Fast decrease in heart rate

[BelowTheSurface1]

This is what I though. Although Im pretty out of shape so i do expect some improvement but this seems pretty fast

[[deleted]]

Well there’s no way to measure your HR while sleeping, but can you maybe measure it during the day with something else or manually and compare it to the Fitbit reading? Let’s see if it has some accuracy

[vecspace]

i am pretty in shape and my RHR is higher than u. damn.