Things you should know about the Mi Band before buying.

The Mi Fit app is the heart of the Mi Band. The app is available on Android and iOS for free of cost. The device is compatible with both iOS and Android smartphones. It has to be paired via Bluetooth to the smartphone app to sync recordings. You can switch off Bluetooth on your mobile to save battery and pair it only when you wish to see results.

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The app can trigger the band to vibrate and notify users about incoming calls and also work as a silent alarm clock. The band will vibrate to awake you in the morning. The incoming call alert works when you are within the Bluetooth range.

Mi Fit can track the total number of steps, distance and approximate amount of calories lost everyday and sleeping pattern.

If you wear the band while going to bed, it shows the time when you actually slept last night and woke up the next morning. The night mode shows the amount of deep sleep you had. However, the readings may not be accurate.

The app also shows the approximate amount of calories and fat you burned in that span.