We are not athletes and we were curious to quantify our trips a day. Only small displacement, my work room to my kitchen or my husband of his desk in the office copier to work. We now know that eventually we move a lot and we turn the role carry every other day to see how many calories we eliminate small depending on our feet. Good point for us to mark to make the decision to move a little more or not. It also amuses our son to see how many steps it done in a day of classes. Now my other son may want to test to see the real time of exercise he did in large walk in the forest to the mountain with his dog. Easy to use, compact, fits in a pocket and hop hop hop can give us all full of information about our activities.