@zhang965 said in Regular nighttime oxygen metrics question S 9 Peak Pro:
I do use the finger sensor as well.
My perspective is the optical sensor is NOT SUITABLE for a one moment measurement. (Not for medical usage)
The optical sensor can give you a very accurate value for a period average but NOT ONE GIVEN MOMENT .
So even everytime I trigger the oxygen saturation measurement, it shows a ridiculous value, globally the night max value is correct.
It’s why I do use finger sensor to measure my morning HR to understand if my recovery is done. My watch cannot give me a good value at that moment.
Yes, those are very correct points, nothing can be concluded from the individual measurements, just from the principle of the matter. But if, for example, I attach a small ball to my back that pushes me and forces me to sleep on my side and not on my back all night. And I see that my average night saturation has increased by 3% (relative). Then I realize that sleeping on my back causes snoring for me and vice versa, sleeping on my side free the respiratory tract and voila, the impact on the quality of life is great But unfortunately the maximum value is useless in this case, because I slept for a while both nights on the side when my saturation would be correct. That’s why I think the maximum value can’t be the only correct value
