Comment by genewitch

I have an amazfit bip 2 or 3 and iirc I can enable spo2 monitoring "constantly" I don't because mine is always 99 so I shut it off and just test manually.

It tracks movement and breathing during sleep. I think it now tracks snoring too, wakeups, rem/deep sleep times, and steps, heart rate, and stress levels.

The app is called zepp and I don't know if any of this is exportable but I only care about a cheap watch that has heartrate on it.