
               | isolation. You also wouldn't give someone a salary for
               | nothing. But a cost like that can be worth paying just
               | like a salary is worth paying. (Obviously you'd have
               | limits on the numbers, just like salary is limited.)
        
               | Workaccount2 wrote:
               | The salary is the cost.
               | 
               | People think that profits should be distributed on top of
               | salary. And frankly it already happens to a degree with
               | bonuses. But there is this pervasive idea that any
               | leftover profit is just money that should have gone to
               | workers.
        
               | HumblyTossed wrote:
               | There's no way Massimo could have competed in a salary
               | race with Apple. Apple could have paid those employees
               | MILLIONS if they wanted to.
        
               | dmitrygr wrote:
               | Yes, this is capitalism. Apple get 1st rate engineers,
               | Massimo gets 3rd. If they want 2nd, they pay more
        
               | ryandrake wrote:
               | Yea, these employees are not being "poached." They're not
               | zero-agency deer owned by Masimo, grazing on their land,
               | that Apple came in and stole away. They can decide for
               | themselves that someone else is offering a better
               | business arrangement.
               | 
               | There is a market rate for talent, and if you can't
               | afford the market rate, then you don't get the talent.
        
               | missingcolours wrote:
               | I mean, this doesn't tell us whether they can pay them
               | twice as much or $5 more per year. Some companies make no
               | profit, or very little, or very little per employee.
        
               | terminalshort wrote:
               | Not my problem. The owners of a small company have no
               | right to force their financial constraints onto their
               | employees.
        
               | hu3 wrote:
               | that doesn't work when Apple can pay them multiples "more
               | well".
               | 
               | the sensible thing would be to license the tech
        
               | soperj wrote:
               | Or just collude with your rival companies ala Steve Jobs.
        
               | 7thpower wrote:
               | - is what Tim Cook told himself to vanquish the last bit
               | of uneasiness. Then he took of his glasses, set them on
               | the night stand, and slept better than he had in years.
        
               | geodel wrote:
               | Absolutely. Similarly, I tell parents who keep whining
               | about soaring education costs and employability: Educate
               | them well, and get them high paying jobs.
        
             | scarface_74 wrote:
             | I hate the word "poaching". A company offered employees
             | more money in exchange for their labor.
             | 
             | I see no issue. Would you have preferred what happened in
             | the Jobs era where 7 of the largest tech firms colluded not
             | to hire from each other's company?
        
               | Teever wrote:
               | Apple is able to do what they do now because of the shit
               | they got away with in the Jobs era.
               | 
               | Because they hobbled competitors and innovation then
               | they're able to do it now.
               | 
               | It's really hard to determine how detrimental their
               | actions have been to the job market for software
               | engineers.
               | 
               | It is entirely possible that every software engineer is
               | worse off because Apple severely distorted the market and
               | prevented many competitors from growing to be competitors
               | to Apple and what ever offer Apple made to these people
               | pales to what they could be making if Jobs hadn't done
               | what he did.
        
               | JustExAWS wrote:
               | You mean they hobbled poor little competitors like
               | Google, Adobe, and the other tech companies that agreed
               | to it? Apple was actually one of the smaller companies at
               | the time.
               | 
               | How is all Apple's fault? And are you really saying that
               | the iPhone wouldn't have happened if Apple hadn't gotten
               | into these agreements?
               | 
               | In your alternate universe would Nokia or Rim (who wasn't
               | involved in the agreement) still been relevant?
        
               | Teever wrote:
               | No, they hobbled the competitors that their staff could
               | have formed if they had made more money to do so.
               | 
               | That collusion between these big companies to deny their
               | employees a wage driven by free markets allowed those
               | companies to accrue wealth and prevent competition from
               | forming.
               | 
               | That's terrible for their employees, that's terrible for
               | the consumer.
        
               | scarface_74 wrote:
               | How did their collusion stop a new company from offering
               | more money than the depressed wages that the collusion
               | was causing?
               | 
               | Alternatively, if hypothetically without the collusion do
               | you think the upper wage pressure would I have materially
               | affected those companies bottom lines to not create the
               | products that made them profitable?
        
