I would have rated this 5* however the battery does not charge after the first usage. It took 4hrs to get it to start charging and I was going to return it but thought to trail it for longer. The second charge worked straightaway so let's see.
There are a lot of review about this watch on other platforms and it's recharging issues so it must be a defect.
With that said, functionality is great and it works well as a fitness tracker, plus the notifications for messages work really well.