Xiaomi Watch S4

Xiaomi Watch S4 - Elegant round smartwatch with a genuine 1.43" AMOLED display at 466x466 resolution, up to 2200 nits peak brightness, protected by scratch/drop-proof glass. Aluminum alloy case with a swappable stainless steel bezel available in multiple colors and designs, paired with easily interchangeable standard 22mm straps. Bluetooth 5.3, dual-frequency GPS (L1+L5) with GLONASS, Galileo, BDS, and QZSS support for high accuracy. Integrated sensors: accelerometer, gyroscope, electronic compass, barometer for altitude tracking, continuous heart rate, and SpO2. Supports 150+ sports modes. 5ATM water resistance. 486mAh battery lasting up to 15 days. Runs Xiaomi's HyperOS 2. No wireless charging or WiFi support.