I'm looking forward to getting my SG Sport, whenever that may be... I've really enjoyed wearing my Charge HR for the past couple of months, and have been particularly impressed with its estimations of total (resting + active) calorie burn throughout the day - it adjusts my MyFitnessPal count accordingly, and I've made pretty easy work of losing and maintaining weight with this method and tracking food. The Charge HR constantly tracks HR, and I've found it to be pretty accurate. Is there a chance that the Apple Watch will provide a similar overall calorie burn in the Health app? Or should I just plan on keeping my Fitbit on one arm and the AW on the other? I'm really hoping that I can use the AW as a full-on replacement for the Charge HR, even though I'll have to charge it once a day rather than every 5 days or so. I'm sure I'm missing a dozen questions or so, too, so I'll probably ask further in this thread.