1. Up to 20 day battery life
2. 50m water resistant
3. Activity tracking
4. Built in heart rate monitoring
5. Heart rate alerts
6. Colour AMOLED display
7. Tempered Glass with anti-fingerprint coating
8. Find my phone option

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.

The Mi Smart Band 4 has a 0.95” colour AMOLED display that has an adjustable brightness. The display has a simplified touch screen with an anti-fingerprint coating. The display is made from tempered glass. The Mi Smart Band 4 has a staggering battery life of up to 20 days and requires a +- 2 hour charge only. The capacity of the battery is 135mAh. The band has a 5ATM water resistance rating, meaning it can go as deep as 50m under water. Basic activity tracking includes steps, distance and calories burnt. Workout modes include treadmill, exercise, outdoor running, cycling, walking and swimming. The Mi Smart Band 4 measures heart rate 24/7 and also has heart rate alerts, that can notify users when certain heart rate levels are entered. The device also monitors sleep, to better understand sleeping patterns and duration. The Mi Smart Band 4 connects wirelessly to smartphones and with Bluetooth 5.0, lower energy consumption takes place during connection. The Mi Smart band 4 can be used with phones running Android 4.4, iOS 9 and above. To get the most of of this health-driven device, other features also include a stopwatch, alarm clock, and timer. The watch also has an option to locate a misplaced phone with Find my Phone. The device can also be used to unlock certain phone models remotely, has an event reminder, a do-not-disturb mode, a lock screen and has music control - music playing on a smartphone can be controlled using the Smart Band 4.

What's in the box
Mi Smart Band 4 x1
Wrist strap x1
Specialised charging cable x1
User guide x1