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