Watch Sp02 detection is usually at rather long intervals to conserve battery and typically have not resulted in any sort of detection of low 02 (in my experienc

Watch Sp02 detection is usually at rather long intervals to conserve battery and typically have not resulted in any sort of detection of low 02 (in my experience, I have very bad sleep apnea)compared to a pretty dependable and accurate $30 on the finger oximeter.