I'm curious in what situations you were using the pulse oximeter. From what I've seen the performance of even the best watches is questionable in the normal ran

I'm curious in what situations you were using the pulse oximeter. From what I've seen the performance of even the best watches is questionable in the normal range - one example: https://www.youtube.com/watch?v=8HIcwMhEny0 https://www.youtube.com/watch?v=8HIcwMhEny0