Do any of you swim with a HRM/calorie counter watch? I have one that works fine for working out although I hate it (Nike Imara) and I use my Garmin when I run outdoors, but I need one that will work in a pool/in the water. I took my Nike Imara in the pool and although it says it's waterproof to 50M, it got a little warped.
Which one do you have/recommend? Do the ones without chest straps really give you an accurate reading, you think?