I started wearing my new forerunner 935 about a week ago, and it's never managed to record nor display my resting heart rate.
It's set to 'auto' and it records when I do activities, but the rest of the time, nothing, it just shows 'measuring', but then no data. I also have no sleep data, which I assume is related. Is this is a known issue and is there a way to fix it? I had a forerunner 230 before and one of the reasons for upgrading was to have a heart rate monitor, I'm really frustrated that it's not working.
