I had the previous version of the Fitbit and I didn’t hesitate to buy the new version when it was launched. The first one has all the necessary functions a runner could asked for, it monitors my daily activities such as walking, running and climbing up the stairs. But what I admire most about this new product launch is that it can monitor my heart rate. I can maximize my workouts to fat burning or just simple cardio. Everything they do with their product is just simply amazing and very useful to athletes like me. I really cant be without the Fitbit Charge.