               | Teever wrote:
               | The hypothetical new companies that I'm talking about
               | would have been formed by their former employees who
               | could afford to do so with the increased money that they
               | would have made if it hadn't been for the criminal
               | collusion to deny them that capital and us as a society a
               | freer market.
               | 
               | And you're right, there's a distinct possibility the
               | savings that they made in breaking the law could have
               | affected their bottom line at the time in a way that
               | prevented them from making certain products, but it could
               | have also fostered creativity and innovation in the
               | companies that colluded, and increased competition
               | between them and the new companies that would have formed
               | in a way that would have benefited innovation.
               | 
               | What's important is that companies don't break the law
               | and that people are paid as much as they're worth so that
               | they can in turn stimulate the economy in ways that they
               | see fit.
        
               | scarface_74 wrote:
               | So let me get this straight, if there wages would have
               | been 30% more hypothetically they could have invested
               | their own money (which few startup founders do) built
               | phones or search engines that competed with Apple and
               | Google? Something well funded companies like Microsoft
               | and Facebook couldn't do?
               | 
               | But now are you also saying that Apple did the right
               | thing when they paid Masimo's employees more so now they
               | can stimulate the economy and in the future start
               | companies?
        
               | Teever wrote:
               | A charitable interpretation of what I have wrote is that
               | if Apple had followed the law then they would have more
               | competition and the market would be a healthier place
               | that benefits software developers and consumers alike.
               | 
               | Apple broke the law because they felt that it was in
               | their best interest to the detriment of others and they
               | will likely continue to do so if they feel it is in their
               | best interest.
        
               | scarface_74 wrote:
               | Why focus just on Apple instead of the other companies -
               | Adobe, Google, Intel, Intuit, Pixar, Lucasfilm and eBay?
               | 
               | But since when have people making BigTech money been
               | afraid to venture out on their own to found a startup and
               | would 30% more (completely made up number) and that was
               | probably tied up in RSUs and not cash really made a
               | difference?
               | 
               | Shouldn't the idea that these people were making less
               | than market wages spur them to go to other companies
               | besides those seven or venture off on their own?
        
               | alistairSH wrote:
               | Two things can be bad at once.
               | 
               | Apple has a massive war chest they can leverage to crush
               | competition in several ways. As a nation and as
               | consumers, we should at least be wary of what they're
               | doing and whether it stifles competition or innovation.
               | Even if the actions are legal.
               | 
               | There's a difference between Apple paying more for
               | engineers in general vs Apple specifically targeting a
               | competitor, acquiring all the talent from that
               | competitor, then using the IP that talent brought to roll
               | out substantially the same product.
        
               | scarface_74 wrote:
               | There was no IP to poach. The IP was in a publicly
               | available patent.
               | 
               | Every company that proactively reaches out to an employed
               | individual is doing so because that employee has
               | demonstrated elsewhere and probably at their current job
               | skills and experience that they find valuable and I
               | assume is willing to make a better offer for them.
               | 
               | Other posters said that Masimo was paying developers
               | $140K - $180k. That's a nothingburger for good
               | developers. The BigTech company I was working for two
               | years ago was offering returning interns about that much
               | in cash + liquid RSUs
               | 
               | I once worked for a startup where everyone loved the CTO,
               | the startup got acquired after I left by a PE company.
               | 
               | When he left to be the CTO of another company in the same
               | vertical, 10 of the employees followed him within the
               | next six months basically taking all of the developers
               | and sales that he wanted and all of the worthwhile staff
               | from the startup. I assume it was for more money.
               | 
               | If I had still been at the startup when he left, he would
               | have easily "poached" me too?
               | 
               | Should that also have been illegal? Was that unethical?
        
             | 0x457 wrote:
             | I don't how can you patent "read sensor, and process
             | readings on device" I get if how it's actual sensor was
             | patented, not "read and compute"
        
               | nradov wrote:
               | Have you read the patent?
        
               | burnerthrow008 wrote:
               | My reading of the claims is that the novelty is having
               | the processor integrated in the sensor protrusion. So
               | processing the data elsewhere (particularly on a
               | different device) would avoid infringement.
        
             | QuinnyPig wrote:
             | And then let their product lose the feature for multiple
             | years rather than settling for some amount of money that
             | was absolutely trivial to them.
        
             | MangoToupe wrote:
             | > I would be a bit more sympathetic if this was not about a
             | trillion dollar company who poached some employees rather
             | than engage in a licensing deal.
             | 
             | Obviously the people who suffer are customers. There isn't
             | a single instance where IP helps them.
        
