Product details of Original Newest Xiaomi Mi Band 4 Color Screen Smart Bracelet Wristband Heart Rate Monitor Fitness Tracker Bluetooth 5.0 With 0.78 inch OLED Screen
Full color AMOLED touch display. View call, text, and app notifications
The all-new full colour AMOLED touch display that’s 39.9% larger* and brighter than ever before.
Activity and swim tracking.
Water resistant up to 50m*；3-axis accelerometer,3-axis gyroscope
Up to 20 days battery*
A single charge lasts up to 20 days.
Health monitoring 24/7 heart rate monitoring and sleep tracking
Sleep monitoring .Accurately tracks light and deep sleep as well as heart rate during sleep to help you adjust your sleep patterns.
A light vibration gently wakes you
up for a more comfortable morning.
Mi Fit app Records your health data to help you get the most out of life.