Xiaomi Band 10 It counts steps and is very accurate with steps. It tracks calories, but honestly, it's not accurate at all in calculating calories. It counts your sleep hours. It has a heart rate monitor. The watch lasts with you for approximately 21 days and then needs to be recharged. I used it for about 18 days and didn't charge it once. Contents: The watch and charger only, unfortunately its box is not available. Reason for selling: No longer needed.