XIAOMI Mi Band 4 Bluetooth 5.0 SmartWatch-Black

Waterproof grade: 5ATM
Screen type: AMOLED
Screen size: 0.95 ”
Screen resolution: 120X240 RGB
Display color number: 24 bits
The highest brightness of the backlight of the screen: more than 400nit, brightness adjustable
Touch screen: in the double point cell of mutual capacitance
Housing material: 2.5D tempered glass + AF coating
Button: 1 touch button (wake up, return)
Payment support: Alipay, payment with QR code (Only maybe in mainland China).
Bracelet type: detachable bracelet
Wrist strap width: 18 mm
Wrist strap material: TPU
Adjustable length of wrist strap: 155-216mm
Memory: 512KB
Flash: 16MB
Connection: BT5.0 BLE
Charging method: 2Pin Pogo Pin
Charging time: less than 2 hours
Vibration motor: rotor motor.
Housing material: PC
APP: Xiaomi Sports APP
System support: Android4.4, iOS9.0 or higher
Weight: 22.1g
Sensor: three-axis acceleration sensor + three-axis gyroscope
Self-developed PPG heart rate sensor
Capacitive wear control sensor
Battery: LiPo, 135mAh
Resistance: more than 20 days.
Sports function: running, walking, cycling, indoor running, swimming, working out, sports side screen, speed reminder, heart rate reminder, step counter
Health monitoring: standard reminder, goal setting, sleep detection, manual heart rate, heart rate throughout the day, resting heart rate, heart rate curve, sedentary reminder
Other function: alarm clock, preset dialing, custom replacement dialing, screen lock, timer, countdown, mobile phone alarm, connection disconnection reminder, call reminder, SMS reminder, WeChat reminder, reminder calendar, reminder of APPLICATION message, weather forecast, search phone, unlock mobile phone, event reminder, night mode, do not disturb mode, Alipay offline payment, mobile music playback with remote control, Bluetooth transmission, screen of loading progress, selection of usage mode, OTA update
Languages: (only Chinese and English are updated 100%, others only some parts) ★ Arabic. ★ Chinese ★ English. ★ Dutch. ★ French ★ German ★ Indonesian. ★ Italian ★ Japanese. ★ Korean ★ Polish. ★ Portuguese. ★ Spanish ★ Russian. ★ Thai ★ Turkish ★ Ukrainian. ★ Vietnamese