I have no idea how the 2 major smart watches (android wear, apple watch) have such horrible battery life. Microsoft Band had a 3 day battery life that would've been 5 days if we weren't forced to use a trash accelerometer that drained our battery by a crazy amount. That aside, Android wear being a complete OS is a waste of power. There aren't any useful apps for it that take advantage of the watch running a full OS.…
All I want from a smart watch:
- Waterproof, wireless charging, at least a week of battery life
- Automatically track exercise and sleep, let me update the data if needed.
- Track my fitness trends over time, looking at you resting heart rate
- Optionally, learn a couple of recurring patterns to improve automatic exercise assignment. If I hike twice a week and you see an exercise session with a consistent heart rate profile you better believe I am hiking