This is a Xiaomi Mi Smart Band 4 smart watch. I am selling it because I purchased another smart watch. (Reset to initial state) There are no issues with its operation, but it has been used to a certain extent. Please check the photos for the condition. If you have a "Xiaomi Smart Body Composition Scale," you can also manage your weight by syncing with the smartphone app "Zepp Life." There is no box or instruction manual. Everything is shown in photo 1. Please refrain from price negotiations. Please refrain from purchasing if you are sensitive to used items stored by a private individual. Available for immediate purchase. [Contents] ・Main unit ・Charging adapter (genuine) ・Charging adapter clip (third-party) ・3 bands (unused, but only 2 removable fixing pins. Photo 10) ■Product Overview A smart band equipped with a full-color display and heart rate monitor. It can be used for up to 20 days on a single charge. Compared to the previous model, the brightness of the "full-color AMOLED touch display" has been improved, and the display area is 39.9% larger. It has a water resistance of up to 50m (5 ATM) and recognizes 5 swimming styles. 24/7 heart rate monitoring and sleep tracking are available.