             | adrr wrote:
             | Why would they license something that was invented 50+
             | years ago? No one else pays a license for it. Not even
             | valid patent as the company couldn't prove it court it was
             | a valid patent and the case ended up being hung jury with
             | all but one jury that held out. Only reason they couldn't
             | import it because
             | 
             | Travesty is the ITC is allowed to block imports without
             | going to court. Banning imports shouldn't be done by some
             | government institution and should be handled by the court
             | system.
        
             | terminalshort wrote:
             | Poaching employees is a good thing and should always be
             | allowed. Companies have the means to prevent this at any
             | time. It's called contract employment. But if they insist
             | on being able to fire me at any time, they can eat the
             | downside of that too.
        
             | burnerthrow008 wrote:
             | Wow. So you view corporate employees like serfs bound to
             | the land, not allowed to seek better opportunities for
             | themselves? That's kind of... dark.
        
           | anonu wrote:
           | I dont think the patent in question is for software:
           | https://patents.google.com/patent/US10912502B2/en
        
           | Disposal8433 wrote:
           | Every workaround I've seen for the past 30 years feel like a
           | "Shabbat elevator"
           | (https://en.wikipedia.org/wiki/Shabbat_elevator) I'm not
           | using the elevator because I'm not pushing the button because
           | it's always moving.
           | 
           | Edit: I've always hated patents too, don't get me wrong.
        
           | johndhi wrote:
           | Isn't this hardware though? :-)
        
           | cmiles74 wrote:
           | IMHO, the problem is that if you are wealthy enough then you
           | don't need to worry about patents. I also think these patents
           | are, on the whole, not great. But here the one company
           | legally got the patent and the another, richer company hired
           | away their talent and paid them to find a workaround to avoid
           | licensing. Smaller companies will continue to license the
           | patent.
           | 
           | Few tears will be shed for Massimo (or Qualcomm) but the next
           | victim could be a much smaller company, maybe one that would
           | be more of a competitor. I don't like the current patent
           | regime but I do believe enforcement should apply to everyone,
           | not just players who lack the money to rig the game.
        
         | Angostura wrote:
         | > The iPhone will now calculate the ratio of absorbed red to
         | infrared light, then apply calibration constants from
         | experimental data to estimate blood oxygen saturation.
         | 
         | Sorry, maybe I missed it - but source for this?
        
           | chedabob wrote:
           | It's in the Apple PR
           | https://www.apple.com/newsroom/2025/08/an-update-on-blood-
           | ox...
           | 
           | > sensor data from the Blood Oxygen app on Apple Watch will
           | be measured and calculated on the paired iPhone
        
           | clint wrote:
           | The literal article that is the sole focus of this entire
           | thread?
        
         | unglaublich wrote:
         | Crazy that this is a 'patent'. We did this experiment in high
         | school 30 years ago.
        
           | spogbiper wrote:
           | almost as crazy as a patent for a rectangle with rounded
           | corners
        
             | mbirth wrote:
             | You mean a Squircle(r)
        
               | raldi wrote:
               | Apple calls them roundrects:
               | https://www.folklore.org/Round_Rects_Are_Everywhere.html
        
               | Zee2 wrote:
               | Technically, a quintic superellipse, in modern times.
        
             | robertoandred wrote:
             | That's of course not what the patent was about.
        
             | shagie wrote:
             | You can also patent the shape of a bottle.
             | https://patents.google.com/patent/USD48160S/en (yes, its an
             | old one).
             | 
             | These fall into the classification of design patent which
             | covers ornamental non-functional elements of a particular
             | item. https://en.wikipedia.org/wiki/Design_patent
             | 
             | Design patents also cover typefaces. https://en.wikipedia.o
             | rg/wiki/Intellectual_property_protecti... -- note that
             | typefaces _cannot_ be copyrighted in the United States
             | 
             | Design patents differ from a utility patent which covers
             | how something works.
        
             | Dylan16807 wrote:
             | Design patents are a form of trademark with a silly name,
             | not real patents.
        
           | rootsudo wrote:
           | I've just been amazed how many things could be a patent and
           | why I haven't spent time to learn.
        
         | BugsJustFindMe wrote:
         | Phenomenal that the patent is only violated by doing it with
         | the watch cpu but not by funneling the data to a separate cpu.
         | The surest sign that it's a bullshit patent.
        
           | kube-system wrote:
           | They're all like that. Patents are pretty specific.
        
             | abirch wrote:
             | If they're not very specific there's frequently prior art.
        
