I don't know anything about them. Any suggestions?
I need it for running. It would be nice if it had a timer, clock and maybe water-proof. Help please!!!
I use one from Oregon Scientific and am really happy with it. A lot of them only use age to determine their calculations. I like the one I got because it uses age, height, weight, and activity level.
I'd suggest getting an extra strap or a smaller strap as you need, as they end up getting stretched out, start to slide down, thus causing the HR monitor to not work correctly.....