Basic parameters
Display: 1.43-inch AMOLED display
Resolution: 466 x 466 pixels. 60Hz high refresh rate
Bluetooth call: When your phone receives an incoming call. You can answer the call on the watch with one click and talk directly to the watch (the watch must be connected to the phone)
Blood oxygen monitoring: All-day heart rate and SpO monitoring
Strap: Xiaomi Watch S1 (black). With black leather strap and black fluororubber strap.
Xiaomi Watch S1 (silver). With brown leather strap and gray fluororubber strap.
Adjustable length: 157 to 241 mm
Strap material: fluororubber/leather
Sensor: Optical heart rate sensor. Accelerometer. Gyroscope. Electronic compass. Barometer sensor Light sensor. Cap sensor (multi-channel PPG biosensor)
Waterproof rating: 5ATM (wearable when swimming)
Battery: 470mAh. 12 days of typical use
Charging: Wireless charging
NFC: Supports MasterCard contactless payment
Connectivity: Bluetooth 5.2. Wireless network IEEE 802.11b/g/n 2.4GHz
Fitness mode: 117 fitness modes
Dimensions: 46.5 x 46.5 x 10.9 mm
Weight: 52g (without strap)