Home SmartWatch/Band Mi Band 4 Launched - Features, Specifications, Price, Availability and More

Mi Band 4 Launched – Features, Specifications, Price, Availability and More

The wait is over. After too many speculations and leaks, Xiaomi has officially launched the most awaited budget fitness smart band of the year Mi Band 4 in China. Mi Band 4 comes with Color AMOLED Display, Voice Assistant Support and NFC. It is the 4th generation of the Mi Band Series with upgraded specifications and features.

Mi Band 4 Key Features:

  • Colored AMOLED Display
  • NFC
  • AI Voice Assistant
  • Battery
  • Bluetooth 5.0
  • Waterproof
  • Better Sensors

Mi Band 4 Features:

The Mi Band 4 design remains the same as its predecessor Mi Band 3.

The Mi Band 4 comes with a colored 0.95 inch (120 x 240 resolution) AMOLED touch screen display with scratch-resistant 2.5D glass protection on top of the touchscreen. With a color screen, soon there a large number of themes will be available for it. It features 77 colourful dial themes for added personalization. The display is now capable of showing more info along with incoming calls and text messages info. The display can show music playing on a device, see live weather, stock updates and many more.

Another great feature of the device is that the Mi Band 4 is equipped with AI voice assistant. Xiao AI has been included in the band and you can swipe right on the dial face to access the assistant. The new AI feature will be helpful to control the Xiaomi IoT products and many more.

6-axis high precision sensor is equipped in this device for more complex motion recognition. The sensor is capable of recognizing six major activities including swimming, indoor running, outdoor running, exercise, cycling, and walking. The new Mi Band 4 can able to detect different swimming strokes like freestyle, butterfly, backstroke, breaststroke, and mixed-style.

Xiaomi has launched two variants of Mi Band 4 one with NFC and the other as standard (without NFC). The NFC variant comes with AliPay contactless payment integration, which allows you to pay with a single tap from the band.

The heart rate sensor and sleep tracking features remain the same as its previous versions. The band supports Bluetooth 5.0 for pairing it with Android and iOS devices. The device is waterproof up to 5ATM and 50-meter.

The charging points are moved at the back just below the heart rate sensor. So charging the device will be easy when compared to the previous models where we used to remove the band from the strap every time.

The Mi Band 4 comes in Black, Brown, Blue, Orange and Pink colours. It comes with eight distinct bands (including the special Avengers edition)

Mi Band 4 Specifications:

Waterproof rating: 5ATM
Screen type: AMOLED
Screen size: 0.95″
Screen resolution: 120X240 RGB
Screen color number: 24bit
Screen backlight with: maximum brightness ≥400nit, adjustable brightness
Touch screen: On Cell double point mutual capacitance
Cover material: 2.5D tempered glass + AF coating
Press: 1 touch button (wake up, return)
Payment: support Alipay QR code payment
Wristband type: detachable wristband
Wrist strap width: 18mm
Wristband material: TPU
Wrist strap: adjustable length 155-216mm
Memory: 512KB
Flash: 16MB
Connectivity: Bluetooth 5.0 BLE
Charging method: 2Pin Pogo Pin
Charging time: ≤ 2 hours
Vibration motor: rotor motor
Shell material: PC plastic
APP: Xiaomi Sports App
The system supports: Android4.4, iOS9.0 or above
Weight: Mi Band 4: 22.1g | Mi Band 4 NFC version: 22.2g


  • Mi Band 4: Triaxial Accelerometer + Triaxial Gyro, Self-developed PPG Heart Rate Sensor,
    Capacitive Wear Monitoring Sensor
  • Mi Band 4 NFC Edition: Triaxial Accelerometer + Triaxial Gyroscope, Self-developing PPG Heart Rate Sensor, Digital Silicon, Capacitor Wear monitoring sensor


  • Mi Band 4: Not supported
  • Mi Band 4 NFC version: Support card reading, card simulation. Can be bound to bus card, access card

Voice interaction:

  • Xiaomi Mi Band 4: not supported
  • Xiaomi Mi Band 4 NFC version: support voice control bracelet function, query, control smart home, control mobile phone

Battery: Mi Band 4: LiPo, 135mAh, ≥ 20 days | Mi Band 4 NFC Edition: LiPo, 125mAh, ≥ 15 days

Mi Band 4 Battery:

As said, the Mi Band 4 features a 135 mAh battery of the standard variant and 125 mAh on the NFC variant. Xiaomi claims that the battery will last up to 20 days on the standard variant and 15 days on the NFC variant.

Mi Band 4 Price and Availability:

The Mi Band 4 will be available in two different variants. The one is with standard features and the other one is with NFC support. The standard variant is priced at CNY 169 (1700 INR approx.) and the NFC variant is priced at CNY 229 (2300 INR approx.)

In addition to the above two variants, there is also an Avengers Series limited edition of the Mi Band 4 which is coming with the Avengers, Captain America, Iron Man theme wrist bands. This limited edition is priced at CNY 349 (3500 INR approx).

The first sale of the Mi Band 4 standard variant in China is on June 14th 2019 and June 18th 2019 for the NFC variant. The reservations are already open for both variants.

See Also: Xiaomi Mi Band 4 Reservation is Open

Mi Band 4 Box Package:

The retail pack of the Mi Band 4 contains the Mi Band 4 Body, Wristband, dedicated charging cable and instruction manual.

The special avenger’s edition retail pack contains the Mi Band 4 Body (Complex Version), dedicated charging cable, instruction manual, US captain custom wristband, Ironman custom wristband, Avengers custom wristband.

There is no official news about the availability of the band in other countries/markets. But soon, it will be launched in other countries as its previous versions. As you were aware that the Mi Band 3 which was sold more than 1 million units in India alone.


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