Have any of you had any experience with the Nike Triax v10 (that's the watch that comes with a pod that attaches to your shoe and measures pace and distance) as well as the Polar version of the watch (I'm not sure what the model is called)? I have the Nike watch now and I really like it, but it is getting pretty beat up. I was going to get a new one but Nike doesn't make them any more. So I'm wondering how the Polar compares to the Nike. Thanks for your help.