Xiaomi Mi Band 4 Black

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Specifications

Brand	Xiaomi
Type	Fitness Bracelet
Model	Mi Band 4
IP Rating	5ATM
Screen Type	AMOLED
Screen size	0.95″
Screen resolution	120X240 RGB
Brightness	≥400nit
Cover Material	2.5D tempered glass + AF coating
Payment	Alipay
Wristband type	detachable wristband
Wrist strap width	18mm
Wristband material	TPU
Wrist strap adjustable length	155-216mm
Memory	512KB
Flash memory	16MB
Bluetooth	v5.0 BLE
Charging method	2Pin Pogo Pin
Charging time	≤ 2 hours
Vibration motor	rotor motor
Material	PC plastic
APP	Mi Fit App
Supported OS	Android4.4, iOS9.0 or above
Weight	22.1g
Sensors	Triaxial Accelerometer + Triaxial Gyro PPG Heart Rate Sensor Capacitive Wear Monitoring Sensor
NFC	No
Voice assistant	No
Battery	LiPo, 135mAh
Battery life	≥ 20 days
Sports Features	running, walking, cycling, indoor running, swimming, exercise, sports, speed reminder, heart rate reminder, step counting
Health monitoring	Smart reminder, goal reminder, heart rate warning, sedentary reminder
Other Features	custom dial replacement, screen lock, timer, alert calls, SMS alerts, the APP message alerts, weather forecasts , phone locator, phone unlock, event reminder, night mode, do not disturb mode, Alipay offline payment, remote mobile phone music playback, , charging progress, wearing mode selection, OTA upgrade
Package Contents	Mi Band 4 x 1 Wristband x 1 Charging Cable x 1 User Manual x 1