Mi Smart Band 4 Step up, live more. Full colour display and heart rate monitor
- 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.
- You need to update to get full English version.
* 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.
- Brand: Xiaomi
- Model: Band 4
- Waterproof Level: 5ATM
- Screen: 0.95″ AMOLED Display
- Screen Resolution: 120X240 RGB, screen backlight maximum brightness ≥400nit, adjustable brightness
- Wrist Strap Width: 18mm
- Wrist Strap Material: TPU
- Adjustable Length of Wrist Strap: 155-216mm
- Memory: 512KB, Flash: 16MB
- Connection: BT5.0 BLE
- Charging Method: 2Pin Pogo Pin
- Charging Time: ≤ 2 hours
- Shell Material: PC plastic
- System: Support Android4.4, iOS9.0 or above