18:9 screens have become a mainstream.
In this sense, the 5-inch phones that have been considered as gold-size devices in terms of single-hand operations, bring some difficulties to the final users.
Xiaomi has a big community in every corner of the world.
There are over 300 million Mi users around the globe.
So when launching a full-screen handset, it should also provide corresponding optimizations in its MIUI system.