Specifications: 1.43-inch touch AMOLED screen: Xiaomi Watch S3 features a 1.43-inch round AMOLED screen with thin bezels. The screen offers 8-bit color depth, 60Hz refresh rate, 326 pixels per inch, and a brightness level of up to 600 nits. Bluetooth 5.2 technology: Xiaomi Watch S3 supports Bluetooth 5.2 connectivity. It is also equipped with the built-in Xiao AI voice assistant, allowing control of smart home devices from the wrist only. Functions: Xiaomi Watch S3 supports a range of health monitoring features, allowing you to monitor sleep, heart rate, blood pressure, and more. More than 100 sports modes: Xiaomi Watch S3 supports over 100 sports modes, including running, cycling, mountain climbing, swimming, indoor cycling, treadmill, and more. Large battery life: Xiaomi Watch S3 is powered by a 486mAh battery that can last up to 15 days on a single full charge. Water resistance up to 5ATM: Xiaomi Watch S3 is water-resistant up to a depth of 5ATM. Dual-frequency GNSS chip: Xiaomi Watch S3 contains a dual-frequency GNSS chip (GPS, BeiDou, GLONASS, GALILEO, QZSS), and users do not need to carry their smartphones for location tracking during workouts.