case size Xiaomi 46 mm color Black strap design Black Rubber Strap GPS GPS WiFi (wireless fidelity) Wireless (Wi-Fi) bluetooth Bluetooth NFC (near field communication) Yes display type AMOLED Touchscreen display size 1.43" display resolution 466 x 466 Pixels, PPI 326 operating system Android sensor Acceleration, Geomagnetic, Air Pressure, Ambient, Capacitive water resistant 5 ATM battery capacity 470 mAh charging method Charging Dock call feature Receive and Answers Calls fitness feature 117 Workout Modes special features Blood Oxygen Monitoring product type Smartwatch model series Xiaomi Watch S1 lifestyle & usage Active & Sporty gender Unisex weight 36.00 g ( 1.27 oz ) Arabic Supported Yes model compatibility for Most Smartphones with Android OS/iOS compatible operating system type Android 6.0/iOS 10.0 and Above Shipping Weight (kg) 0.17