Minor points (without star deduction):
- With very small wrists is the wrist strap from the sides, since the upper part is quite long and not flexible
- Sometimes you have to sync more than persuade the app if you have registered for example, a new alarm and wishes to transfer the same
- Waterproof would have been fine. Swimming also belongs to the movement.
All in all, the best tracker that I have tested. Who does not want to swim or extremely narrow wrists has: BUY!