Check your heart rate in real-time to make sure you get the best workout
as you climb mountain roads or dash around the city.
Whether you’re doing high-speed battle rope training or anaerobic battle rope workout,
Mi Smart Band 4 will track your heart rate, calories burned and more.
5 ATM water-resistant up to 50m
Recognizes 5 different swim styles
Records 12 data sets including swimming pace and stroke count
Mi Fit app
Records your health data to help you get the most out of life.
24/7 Heart rate monitoring
Safeguard your health at all times.
Alerts you when your heart rate is too high.
Stay active as you get reminders
to get up and get moving.
Color : Black
Usage : Activity and swim tracking – Water resistant up to 50m；3-axis accelerometer, 3-axis gyroscope
Battery : Up to 20 days’ battery
App Support Devices : Android 4.4/iOS 9.0 or above
Bluetooth : BT5.0 BLE