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Xiaomi Mi Smart Band 4 Official AU Version - Fitness Tracker with Heart Rate Monitor

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Xiaomi Mi Smart Band 4 - Fitness Tracker with Heart Rate Monitor | Full Colour AMOLED Touch Display | Activity and Swim Tracking | Up to 20 Days Battery | Health Monitoring

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*;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.


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.

Your personal trainer is with you every step of the way.

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.

Tracks your pace and step count

Maintain a safe workout, whether you're running short or long distance.

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

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.


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.

Mi Fit app
Records your health data to help you get the most out of life.

24/7 Heart rate monitoring
keeps you safe and healthy.

24/7 Heart rate
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.


Stays by your side for 20 days on a single charge.

More Information
Model 23742
Condition New
Product Type Fitness Trackers
Connection See Description
Colour See Description

Weight 22.1g

Water Resistance Rating 5 ATM

Display Type AMOLED

Screen Size 0.95"

Resolution 120 x 240 RGB

Colour Depth 24bit

Screen Brightness Up to 400 nits (max brightness), brightness adjustable

Touchscreen type On-cell capacitive touchscreen

Screen protection 2.5D tempered glass with anti-fingerprint coating

Button Single touch button (wake up, go back)

Wrist strap type Removable wrist strap
(Mi Smart Band 4 is compatible with Mi Band 3 straps)

Wristband width 18mm

Wrist strap material Thermoplastic polyurethane

Adjustable wrist strap length 155-216mm



Sensors 3-axis accelerometer + 3-axis gyroscope;
PPG heart rate sensor;
Capacitive proximity sensor

Wireless connectivity BT5.0 BLE

Battery LiPo, 135mAh

Charging Type 2Pin Pogo Pin

Charging time ≤ 2 hours

Standby time Up to 20 days

Motor Type Rotor

Body material Polycarbonate

App Mi Fit

System requirements Android 4.4, iOS 9.0 or above

Sport Functions 6 workout modes: Treadmill, exercise, outdoor running,
cycling, walking, pool swimming; Count steps, distance,
and calories burned

Health monitoring Workout completion notifications, goal setting, sleep monitoring,
heart rate monitoring, all-day heart rate checking, resting
heart rate, heart rate chart, idle alerts

Other features Alarm, 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

Warranty 1 Year Warranty

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