Xiaomi Mi Smart Band 4


Up to 20 day battery life

50m water resistant

Activity tracking

Built in heart rate monitoring

Heart rate alerts

Colour AMOLED display

Tempered Glass with anti-fingerprint coating

Find my phone option

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The Mi Smart Band 4 makes for a perfect health companion, with features such as activity tracking, workout modes and a 24/7 heart rate monitoring. Activities measured include steps, distance and calories burnt, as well as sleep monitoring, giving you a better understanding of sleep patterns and duration. The heart rate monitoring also has heart rate alerts that can be used to notify users when certain heart rate levels are entered. The band has a battery life of up to 20 days and and a 50m water resistance rating. Other great smart features include the option to locate a misplaced smartphone and unlocking a phone remotely.

More Info

Size And Weight


Battery and Power

Charging Time: +- 2 hours

135mAh. Up to 20 days


Capacitive touchscreen

Up to 450 nits


120x240 RGB



Buttons And Connectors

Touch button


3-Axis accelerometer + 3-axis gyroscope; PPG heart rate sensor; Capacitive proximity sensor


Android 4.4, iOS 9.0 or above

In The Box

Mi Smart Band 4 x1

Wrist strap x1

Specialised charging cable x1

User guide x1


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