3 ms·
There are ones that clip onto a finger and also ones that you can wear while sleeping. I have one of the wearable ring ones (Wellue/O2Ring/Viatom, etc) and am h
by itronitron 7y ago
There are ones that clip onto a finger and also ones that you can wear while sleeping. I have one of the wearable ring ones (Wellue/O2Ring/Viatom, etc) and am happy with it. My oxygen levels are good through the night and my resting heart rate is much lower than I expected it would be.