unless you only sleep 1 hour a day....lol
The sweet spot is 23hr life and 1 hr charge, at least for me. My current fitness tracker fits that model easily. Sleep tracking is a very useful health metric, and a fitness tracker needs to be able to support it. If the
Watch was positioned as "only" a smart watch (ie an extension of my iPhone) that's one thing. But adding the fitness tracking feature sets it up to be compared to other fitness trackers.The issue with the
Watch is not if it has a 1 hr charge cycle, but if it can make it the other 23 hrs before the charge. When they get there, you can have full day tracking with it being off while getting dressed and showered. My current tracker recommends 23 hr / day on body to maximize the data accuracy. More time on body means a better notion of basal metabolic rate, etc.