The bracelet is like a bracelet, but for your money - fire! He counts steps, monitors sleep, measures the pulse as a whole, ok (more than 150-160 will lie).
While swimming - not very useful. In the water, he strives to turn on, then something else to do. It's a pity, with IP68 it was possible to track swimming, especially, as I understand it, this is a purely software issue.See full review