My sister owns a FR35.
On my newer FR255, my watch calculates my resting HR at night as the lowest average HR achieved over a period of 30 minutes during the night.
Is this the way the FR35 does it too ?
Thank you.
My sister owns a FR35.
On my newer FR255, my watch calculates my resting HR at night as the lowest average HR achieved over a period of 30 minutes during the night.
Is this the way the FR35 does it too ?
Thank you.