         | alooPotato wrote:
         | I wonder if they could take it one step further. Do the
         | measurements on the watch, do the calculation on the iPhone,
         | send the results back to the watch for display. Technically all
         | the work is done on the iPhone and the watch is just the IO
         | device.
        
       | CalChris wrote:
       | Massimo invented this technology (yay Massimo!) in the 90s yet
       | their Japanese patents [1] weren't considered prior art (WTF?)
       | because of technical legal reasons.
       | 
       | [1] https://patents.google.com/patent/JP2002542493A5/en%EF%BF%BC
       | 
       | So I suppose if Massimo is going to use a technical legality to
       | extend then Apple can use a technical legality to avoid.
        
         | 7thpower wrote:
         | That is interesting, had not understood this previously.
        
         | parsimo2010 wrote:
         | Masimo only _refined_ pulse oximetry in the 90s, as pulse
         | oximetry was invented in the 1970s (prior oximeters did not
         | resemble the devices seen today). Everything after that has
         | been tweaks /improvements to the base method, but I wouldn't
         | call them the inventors of the technology.
         | 
         | The only IP that companies can own now are specific
         | methods/improvements, not the base idea of measuring SpO2 with
         | light. All Apple has to do is avoid the specific improvements
         | that Masimo owns and they are fine.
         | 
         | https://en.wikipedia.org/wiki/Pulse_oximetry#History
        
           | bookofjoe wrote:
           | Yes. I recall the brand new pulse oximeters (I don't recall
           | the manufacturer) that appeared in the ORs at UCLA Medical
           | Center right around when I started my anesthesiology
           | residency in 1977. They were SUPER expensive when they first
           | came out, so much so that our department bought 3 of them,
           | which were used only for the most critical cases. I remember
           | the chief resident sometimes had to decide who got one when 2
           | residents/attendings each said their patient was more
           | unstable/critical and thus needed it more.
           | 
           | These were NOT small devices like the inexpensive fingertip
           | versions you can buy now over the counter; rather, they were
           | big boxlike machines, perhaps 2 feet x 1.5 feet x 8 inches
           | high. They were SO heavy (I'd estimate 25 pounds) they were
           | attached to a stainless steel rolling cart.
        
       | mandeepj wrote:
       | Hopefully blood glucose monitoring will come soon as well
        
         | SJMG wrote:
         | I'm out of the loop, can this be done without drawing blood
         | now?
        
           | borski wrote:
           | You can do it by using interstitial fluid, which is how CGMs
           | work.
           | 
           | But, in short, no, not yet: https://www.fda.gov/medical-
           | devices/safety-communications/do...
        
             | SJMG wrote:
             | Gotcha, thanks for the clarification and answer.
        
             | NoMoreNicksLeft wrote:
             | They're all on a subscription model, you're spending who-
             | knows-how-much per year on a new sensor every few
             | days/weeks. Afraid it'd feel like a prickleburr stuck to me
             | constantly.
        
               | coolspot wrote:
               | It does feel like that for some people (like myself). But
               | it was fun and informative to wear it once for 10 days.
        
               | rstupek wrote:
               | When I used one I didn't notice it was there except when
               | I inadvertently brushed it against something.
        
               | ShakataGaNai wrote:
               | I'm the ADD type that runs into shit, or at least I clip
               | corners regularly when going through doorways.
               | Normally... I don't even notice. Ripped two CGM's out in
               | the first month. Shit HURTS.
        
               | bookofjoe wrote:
               | Tried both of the popular ones: didn't notice either one
               | ever.
        
               | duskwuff wrote:
               | > They're all on a subscription model, you're spending
               | who-knows-how-much per year on a new sensor every few
               | days/weeks.
               | 
               | Which - to be clear - is because the sensor chemically
               | degrades over time. It's not just rent-seeking; they
               | genuinely don't know how to make one that'll last longer.
        
           | mandeepj wrote:
           | It's been going on for a while - Non-invasive monitoring.
           | Here's a general link
           | https://www.google.com/search?q=blood+glucose+patent+startup
           | 
           | I believe a firm in Uk holds a patent for it and Apple has
           | partnered with them a while ago.
           | 
           | https://www.zdnet.com/article/apple-takes-key-step-
           | towards-b...
        
             | SJMG wrote:
             | Very neat! If they can crack this, I might actually bite
             | and finally buy one.
        
