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.
Mi Smart Band 4
Water Resistance Rating5 ATM
Resolution120 x 240 RGB
Screen BrightnessUp to 400 nits (max brightness), brightness adjustable
Touchscreen typeOn-cell capacitive touchscreen
Screen protection2.5D tempered glass with anti-fingerprint coating
ButtonSingle touch button (wake up, go back)
Wrist strap typeRemovable wrist strap
(Mi Smart Band 4 is compatible with Mi Band 3 straps)
Wrist strap materialThermoplastic polyurethane
Adjustable wrist strap length155-216mm
Sensors3-axis accelerometer + 3-axis gyroscope;
PPG heart rate sensor;
Capacitive proximity sensor
Wireless connectivityBT5.0 BLE
Charging Type2Pin Pogo Pin
Charging time≤ 2 hours
Standby timeUp to 20 days
System requirementsAndroid 4.4, iOS 9.0 or above
Sport Functions6 workout modes: Treadmill, exercise, outdoor running,
cycling, walking, pool swimming; Count steps, distance,
and calories burned
Health monitoringWorkout completion notifications, goal setting, sleep monitoring,
heart rate monitoring, all-day heart rate checking, resting
heart rate, heart rate chart, idle alerts
Other featuresAlarm, proximity sensor, pre-set watch face, customizable watch face,
lock screen, timer, stopwatch, phone alarm and notifications, incoming
calls, message notifications, calendar notifications, app notifications,
weather forecast, Find my phone, phone unlock, event notification,
Night mode, Do not disturb mode (works even without phone), music
controls on band, Bluetooth broadcasting, battery level display, different
ways to wear, OTA updates
Mi Smart Band 4 X 1
Wrist strap X 1
Specialised charging cable X 1
User guide X 1
Instantly view call, text, app notifications and music in play.
Keep your hands free as you keep up with life.
Your personal trainer is with
you every step of the way.
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
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.