Xiaomi Watch S4 Black

Dimensions
47.3mm x 47.3mm x 12.0mm
*Height, width and thickness dimensions exclude the strap and protrusions
44.5g approx. (without inbox strap)
Frame
Aluminum alloy frame
Strap
Black: fluororubber strap
Adjustable strap length: 140-210mm approx.
Silver: fluororubber strap
Adjustable strap length: 140-210mm approx.
Rainbow: fluororubber strap+nylon strap
Adjustable strap length: 135–210mm approx.
Sensors
Heart rate sensor (with blood oxygen sensor) | Accelerometer | Gyroscope | Ambient light sensor | Electronic compass | B
Satellite positioning systems
GPS | Galileo | Glonass | BeiDou | QZSS
Battery
Typical usage time: 15 days
Capacity: 486mAh
Display
Resolution: 466 x 466 pixels,PPI 326
1.43-inch AMOLED display
60Hz refresh rate
*Display refresh rate may vary across different interfaces. Please refer to the actual usage scenario.
Brightness: HBM 1500 nits
*The HBM brightness is the maximum brightness when the entire screen lights