             | crazygringo wrote:
             | To be clear, the _research_ has been going on for a while.
             | 
             | But extracting an accurate enough signal from noise through
             | the skin is an incredibly complex signal analysis problem.
             | And there are multiple approaches.
             | 
             | Nothing has FDA approval yet because it's a major question
             | whether any technology developed thus far is accurate
             | enough. I understand there's at least one clinical trial
             | going on right now. Fingers crossed...
        
         | GuinansEyebrows wrote:
         | i'm not a smartwatch fan for the most part but i'd get one for
         | CGM use if it meant no more knocking my sensors off walking
         | through doors (because i'm apparently incapable of walking
         | without moving like a wacky inflatable tube man) or nasty
         | adhesive residue stuck on my arms.
        
       | dmart wrote:
       | Just offloading the analysis to the phone is extremely funny. It
       | also seems like a pretty obvious solution, so I wonder if it was
       | delayed by legal analysis and they only just decided it was
       | likely to hold up in court.
        
         | rafram wrote:
         | Apple says:
         | 
         | > This update was enabled by a recent U.S. Customs ruling.
         | 
         | I can't find the ruling in question, though, so I'm not sure
         | what they mean.
        
           | anonu wrote:
           | https://rulings.cbp.gov/ruling/H335304
        
             | irons wrote:
             | This is the January 2024 ruling allowing Apple to resume
             | imports of Apple Watches to the US with the blood oxygen
             | feature disabled. Hopefully the recent ruling will show up
             | on this site at some point.
        
       | DwnVoteHoneyPot wrote:
       | I live in a rural area. My old fashioned doctor said to test
       | oxygen levels, all you need to do is pinch your index finger nail
       | down until it goes white. Then when you let go, if it goes back
       | to pink right away, you're good. If it takes more than a few
       | seconds, you're not good.
        
         | qgin wrote:
         | That's the capillary refill test which tests circulation and
         | perfusion. Doesn't really tell you anything about oxygen
         | levels.
        
         | monkeyelite wrote:
         | Of course. Billions of people have lived without this. You also
         | don't need a computer on your wrist.
         | 
         | But many people are willing to pay get more health information,
         | especially wealthier demographics who have interest in health
         | and appearances of health.
        
       | comrade1234 wrote:
       | I have it on my garmin and it seems pretty useless. My oxygen
       | level while I sleep has more to do with how tightly I'm wearing
       | it that night than anything else. It also drain the battery fast
       | so I just disabled it.
       | 
       | I have a real finger-based one bought during COVID that I trust
       | more.
        
       | neild wrote:
       | In my experience, the Apple Watch blood oxygen monitoring was
       | horribly inaccurate. It would report wildly variable results,
       | often telling me that I had a blood oxygen level of 80% (which,
       | if true, would indicate that I should be getting myself to an
       | emergency room ASAP).
       | 
       | Regular pulse oxygen meters are cheap and reliable.
        
         | throwaway303293 wrote:
         | In contrast my Garmin and finger pulseox match exactly.
        
           | exabrial wrote:
           | Yep, my Garmin also has matched the doctors office instrument
           | to the 1% every time.
        
             | iamdanieljohns wrote:
             | Which model do you have?
        
           | mauvehaus wrote:
           | I don't know what Garmin you have, but I'm about half
           | convinced that my Instinct's heart rate measurement is
           | implemented by a PRNG. It's frequently off by 50% from a
           | count/time cross-check.
           | 
           | It does not inspire me to move up their range when this watch
           | eventually dies: if they can't get the basic feature working,
           | I have a hard time seeing how they're going to manage
           | anything trickier.
        
             | iamacyborg wrote:
             | Heart rate measurement on my Garmin (fenix 7 pro range) is
             | great, the pulse ox measurements are shit though, and
             | absolutely rinse the battery life.
        
             | llm_nerd wrote:
             | https://www.youtube.com/@TheQuantifiedScientist
             | 
             | That guy is a great reference, and through his videos you
             | can find various measures where he compares devices against
             | reference devices (e.g. the Polar H10 for heart rate for
             | instance). A lot of the reliability of these devices relies
             | upon a tight fit as well.
        
             | alternatex wrote:
             | Accuracy varies wildly with each model. Obviously the more
             | expensive ($400+) ones are better, but Garmin devices are
             | generally good with heart rate tracking. Same for Apple
             | watch, Pixel watch, and a few cheaper options from Huawei
             | and Xiaomi.
        
