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I just hope Apple doesn't see this work around as an "upsell" to have future AW's somehow calculate blood oxygen locally on the watch itself.

He's way ahead of you...

Up$ell mode engaged!

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Great for all the users in the US. Think sales of new models will increase over the next few months. Surprised that it is not returning to Series 8
 
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However if you have an older Apple watch (say Series 6) AND you had the battery replaced, the PO2 feature was disabled when they returned the watch to you - and it would appear that we are not getting the blood oxygen sensor reenabled with this watcOS update
Looks like you gotta upgrade 💰
 
However if you have an older Apple watch (say Series 6) AND you had the battery replaced, the PO2 feature was disabled when they returned the watch to you - and it would appear that we are not getting the blood oxygen sensor reenabled with this watcOS update
I would guess they do, and that it's enough of an edge case that they didn't bother mentioning that in the press release. I guess we'll find out soon.
 
However if you have an older Apple watch (say Series 6) AND you had the battery replaced, the PO2 feature was disabled when they returned the watch to you - and it would appear that we are not getting the blood oxygen sensor reenabled with this watcOS update
I may be wrong but, I don't believe a working sensor would be disabled after a battery replacement.
 
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Older models that were sold with Blood Oxygen sensing, like the Series 8, had to have it disabled when replaced by AppleCare. Is this update going to also be available for those models, or is this purely S9 and above? I don’t care that much, but kind of annoying if my S8 replaced by AC doesn’t get blood oxygen sensing re-enabled too.
 
However if you have an older Apple watch (say Series 6) AND you had the battery replaced, the PO2 feature was disabled when they returned the watch to you - and it would appear that we are not getting the blood oxygen sensor reenabled with this watcOS update
I may be wrong but, I don't believe a working sensor would be disabled after a battery replacement.

Oh, I heard that too! Unless, of course, the Apple Watch Series 6 or later had that feature before the January 2024 ban and had AppleCare coverage beforehand (and replaced in a different country than the USA)

But if this update lets the sensor work again, sending data from the sensor to the iPhone, then those watches that were replaced and used to have SPO2 before the US ban would act like the update would on the Apple Watches that didn’t have them since they were set up.

That’s just a guess, though, because the update won’t be here until later today, so we’ll have to wait and see what happens!
 
Processing on the phone… Almost certainly how they’re getting around it. Likely the trademark will have been about measuring and processing on device. So bring in a second device and maybe it’s no longer infringing? Just a thought
I’m no patent expert but seems ridiculous that “processing it on device” can be trademarked— it must be the way it’s being processed on the device bypassed. If injunctions are that easy, we should have had them against all Samsung and Android devices back in the 2010s :)
 
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Does anyone know if it's actually accurate? My mom had breathing issues and has blood oxygen of around 82% according to professional equipment, however I have measured it with an Apple Watch and it said it was around 94-96%...
I’ve found it to be somewhat consistent with a fingertip pulse oximeter within about 2% or so.
I got an older Series 7 model for the blood oxygen feature. It was kind of fun to play with. I could hold my breath to lower my blood oxygen or breath heavily to get it to 100. But then I’ve never used it since playing with it. It’s not a sensor that gets activated automatically like the heart rate sensor; you have to manually activate it like the EKG.
How do you get it to 100? I’ve never gotten it that high on my Apple Watch, and my fingertip pulse ox literally says it only reads to 99%.
Great for all the users in the US. Think sales of new models will increase over the next few months. Surprised that it is not returning to Series 8
It never left… The injunction started with series 9.
 
Ok, this is great and all, but kind of silly that with this change you have to view the results within the health app on your phone instead of right on the watch
 
Maybe this is shallow but this has genuinely improved the outlook of my day. I'm glad my watch has it's full functionality again.
 
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