...we burn while exercising.? I want to know how many calories I burn during exercise. I have two friends that want to know the same thing. We were going to share a bodybugg. But I don't know if that is possible. I imagine you enter your age,gender,weight,height in there somewhere, but can that be changed for each different user? And if so, do I need the website subscription, or can I adjust those settings manually on the armband/display watch? Is there an alternative to the bodybugg that could accurately count the calories I burn during exercise that multiple people could use? Thanks