Xiaomi Mi Band 3 vs Xiaomi Mi Band 4


  • Announced
    May, 2018 May, 2019
  • Status
    Available Available


  • Dimensions
    17.9 x 46.9 x 12mm
  • Build
    Plastic Plastic Polycarbonate
  • Weight
    approx. 20g (including wristband) 22.1g
  • Wristband
    Body - 17.9 x 46.9 x 12 mm
    Length - 247 mm
    Adjustable - 216 mm
    Material - Thermoplastic elastomer
    Buckle material - Aluminum alloy
    - Material Thermoplastic polyurethane
    - Width 18mm
  • Water Resistant
    - Operating temperature (-10℃~50℃)
    - 5 ATM[2]
    - IP67 (50 meters waterproof)
    - IP65 Water Resistant
    - Rating 5 ATM


  • Type
    OLED Touchscreen AMOLED On-cell capacitive touchscreen, 24bit colors depth
  • Size
    0.78 inches 0.95 inches, 2.41 cm
  • Resolution
    128 x 80 120 x 240 pixels
  • Protection
    2.5D tempered glass,
    - Anti-fingerprint coating Single touch button (wake up, go back)


  • Wi-fi Wi-Fi is a popular wireless networking technology using radio waves to provide high-speed network connections that allows devices to communicate without cords or cables, Wi-Fi is increasingly becoming the preferred mode of internet connectivity all over the world.
    BT5.0 BLE
  • Bluetooth Bluetooth is a wireless communications technology for exchanging data between mobile phones, headsets, computers and other network devices over short distances without wires, Bluetooth technology was primarily designed to support simple wireless networking of personal consumer devices.
    Bluetooth 4.2 BLE Yes, v5.0
  • GPS GPS The Global Positioning System is a satellite-based radio navigation system, GPS permits users to determine their position, velocity and the time 24 hours a day, in all weather, anywhere in the world, In order to locate your position, your device or GPS receiver must have a clear view of the sky.
    No No


  • Sensors Sensors are electronic components that detects and responds to some type of input from the physical environment. The specific input could be light, heat, motion, moisture, pressure and location, The output is generally a signal that is converted to use in computing systems, a location sensor, such as a GPS receiver is able to detect current location of your electronic device.
    3-axis accelerometer and PPG heart rate sensor 3-axis accelerometer, 3-axis gyroscope, PPG heart rate sensor, Capacitive proximity
  • Internal Storage Internal Storage is a data storage space (flash memory) mostly used in smartphones, tablets and other electronic devices where operating system, apps, music, photos, videos, files and other user data Is stored.
    16 MB
  • External Storage
  • RAM (Memory) RAM (Random Access Memory) is a type of computer memory that can be accessed randomly, any byte of memory can be accessed without touching the preceding bytes that allows information to be stored and accessed quickly from random locations. RAM is the most common type of memory found in computer systems, smartphones, tablets and other electronic devices.
    512 KB


  • Operating System OS => Every computer system run on a base software called Operating System (OS). Operating System controls all basic operations of the computer (such as smartphone, PDAs, tablet computers and other handheld devices). The Operating System allows the user to install and run third party applications (apps), apps are used to add new functionality to the device.
    Proprietary OS Proprietary OS


  • Type
    110 mAh; Li-Ion Polymer Battery Li-Po Battery; 135 mAh
  • Charging
    Input voltage - DC 5.0 V
    Input current - 250 mA Max
    Standby - approx. 20 days
    Up to 2 hours


  • Made in
    China China
  • Colors
    Black, Blue, Pink Black

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