So I now had six months the bracelet Fitbit Flex and was excited and now I have decided to use the batch because I wanted to have the floors with it. I also think it's nice that a clock with the display is and I also all other data (can set which I would like to see) can go see right on the tape. The alarm works einwandtfrei. I am awakened, without my partner is disrupted. The sleep control agrees quite well. I am very impressed how accurate it works. And that automatically goes in charge, is the hit. What I also find very important: The support at Fitbit is first class. Very helpful and accommodating and also in the quicker speed. Perfect! For me there are clearly 5 star!