※ The silicone band is starting to feel a little sticky due to hydrolysis. If you are concerned, please purchase a new band separately. Initialized. Purchased in January 2023. 【Dimensions and Weight】 Length: 39.32mm Width: 18.6mm Height: 11.75mm Weight: 17.69g 【Battery & Charging】 Battery Life: Up to 10 days Charging Time (0-100%): 2 hours Wireless Transceiver: Bluetooth 【Sensors & Parts】 3-axis accelerometer Optical heart rate monitor Vibration motor Red and infrared sensors for blood oxygen wellness measurement. Ambient light sensor Device temperature sensor 【Display】 AMOLED display Corning Gorilla Glass 3 【Data Storage】 Detailed motion data in 1-minute increments is stored for 7 days. Daily statistics are stored for the past 30 days. Heart rate data is stored at 1-second intervals during exercise and 5-second intervals otherwise.