             | jeltz wrote:
             | Heartrate is generally very good but only as long as the
             | fit is tight. Blood oxygen on the other hand is a joke.
        
         | llm_nerd wrote:
         | Indeed, just generally this is a silly feature that was used to
         | sell updated devices, but has almost no value to end users.
         | There is shockingly little diagnostic value of the reading
         | unless you are in such a critical state that you likely want
         | something better than an incredibly unreliable and inaccurate
         | smartwatch feature cram.
         | 
         | For anyone remotely healthy, 100% of the time your real value
         | will be between 95% and 99%, and there is almost no diagnostic
         | value to it. Heart rate is actually interesting and is
         | something you can learn from and work towards. SpO2 is just
         | "eh...neat".
        
           | 361994752 wrote:
           | as some one whose family passed away due to pneumonia, spo2
           | is a life saving feature if we had that back then. probably
           | 99.9% of the time spo2 number is good enough. but the value
           | is really about the left 0.1% . of course the false positive
           | rate should be low enough.
        
           | toast0 wrote:
           | > For anyone remotely healthy, 100% of the time your real
           | value will be between 95% and 99%, and there is almost no
           | diagnostic value to it.
           | 
           | Sure, but if the value is less than 95, that does have
           | diagnostic value (if it's accurate)
        
             | llm_nerd wrote:
             | Sure, but unlike heart conditions where people often have
             | no idea (about afib, or even abnormally high or low heart
             | rates), people generally know when they have respiratory
             | difficulties. Like the other comment noted something about
             | family having pneumonia, and I cannot understand how the
             | watch would have made their situation better. If someone in
             | that state wasn't already seeking medical advice, it's
             | hugely unlikely a watch saying "yo it's bad bro" is going
             | to help.
             | 
             | It's like heralding a G-sensor in your watch telling you
             | that you're falling. It's likely pretty obvious already.
        
               | toast0 wrote:
               | Seems to me, it has some value (again, if it's accurate)
               | for letting people know about sleep apnea; especially as
               | part of an overall sleep tracking dodad.
               | 
               | I've got enough mild asthma around me that we have a
               | finger pulseox (or two cause we "lost" one and found it
               | later) and I've started yelling at sick people to check
               | it once in a while. Cause they don't usually think to,
               | but sometimes it lingers and by the time they decide to
               | go into an office, the numbers are pretty low.
               | 
               | Of course, we're not on the Apple bandwagon and stopped
               | wearing watches once we got used to having pocket watches
               | again.
        
         | jeffbee wrote:
         | Wouldn't you already be super dead with a true reading of 80?
         | Or at least unable to cognitively interpret the reading?
        
           | skadamou wrote:
           | That's definitely a danger zone for healthy people but
           | interestingly enough people with things like COPD may have a
           | blood oxygen level in the 80s and while that is indicative of
           | the disease, they may be totally stable and may not even need
           | oxygen [1].
           | 
           | [1] https://www.drugs.com/medical-answers/normal-oxygen-
           | level-so...
        
             | tialaramex wrote:
             | My grandmother's heart was completely fucked, so they'd
             | have to adjust the alarms on the hospital monitors after
             | checking their files when she went in. It's like "OK, well
             | that's the problem... consults notes... Nope, apparently
             | that is normal for her, now lets figure out what's actually
             | wrong". It wasn't keeping regular time and it would
             | sometimes skip, but apparently it was pumping well enough
             | to keep her alive for several years.
             | 
             | Normal in humans is _definitely_ relative and medicine has
             | tended to assume that if we average 1000 humans (in too
             | many cases, 1000 white college age men) that 's what human
             | normal is, which is crazy even beyond obvious problems like
             | " people normally have 1.999 legs apparently".
        
             | nucleardog wrote:
             | Bodies are generally pretty amazing in that sense. As long
             | as things go out of spec _slowly_, we will often adapt
             | quite well. In the short term, we will tend to balance even
             | fairly extreme changes out through various chemical
             | processes and in the long term people can even develop
             | heritable genetic changes. (E.g., how people acclimatize
             | and have in some cases adapted to living at higher
             | altitudes[0])
             | 
             | [0]: https://en.wikipedia.org/wiki/Effects_of_high_altitude
             | _on_hu...
        
           | op00to wrote:
           | I had some momentary readings lower than 80 during a sleep
           | study prior to going on CPAP. I didn't snore, or choke, or
           | anything. Just ... didn't breathe. With CPAP, 98% all the
           | time.
        
