I'm contemplating pulling the trigger for an Apple Watch to replace the trackers I've accumulated over time. Being alerted to notifications is pretty important to me, and I'm tired of either feeling the notification but only for some things, or getting alerted for everything but never feeling the notification. I know the Activity App tracks your calorie burn during the day. I also know the Apple Watch is not a "sleep tracker" and I'm not that interested in that. What I would like to know is does the watch assume your calorie burn is your BMR for the time the watch is not on your wrist (sleeping/charging)? If I put my watch on the charger at midnight and go to sleep, wake up and put it on my wrist at 7 AM, and my BMR is 100 cal/hr, at 7 AM will the activity app show 700 calories burned or 0 calories burned? Thanks.