Your transformation begins now.
Full colour AMOLED touch display
View call, text, and app notifications
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.
24/7 heart rate monitoring and sleep tracking.
Instantly view call, text, app notifications and music in play. Keep your hands free as you keep up with life.
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 an aerobic 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
5 core data sets Helps you improve power walking efficiency
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.
A POWERFUL TRANSFORMATION
24/7 Heart rate monitoring keeps you safe and healthy.
24/7 Heart rate monitoring
Safeguard your health at all times. Alerts you when your heart rate is too high.
AN ENDURING TRANSFORMATION
Stays by your side for 20 days on a single charge.