I do know that there is a heartrate monitor on the Moto 360, for example, though I'm not sure who actually uses it for regular exercise. Are you accumulating a fair amount of wear and tear? Does the size or shape somehow get in the way of your exercises, like bench pressing? I likely won't use my watch like that, but it irritates me to think that I need to buy a different fitness tracker when the watch seems to do that as well.