Xiaomi Mi Smart Band 4

£ 31.98  inc. vat

£ 26.65 ex. vat

Xiaomi Mi Smart Band 4

QuickFind: 911683 Mfr part code: MGW4052GL
  • 0.95" colour AMOLED display
  • Up to 20 days Battery life
  • Counts Steps + distance
  • 24/7 Heart rate monitoring
  • Sleep monitoring

Product Description

Xiaomi Mi Smart Band 4

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 life

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.


Improving your daily energy starts with understanding your sleep patterns.

Sleep monitoring

Accurately tracks sleep quality. Tracks heart rate during deep and light sleep. Helps 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.


Design and display

  • 0.95" colour AMOLED display
  • On-cell capacitive touchscreen
  • Resolution: 120 x 240 pixels RGB
  • Screen brightness up to 450 nits
  • Colour Depth 24 bit
  • All-new user interface - smoother and simplified touch screen experience
  • Brightness adjustment mode
  • 2.5D tempered glass with anti-fingerprint Coating
  • Single touch button (wake up, go back)


  • 135mAh battery capacity
  • LiPo Battery
  • Up to 20 days
  • Recharging time ~2hours

Activity tracking

  • Count steps, distance, calories burned
  • 6 workout modes: Treadmill, exercise, outdoor running, cycling, walking, swimming

Health monitoring

  • 24/7 Heart rate monitoring - Heart rate alerts
  • Sleep monitoring
  • Idle alerts


  • 3-axis accelerometer
  • 3-axis gyroscope
  • Capacitive proximity sensor
  • Optical heart rate sensor


  • Bluetooth 5.0 (Low energy)
  • No NFC for standard version

System requirement

  • Android 4.4, iOS 9 and above

Other Features

  • Water resistance - 5 ATM water resistant up to 50m
  • Stopwatch
  • Alarm clock
  • Timer
  • Find my phone
  • Phone unlock
  • Event reminder
  • Do not disturb mode (works even without phone)
  • Lock screen
  • Music controls on band
  • Wrist Strap material TPU
  • RAM 512K
  • ROM 16MB

Technical Specification

Xiaomi Mi Smart Band 4


Product Type Activity tracker
Integrated Components Heart rate sensor
Supported Host Device OS Android 4.4 (KitKat) or later, iOS 9 or later
Tracking Data Distance, calories burned, activity, sleep activity, heart rate, steps taken
Wearing Style Wrist
Feedback Type Vibration alert, visual interface
Clock Display Yes
Set Goals Yes
Features Music remote handling, calendar notification, find phone function, smart alarm, call alerts, phone unlocking, changeable band, inactivity alert, 3-axis gyro sensor, heart rate, 3-axis accelerometer


Type AMOLED - colour
Resolution 240 x 120 pixels
Diagonal Size 0.95"
Protection 2.5D Arc Glass
Dimensions (WxH) 10.8 mm x 21.6 mm


Wireless Interface Bluetooth 5.0

Input Device

Type Touch sensitive screen


Size 512 KB


Technology Lithium polymer
Capacity 135 mAh
Standby Time 20 day(s)
Recharge Time 2 hour(s)


Name Band
Fits Wrist Size 155-216 mm
Clasp Type Pin-and-tuck
Width 18 mm
Material Thermoplastic polyurethane (TPU)
Colour Black

Dimensions & Weight

Weight 22.1 g


Vibrating Alert Yes
Body Material Polycarbonate
Protection Dustproof, waterproof
Included Accessories USB charging cable

Environmental Parameters

Max Depth of Water Resistance 50 m

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£ 31.98  inc. vat

£ 26.65 ex. vat

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