https://www.theverge.com/2017/9/11/16284280/xiaomi-mi-mix-2-full-screen-phone-review

The biggest and most obvious trend in smartphones right now is the effort to eliminate the bezel, or frame, that surrounds a phone’s display. The goal is to create a feeling that you’re only holding a screen in your hand, and there’s nothing else to distract you from what’s being displayed on that screen. Established players (Samsung and LG) and newcomers (Essential) alike are all trying to reach that goal. Even Apple is expected to announce new iPhone that largely eliminates the border around the screen this week.

Xiaomi is also playing this game and it actually had a head start over much of the industry when it launched the Mi Mix last year. The Mi Mix was one of the first phones to come out with nary a bezel at all. Its enormous 6.44-inch screen was pushed to the very corners of the phone’s frame, and the entire design of the device was driven by this goal to eliminate the border entirely.