Mi band 4 Xiaomi Global Version Fitness Tracker Fashion Touch Screen Smart Watch Sport Wristband Bracelet Heart Rate Monitor Activity Workout 50M Waterproof Pedometer Weather Forecast Reminder Sleep
Brand: mi
MIFIT APP supports Android 4.4+, iOS 9+
Weight: 22.1 g
Wristband Size: 18mm
Water Resistance: 5 ATM (50 meter)
Display: 0.95” AMOLED 120x240 RGB Touchscreen
Battery Life: up to 20 days with 135mAh battery, charge in less than 2 hours

Sensors
3-axis accelerometer + 3-axis gyroscope
PPG Heart rate sensor
Proximity Sensor

All Features
Workout completion notifications, goal setting, sleep monitoring, heart rate monitoring, all-day heart rate checking, resting heart rate, heart rate chart, idle alerts
Alarm, proximity sensor, pre-set watch face, customizable watch face, lock screen, timer, stopwatch, phone alarm and notifications, incoming calls, message notifications, calendar notifications, app notifications, weather forecast, Find my phone, phone unlock, event notification, Night mode, Do not disturb mode (works even without phone), music controls on band, Bluetooth broadcasting, battery level display, different ways to wear, OTA updates

Inside the box:
1 x Mi Band 4
1 x Black Silicone Wristband
1 x Charging cradle
1 x User Manual