[bhartzer]

I'm wearing a Series 9 right now. What are the chances that they have to 'turn off' or 'disable' the pulse oximetry function?

I haven't heard that mentioned--or if it was I missed it.

[ramraj07]

The real question is if you’ll miss that feature. It’s one of the most useless things they added to the watch just because they had nothing else they could. This and the wash your hands reminder lol.

[kridsdale3]

I paid for it and I use it. It informs the VO2MAX graph in my database. That is very important to me.