Xiaomi Mi Smart Band 4 Black
This product has been discontinued, the information below is for reference purposes only.
Key features:
- Weight: 22.1 g
- Water Resistance Rating: 5 ATM
- Display Type: AMOLED
Xiaomi Mi Smart Band 4 Description
Full colour AMOLED touch display
View call, text, and app notifications
Activity and swim tracking
Water resistant up to 50m; 3-axis accelerometer, 3-axis gyroscope
Up to 20 days battery
A single charge lasts up to 20 days.
Health monitoring
24/7 heart rate monitoring and sleep tracking.
View call, text, and app notifications
Activity and swim tracking
Water resistant up to 50m; 3-axis accelerometer, 3-axis gyroscope
Up to 20 days battery
A single charge lasts up to 20 days.
Health monitoring
24/7 heart rate monitoring and sleep tracking.
Shipping Weight: 0.22lb
Technical Details
- Weight: 22.1 g
- Water Resistance Rating: 5 ATM
- Display Type: AMOLED
- Screen Size: 0.95"
- Resolution: 120 x 240 RGB
- Colour Depth: 24 bit
- Screen Brightness: Up to 400 nits (max brightness), brightness adjustable
- Touchscreen type: On-cell capacitive touchscreen
- Screen protection: 2.5D tempered glass with anti-fingerprint coating
- Button: Single touch button (wake up, go back)
- Wrist strap type: Removable wrist strap (Mi Smart Band 4 is compatible with Mi Band 3 straps)
- Wristband width: 18 mm
- Wrist strap material: Thermoplastic polyurethane
- Adjustable wrist strap length: 155-216 mm
- RAM: 512 KB
- ROM: 16 MB
- Sensors: 3-axis accelerometer + 3-axis gyroscope; PPG heart rate sensor; Capacitive proximity sensor
- Wireless connectivity: BT 5.0 BLE
- Battery: LiPo, 135 mAh
- Charging Type: 2 Pin Pogo Pin
- Charging time: ≤ 2 hours
- Standby time: Up to 20 days
- Motor Type: Rotor
- Body material: Polycarbonate
- App: Mi Fit
- System requirements: Android 4.4, iOS 9.0 or above
- In the box: Mi Smart Band 4 X 1, Wrist strap X 1, Specialised charging cable X 1, User guide X 1