AppleInsider
Apple removed blood oxygen monitoring from the Apple Watch in early 2024. Somebody has to blink for it to return, and it looks like neither Masimo nor Apple are going to budge.
https://appleinsider.com/articles/25/08/01/blood-oxygen-sensing-shows-no-sign-of-returning-to-apple-watch-any-time-soon?utm_medium=social&utm_source=threads
Blood oxygen sensing shows no sign of returning to Apple Watch any time soon

Apple removed blood oxygen monitoring from the Apple Watch in early 2024. Somebody has to blink for it to return, and it looks like neither Masimo nor Apple are going to budge.

AppleInsider
Aug 1, 2025 at 6:51pmWeb
Show threadAndreas LanjerudAug 3, 2025
@appleinsider Writers and publications need to realize their audience is world wide. Most none US citizens have no idea what this is about. And the other way around: most of us don’t have Apple News or trailers and other fun stuff.