Mi Smart Band 4
Step up, live more
Full colour display and heart rate monit

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.

Health
monitoring

24/7 heart rate
monitoring
and sleep tracking

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

Swimming
5 ATM water resistant up to 50m
Recognizes 5 different swim styles
Records 12 data sets including swimming pace and stroke count

Power walking
5 core data sets
Helps you improve power walking efficiency

Cycling
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.

Battle ropes
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.

Running
Tracks your pace and step count
Maintain a safe workout, whether you're running short or long distance

A REINVIGORATED TRANSFORMATION
Improving your daily energy starts with
understanding your sleep patterns.

Sleep monitoring
Accurately tracks light and deep sleep
as well as heart rate during sleep
to help you adjust your sleep patterns.

Wristband alarm
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

Idle alerts
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