Mi Band 3 capsule17.9 x 46.9 x 12mm

Strap Length247mm

Adjustable strap length155 - 216mm


Battery capacity110mAh

Standby timeapprox. 20 days[1]

Battery typeLi-Ion Polymer Battery

Input voltageDC 5.0V

Input current250mA Max

Weightapprox. 20g (including wristband)

Body materialplastic

IP rating5ATM[2]

Operating temperature-10℃~50℃

Screen size0.78 Inch

Display resolution128 x 80

Sensors3-axis accelerometer and PPG heart rate sensor

Wireless connectivityBluetooth 4.2 BLE

Setting requirementsPhones with Bluetooth 4.0 and Android 4.4 or iOS 9.0 or higher

Models that support
the unlock function
models running MIUI systems on Android 4.4 or higher or
other devices running Android 5.0 or higher

Wrist strap materialThermoplastic elastomer

Buckle materialAluminum alloy


Displays the timeDisplays/rejects callsView messages

Lift the wrist to viewGoal ReminderIdle alert

Vibrating alarmDND modeFollow friends

Step counterPhone unlockEvent reminders

Sleep monitorPhone locator Heart rate monitor

Weather forecastGoal settingApp notifications

Calorie counterDistancePace

Dual screen themeView notificationsTimer

Setting display itemsLow battery alert

Swim and surfSmart UnlockOTA update

Package List
Fitness Tracker 1 U Wristband 1 U Charging Cable 1 U User Manual 1 U
1. The data on battery life was taken from testing conducted by the laboratory using the following parameters: using factory default settings, receiving and displaying 50 messages per day, having one alarm vibrate for 5 seconds, touching the button to display the time 10 times, spending 2 minutes on other operations, checking your measured heart rate 3 times, exercising for 1 hour per week (and activating the running function to monitor heart rate in real time and turning off heart rate notifications), and opening the Mi Fit App once a day to synchronize testing for data usage methods. During actual use, factors such as settings, operations, and the usage environment will have an impact on the battery life. These factors may cause results obtained during actual use to differ from lab data.
2. Data sources: IP rating of 5 ATM (equivalent to a water depth of 50 meters) is based on testing conducted by the National Quality Supervision Clock Inspection Center in accordance with GB/T 30106-2013, Report No. QT1803032. It can be worn in the shower, in the pool, or while swimming near the shore. However, it is not suitable for saunas or diving.