Xiomi mi band has a great looks and even works well it gives you approximately accurate data about your total steps, sleeping time and calory burned in whole day, it judges all this data through your given height and weight mesures and some other data of yours, it also tell you about calls and message on your phone and you can also set alarm, and it gives atleast 28 days battery life . I truly recomment you to buy it, its great and also very stylish too.