         | ayhanfuat wrote:
         | That caused me nightmares when I was first diagnosed with sleep
         | apnea. I would check my oxygen levels during the sleep to see
         | if my treatment is effective. Even though the CPAP machine
         | would show a few short events Apple Watch would show levels as
         | low as 75%. Thankfully in my next sleep study I learned that my
         | oxygen levels were consistently above 95% and the watch is
         | indeed very unreliable (how snug it is, which direction it is
         | facing etc highly affect the results).
        
           | okrad wrote:
           | I've always felt the sport loops (soft w/ velcro) provide the
           | best contact with wrist while not being too cumbersome. Very
           | easy to tighten just before a workout or loosen before bed.
           | All the while it stays planted on my wrist. Unlock the
           | rubbery band it normally comes with, which is prone to
           | sliding around and less easy to adjust.
           | 
           | Out of curiosity, which band do you use?
        
         | brandonb wrote:
         | The FDA standard for blood oxygen sensing is within 6%
         | absolute, 95% of the time.
         | 
         | So variability in the sensing is pretty normal, and you want to
         | look at long-term trends rather than individual measurements.
        
           | rafaelmn wrote:
           | The problem with consumer health sensors is they have both
           | high random error and inconsistent systematic error. When
           | your SPO2 sensor gives you 92% one minute and 98% the next
           | while you're sitting still and it is almost always 2% under,
           | you're not getting "noisy but usable" data - you're getting
           | garbage.
        
         | conradev wrote:
         | On their best days, they're accurate to within 2-4%. But so
         | many things can trip up the reading, like melanin:
         | As a result, for darker-skinned patients, oxygen saturation
         | readings can read as normal when they are, in fact, dangerously
         | low.
         | 
         | https://publichealth.jhu.edu/2024/pulse-oximeters-racial-bia...
         | 
         | When everyone starting looking at every percentage point of
         | their SpO2 during COVID as if it were life or death, the FDA
         | had to remind people of this:
         | 
         | https://www.fda.gov/news-events/fda-brief/fda-brief-fda-warn...
         | 
         | You would be unable to read an accurate pulse oximeter at 80%
         | because you would have lost consciousness. Doctors have to
         | worry about false negatives just as much as false positives
         | with those things.
        
         | js2 wrote:
         | I've never had any trouble with it on my series 9 (purchased
         | Dec 2023 just before the feature was disabled). It's always
         | closely matched the fingertip meter that I have. Which is to
         | say they both always read >= 95% for the most part.
        
       | sargun wrote:
       | What's the US Customs ruling in question? > This update was
       | enabled by a recent U.S. Customs ruling.
        
         | ezfe wrote:
         | That this is okay?
        
         | anonu wrote:
         | https://rulings.cbp.gov/ruling/H335304 maybe this - from
         | January 2025
         | 
         | It appears the patent is for "User-Worn Device for
         | Noninvasively Measuring a Physiological Parameter of a User".
         | So Apple is simply moving the logic to a non user-worn device -
         | like a phone - to get around the problem. (this is my quick
         | read / conjecture)
         | 
         | Here is the original patent
         | https://patents.google.com/patent/US10912502B2/en
        
           | freehorse wrote:
           | Yeah, prob because one cannot patent an algorithm itself, but
           | only a specific implementation. The patent was about a
           | wearable device so i guess the workaround was to do the
           | computations in a non-wearable device.
        
       | andrewmcwatters wrote:
       | You can buy a fingertip pulse oximeter for like $10. I understand
       | the benefits of having all of these biometric readers directly on
       | your personal device, but the perceived stress over getting this
       | back into the watch seems... I don't know, not wise? In poor
       | taste? Something, but I can't articulate it well.
       | 
       | I mean, we don't have IR blasters on any of our personal devices
       | anymore, and arguably it would be nice to be able to control my
       | TV with my phone like I could with my Palm Pilot forever ago, but
       | that's not in vogue anymore.
        
         | rblatz wrote:
         | iPhone can control Apple TVs, and is able to detect which
         | device you are nearest to and auto select it (if you have
         | multiple)
         | 
         | Also all my TVs also have apps that function as a remote
         | control.
         | 
         | Interestingly enough my main TV an LG has a remote that
         | controls the tv using RF. I don't even know if it would work
         | with an IR blaster.
        
