Thanks for telling me more about your fitbit charge HR, I am kind of a data hog when it comes to info about these things! If I decide I'm tired of trying to remember to sync my misfit, maybe I'll look into the charge. My only problem with wrist-based trackers is that they don't really work with boxing gloves. One good hit and the device and band cut or bruise my wrist. But at this point I'm not sure I'm going to be going back to hitting hard anyway. It's not really good for the retinas at 53 years old!