Advanced Apple Watch health monitoring features are hitting some roadblocks
The long-rumored blood pressure monitoring and sleep apnea features of the Apple Watch probably aren't going to arrive in Apple Watch Series 10, or Apple Watch Ultra 3.

A render of the rear sensor of the Apple Watch Series 10
Rumors over the years have claimed that Apple is bringing blood pressure monitoring to the Apple Watch, possibly doing so by the Apple Watch Series 10. There has also been speculation that sleep apnea functions would also be added.
Unfortunately, Apple may have encountered too many issues to actually introduce the features in its 2024 generations.
Apple's work on measuring instances of high blood pressure, known as hypertension, hasn't been reliable enough for the company, Bloomberg said on Sunday. Sources add that there were concerns about the function working correctly under the new design of Apple Watch Series 10.
Furthermore, while there are expectations of full blood pressure readings, Apple's system won't offer that. Instead, it is apparently only going to monitor if the user's blood pressure is high compared to an established baseline, and even then only alert the user.
Sleep Apnea
The sleep apnea function is being affected by an entirely non-technical problem. Apple's lawsuit with Masimo Corp over blood oxygen saturation detection technology means Apple can't measure that vital statistic.
For sleep apnea to exist on the Apple Watch, either Apple has to find a way to successfully end the lawsuit, or work around it entirely.
It is plausible that Apple could include the technology in the Apple Watch Series 10 but keep it disabled at launch. That would give Apple the opportunity to activate it at a later time, following the lawsuit and if its allowed to continue using the technology.
Comments
2) How exactly does Apple paying a company for invalid patents for O2 monitoring somehow invent noninvasive glucose monitoring or engineer sleep apnea monitoring via a wristworn device?
3) With that kind of logic you could be a lawyer for Masimo.
If this was easy Samsung would have thrown together some half-assed version by now.
But I'm not looking. But I understand where @Gregoriusm is coming from.