Specs and features Xiaomi Mi Band 2

TypeSmart watches and bracelets
Release date 2016.06.07
Display 0.42" OLED
Battery Li-pol 70mAh 20 hours
Dimensions 15.7x40.3x10.5mm. 19.4gram
Communication Bluetooth
  • Pulsometer
  • Accelerometer
  • Sleep Analysis


Wristband sizes

M 155-210 mm

Customer reviews Xiaomi Mi Band 2

Amazon.com 291 3.8
Ebay 126 4.8
Yandex Market 793 4.5
Ozon.ru 69 4.0
GearBest 1917 4.9
RU-MI.COM 638 4.0
NIX 3 5.0
Ulmart 28 4.0

Applications Xiaomi Mi Band 2

Mi Fit Anhui Huami Information Technology Co.,Ltd. 3.3
Mi Fit Anhui Huami Information Technology Co.,Ltd. 3.7
Bind Mi Band Ian Savchenko 4.3


Overview Xiaomi Mi Band 2 - The main functions

The fitness wristband Xiaomi Mi Band 2 is the most popular tracker due to the proper correlation between price and quality. The main sensors of the device are an accelerometer and an optical heart rate monitor which enable to:
  • Calculate the number of steps and distance covered;
  • Measure heart rate constantly;
  • Define the time and sleep stages;
  • Calculate the number of calories burned;
  • Measure training time;
  • Remind of little activity during a period of time;

Pros Xiaomi Mi Band 2

  • Waterproof (tested) body;
  • Quite accurate heart rate monitor good at wristband removal identification;
  • This light and compact device is convenient to carry;
  • The quality of construction and durability by the standards of trackers;
  • A wide range of accessories and colours of wristbands;
  • Up to 20 days of work without charging;

Cons and features of Xiaomi Mi Band 2

  • Inconvenient charging, an additional cable is required;
  • Inaccurate measurement of sleep time and big mistakes at sleep stages determination;
  • A small display shows little amount of information;
  • It is more difficult to put it on than usual watches;
  • Not suitable for serious sport exercises;
  • The constant measurement of heart rate is absent;
  • The glass easily gets scratches;

Additional advantages of Xiaomi Mi Band 2

  • Enables not to take off the wristband while having a bath and doing the washing-up etc;
  • Compact charging that can be easily put in a pocket;
  • Capacitive touch-sensitive button of control doesn’t react to accidental touches;
  • There are some additional apps proposed by outside developers which enable to widen the device functions. For example, the addition of tracks’ switching function;
  • Enables to receive vibrate notifications about calls and from social networks;
  • A quiet alarm enables to wake up without disturbing people around;

Disadvantages or what you need to know about Xiaomi Mi Band 2

  • Can mistake a hand movement for steps. Identifies usual hand movements to the accuracy of 75% during different levels of activity;
    • Measures sleep period very roughly. It fixes badly waking-up periods at night and usually doesn’t show a waking-up period that lasts less than 8 minutes;
    • Smart alarm was deleted in a new firmware, with a fixed vibrate alarm left;
    • The full range of wristband functions isn’t revealed because some functions of similar wristbands are already fulfilled;
    • During heart rate checking process it is necessary to wait several seconds before the wristband measures the heart rate (some models measure heart rate constantly);
    • To charge the device it is necessary to get a sensor out of the wristlet that takes some additional time;
    • Sometimes, especially when your hands are wet, it can be difficult to get a sensor out the charging port;
    • Mi Fit app shows little amount of information in comparison with Fitbit apps, for example;
    • The app does not seem to be interesting and doesn’t strongly motivate against another trackers;

    Operating Instructions Xiaomi Mi Band 2

    • During sea bathing it is better to take off the tracker as salt sea water can have a bad effect on the device working process;
    • It is necessary to choose the accessories very carefully as they are often made from low-quality materials;
    • Taking into account users’ reviews it is worth buying a screen protector.

    Analogs Xiaomi Mi Band 2 - Comparison

    Brand Xiaomi Xiaomi Huawei Honor Amazfit
    ModelMi Band 2 Mi Band 1S Band 3 Arc
    Minimum price USD
    User rating 4.6 4.8 4.3 3.9
    Functionality 3.4 2.8 4.1 2.6
    Sesors accuracy 3.9 2.7 3.2 3.8
    Pulsometer 4.3 2.3 2.9 4.5
    Accelerometer 4.3 2.8 2.7 4.2
    Sleep Analysis 3.1 3.1 4.0 2.9
    Bluetooth 4.0 LE 4.0 LE 4.2
    Connected GPS
    Material sensor Plastic; aluminum Aluminum; polycarbonate Plastic Aluminum
    Material strap Thermoplastic elastomer Silicone Polyurethane Elastomer
    Item width 15.7 mm. 13.6 mm. 16.5 mm. 19 mm.
    Item height 40.3 mm. 37 mm. 43 mm. 11 mm.
    Item depth 10.5 mm. 9.9 mm. 10.3 mm. 245 mm.
    Item weight 19.4 gram 15 gram 18 gram 20 gram
    Replaceable straps
    Strap dimensions
    Buttons 1 1 1 1
    Package weight 90 gram 95 gram 104 gram 116 gram
    Package width 10 mm. 96 mm. 100 mm. 73 mm.
    Package height 3 mm. 31 mm. 40 mm. 55 mm.
    Package depth 10 mm. 96 mm. 160 mm. 135 mm.
    Display type OLED PMOLED OLED
    Display size 0.42 Inches 0.91 Inches 0.42 Inches
    Display backlight
    Display colors 1 1 1
    Display width 32 px 72 px
    Display height 128 px 40 px
    Pixel density 147 ppi 196 ppi
    Auto adjust brightness
    Water Resistant IP67 IP67 WR50 IP67
    Temperature minimum -20 °C -20 °C
    Temperature max 70 °C 70 °C
    Battery type Li-pol Li-pol Li-pol Li-pol
    Battery capacity 70 mAh 41 mAh 100 mAh 70 mAh
    Battery life - Waiting 480 hours 480 hours 720 hours 480 hours
    Battery life - Tested 15 hours 15 hours 10 hours
    Magnetic Charger
    Input voltage 5 volt 5 volt 5 volt 5 volt
    Input current 45 mA 25 mA
    Charging time 2 hours 2 hours 1.5 hours 0.5 hours
    Android version 4.4 4.3 4.4 4.4
    iOS version 7 7 8 9.0
    Blackberry 10
    Windows 8.1 8.1
    Incoming call
    Incoming message
    Call ID display
    Digital faces 2 2
    RAM 256Kb 128Kb
    ROM 1Mb 8Mb
    CPU ARM Cortex-M4 Dialog DA14681
    Flash 16Mb
    Chipset SmartBond DA14681
    Operating System Proprietary OS Proprietary OS Proprietary OS Proprietary OS
    Support updates
    USB cable
    Unlock identity
    Find My Device
    Smart alarm
    Silence alarm
    Rotate to switch
    Dynamic heart rate
    Training mode
    Reminder to move
    Calorie consumption
    Distance covered
    Active Minutes
    Weight log
    Applicatio feature
    Add friend
    Share results
    Compatible apps 3 3 3
    Google Fit
    UP by Jawbone
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