Basic parameter
Display: 1.43-inch AMOLED display
Resolution: 466 x 466 pixels. 60Hz high refresh rate
Bluetooth calling: When your phone receives an incoming call. You can answer the call with one click on the watch and call directly to the watch (the watch must be connected to the mobile phone)
Blood Oxygen Monitoring: All-day heart rate and SpO monitoring
Strap: Xiaomi Watch S1 (Black). Comes with a black leather strap and a black fluoroelastomer strap.
Xiaomi Mi Watch S1 (Silver). Comes with a brown leather strap and a gray fluoroelastomer strap.
Adjustable length: 157 to 241 mm
Strap material: Viton/leather
Sensor: Optical heart rate sensor. Accelerometer. Gyro. Electronic compass. Barometer sensor light sensor. Cap Sensor (Multi-Channel PPG Biosensor)
Waterproof level: 5ATM (can be worn when swimming)
Battery: 470mAh. Typical usage time is 12 days
Charging: wireless charging
Near Field Communication: Supports Mastercard contactless payments
Connectivity: Bluetooth 5.2. Wireless network IEEE 802.11b/g/n 2.4GHz
Fitness modes: 117 fitness modes
Dimensions: 46.5 x 46.5 x 10.9mm
Weight: 52 grams (excluding strap)