I read here or on F5X forum there is an app or so that can record both wrist and belt HR data but even after I did a one by one search in the forum I could not find that post. Could someone please help me with this information? I want to check how good is the wrist vs the HRM-Run belt I usually use. I did my first run with wrist HRM and the data was way higher that the HRM (which I wore for the F3 simultaneously)
Many thanks,
meste