I'm currenlty the owner of a fitbit charge HR. I like it very much but it has a few drawbacks and I'm trying to decide whether I would be better off with the MS band or sticking with the Fitbit. Pluses for Fitbit charge HR: Cross platform app works yes there is an app for my windows phone 4-5 day battery life even with HR monitor switched on all the time Fairly accurate HR readings for a wrist monitor worn on the outside of the wrist. Customisable display (can choose which order to view things). Quite good at sleep tracking Reasonably comfortable strap (with proviso below) Minuses for Fitbit Charge HR: No notifications received from phone (doesn't work with Windows phoen but apparently does with iOS and android) Display small so I tend to wear this as well as a watch as I can't easily see the display to tell the time (but then I guess a larger and always-on display would cut down battery life). Not waterproof so hard to clean properly and my skin gets irritated by trapped dirt in the little areas I can't get to to clean. I'm quite interested in the MS band 2, it looks a lot better design wise than the old version that looked like an uncomfortable handcuff. I like the idea of the screen showing more info but the battery life seems a lot lower and I'm useless at even charging my fitbit every 5 days. however I wanted to know some owners thoughts. Has anyone had both of these devices and can compare the two?