M4 Smart Watch Sport Armband, Fitness Tracke
pecification:
Type: M4 (Global Version)
Screen Size: 0.95"
Wrist Strap Material: Thermoplastic polyurethane
Adjustable Wrist Strap Length: 155-216mm
Wristband Width: 18mm
Water Resistance Rating: 5 ATM
Display Type: AMOLED
Resolution: 120 x 240 RGB
Colour Depth: 24bit
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)
RAM: 512KB
ROM: 16MB
Sensors:
-3-axis accelerometer + 3-axis gyroscope;
-PPG heart rate sensor;
-Capacitive proximity sensor
Wireless Connectivity: BT5.0 BLE
Battery: LiPo, 135mAh
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