Xiaomi Mi Band 4

Special Features: Health tracker: Measurement of heart rate,Sleep management,Pedometer,Calories burned measuring,Steps counting,Distance recording,Sedentary reminder
Other functions: Stopwatch, Alarm clock, Timer, Find my phone, Phone unlock, Event reminder, Do not disturb mode (works even without phone), Lock screen, Music controls on band
Alert type: Vibration
Sensors: 3-axis accelerometer, 3-axis gyroscope, Capacitive proximity sensor, Optical heart rate sensor

Screen: 0.95 inch Color AMOLED Display
Resolution: 120*240RGB
Touch key: Yes

Battery type: Lithium polymer battery
Battery capacity:135mAh
Standby time: About 20 days

Package Includes

1 x Mi Smart Band 4

 1 x Wrist strap

 1 x Specialized charging cable

 1 x User guide