This year's Xiaomi Mi band 4 uses OLED color screen for the first time, upgrade support Bluetooth 5.0 standard, the functionality is more and more perfect. However, if "nitpicking", the future Xiaomi Mi band 5 can also continue to improve in GPS, charging, waterproof performance, endurance and so on.

We have also posted a prediction post about Xiaomi Mi band 5 before, and if these features can be improved on the next generation of Mi band 5, I believe xiaomi will be more popular!

In addition, Xiaomi Mi band 4 launched only 8 days to ship more than 1 million units worldwide, an average of 5000 units per hour, creating the fastest shipping speed in the history of Xiaomi Mi band.

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