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      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.

      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.

      * Support for local languages will be added later via OTA update.

      A MOTIVATIONAL
      TRANSFORMATION

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

      • 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.

      • 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

      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.

      NOTE:



      • * Water resistant up to 50m. Water resistance is in accordance with GB/T 30106-2013 standard. Testing performed by the National Quality Supervision and Inspection Center for Watches. Mi Smart Band 4 water resistance report code: QT1902005;

      • * Mi Smart Band 4 lasts up to 20 days on a single charge according to Huami Laboratory testing: Tested using default settings, with 30 minute automatic heart rate monitoring enabled, receiving 100 notifications per day, 2 alarms per day, vibrating for 5 minutes, touching the touch button 10 times per day, and syncing with the app once per day. Actual results may differ due to to differences in environment, use and settings.

      • * "39.9% larger display size" is in comparison to Mi Band 3. Mi Band 3's display measures 17.26mm in length and 9.66mm in width. Mi Smart Band 4 measures 21.6mm in length and 10.8mm in width. Calculated as (10.8*21.6-9.66*17.26) / (9.66*17.26), the Mi Smart Band 4's display is 39.9% larger than Mi Band 3's display.

      • * Images are for reference only, font may be slightly different from actual product.

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