           | bookofjoe wrote:
           | Apple Watch can also control Apple TVs.
        
         | radicaldreamer wrote:
         | The point of this is that for people who would never get a
         | pulse oximeter getting this "for free" and automatically
         | enabled on their Apple Watches and realizing they have a
         | medical issue well before symptoms become severe or
         | catastrophic.
        
       | delduca wrote:
       | To be honest, I didn't like these metrics. They're very different
       | from what I get on an oximeter. The first time I saw them, I
       | thought I was short of breath, but it was just the metric being
       | used.
        
       | kylehotchkiss wrote:
       | I never really understood why protecting Massimo in this
       | situation was more important than allowing customers to access a
       | feature in their watch. I get patent law is important, but they
       | seemed more interested in rent-seeking from Apple than actually
       | providing a desirable product that people could benefit from.
        
         | appease7727 wrote:
         | That's precisely what patents are for in the modern era
        
         | bigyabai wrote:
         | Because Apple consciously violated the patent? When you think
         | about it, Apple is lucky the judge didn't demand a hardware
         | recall. They got off pretty easy, and if Apple wanted to be
         | petty, then they could enable the hardware as an API only, and
         | let users do the rest.
         | 
         | Here in America this is part of our culture: your health
         | gimmeck features are precisely meaningless to the court if the
         | prosecution can prove wreckless harm on Apple's behalf.
        
         | ahmeneeroe-v2 wrote:
         | "Rent seeking" is original intent of patents, correct? The
         | theory being that this incentivizes invention.
        
         | crazygringo wrote:
         | Patents are literally for rent-seeking.
         | 
         | They are explicitly not to maximize the number of people who
         | can benefit from a product in the short term, but precisely to
         | limit it so the inventor can make more money.
         | 
         | The idea being that in the long run the inventions it
         | incentivizes outweigh the people who are limited from
         | benefiting in the short term.
         | 
         | Judges aren't in the position to weigh societal benefits in
         | each individual patent case. Your framing implies that cost-
         | benefit tradeoff. But that's not how it works. The only
         | question is whether a product infringes or not.
        
         | adrr wrote:
         | Wasn't patent law since decision wasn't decide in court. ITC
         | banned it from imports. I don't understand how a government
         | entity can wield so much power to block sales of product
         | without using the court system. This should have been
         | litigated.
        
       | alistairSH wrote:
       | Did the Watch Series 9+ incorporate a new sensor or different
       | algorithm? I have an older model that has always had blood oxygen
       | (and it was never disabled, as it was for the 9+).
        
         | jerlam wrote:
         | Apple only disabled the pulse ox sensor on watches they sold,
         | distributed, or replaced after the ruling. I don't think Apple
         | disabled a working pulse ox sensor on anyone's watch other than
         | repairs.
        
           | ShakataGaNai wrote:
           | And only in the USA, as far as I understood. You could but
           | the same watch in Canada and the pulseox worked.
        
           | bookofjoe wrote:
           | Don't get me started about my Kindle books....
        
       | ck2 wrote:
       | blood oxygen from the wrist is absolutely garbage-in
        
       | Havoc wrote:
       | Been holding off buying a watch till glucose monitoring hits.
       | 
       | Much like fusion that is continuously imminent though
        
         | ShakataGaNai wrote:
         | That would be amazing, but it seems like that tech is still a
         | ways off. At least to have any sort of useful accuracy. The
         | wrist "temp" is a great example of "interesting but useless".
        
         | bookofjoe wrote:
         | Rumors have it that some form of BP monitoring will appear in
         | next month's updated watches.
        
       | bilsbie wrote:
       | I wish they could monitor blood insulin.
        
       | bilsbie wrote:
       | Can you do anything interesting with knowing blood oxygen?
        
       | hinkley wrote:
       | Which will be absolutely useless for anyone serious and even
       | plebs like me since who runs with a 250-500g phone strapped into
       | spandex?
       | 
       | I use a watch and wireless headphones. The iphone stays at home.
        
       | bookofjoe wrote:
       | Let's be clear: the return of this function requires an iPhone;
       | the original version did not.
        
       | cogogo wrote:
       | I have the first Ultra and just looked back at the data and they
       | were never interrupted. It isn't included in the release either.
       | Wonder what is different about it. Did apple arrive at a separate
       | agreement for that device?
        
       ___________________________________________________________________
       (page generated 2025-08-14 23:00 UTC)