okay, so I'm looking for something similar to a fit bit that I can use for roller derby. Here's the thing though, I can't wear anything on my wrist because I am wearing wrist guards. A chest strap wou…
I'm trying to find a good heart rate monitor to track calories burned, specially during practice. I was wondering if anybody here use nike+ as a way to do this. I know it's made for running so I'm not…
