Mi Smart Band 4
Step up, live more
Full colour display and heart rate monitor
Your transformation begins now.
Full colour AMOLED touch display
View call, text, and app notifications
Activity and swim tracking
Water resistant up to 50m*；
Up to 20 days battery*
A single charge lasts up to 20 days.
24/7 heart rate monitoring and sleep tracking.
A BEAUTIFUL TRANSFORMATION
Get a wider, more colourful view right on your wrist.
The all-new full colour AMOLED touch display that’s 39.9% larger* and brighter than ever before.
Instantly view call, text, app notifications and music in play.
Keep your hands free as you keep up with life.
A MOTIVATIONAL TRANSFORMATION
Your personal trainer is with you every step of the way.
A REINVIGORATED TRANSFORMATION
Improving your daily energy starts with understanding your sleep patterns.
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.
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.
Stay active as you get reminders to get up and get moving.
AN ENDURING TRANSFORMATION
Stays by your side for 20 days on a single charge.