Product Description

Mi Smart Band 4 Step up, live more. Full-color display and heart rate monitor

Full-color 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.

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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.

Specification:

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

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