Xiaomi Watch S4 NFC Silver

Display: 1.43″ AMOLED, 466 × 466 resolution, refresh rate up to 60 Hz. HBM brightness up to 1,500 nits, peak brightness up to 2,200 nits.

Case: aluminium alloy frame, interchangeable bezel. Dimensions: 47.3 × 47.3 × 12 mm excluding protrusions; weight: approximately 44.5 g without the strap.

Controls: touchscreen, rotating crown and gesture support.

Battery: 486 mAh, up to 15 days with typical use, magnetic charging.

Monitoring and sports: heart rate and SpO₂ measurement, sleep and stress tracking, over 150 sports modes.

Navigation: dual-band L1+L5 GNSS supporting GPS, Galileo, GLONASS, BeiDou and QZSS.

Connectivity: Bluetooth 5.3, speaker and two microphones. Bluetooth calls when connected to a smartphone.

NFC: contactless payment support; availability depends on the region, bank and card.

Water resistance: 5 ATM — suitable for swimming in pools; not suitable for diving or sauna use.

System and compatibility: Xiaomi HyperOS 2; Android 8.0 or later, iOS 14.0 or later.