I’d definitely recommend setting a backup alarm just in-case you do sleep through it. But it’s pretty hard to do in my opinion. It vibrates your wrist pretty vigorously.

When I first started wearing my charge hr, my wrist was red and itchy. So I started taking it off when I was actually using it to let my wrist breathe. After like 2 weeks of that, I now wear it at all times except the shower with no issues. I think a lot of it was that I never wore watches. So I had to get used to…