[BooneJS]

I’ve used the blood oxygen sensor during bouts with Covid, while sleeping, and while sitting at a computer (“email apnea”). It’s an important part of the reason I own it.

If Apple removes this sensor from my ultra 2, I hope I can get my money back.

[SkyPuncher]

I don't believe they need to remove it from existing devices. Only for net-new sales.

[droidpulkit]

So, if I buy the watch now, I am good?

[jrnichols]

Yes. I have not seen anything that would indicate otherwise. The current ones aren't affected. From 9to5mac:

"This won’t impact existing owners of an Apple Watch with pulse oximetry features."

Also "Update: Apple says Series 9 and Ultra 2 will remain available with the blood oxygen readings for the time being while the US appeals court considers a stay during the ITC appeal period."