shows readings which appear way too low - max rate 130 bpm when real/measured rate is 170 and over night resting heart rate reads 59 bpm which also ”must” be too low (I am 58 years old and not an athlete). Any tips?
shows readings which appear way too low - max rate 130 bpm when real/measured rate is 170 and over night resting heart rate reads 59 bpm which also ”must” be too low (I am 58 years old and not an athlete). Any tips?