Xiaomi is allegedly working on a button-less smartphone, which it will launch in the first half of next year. It is apparently codenamed Zhuque, and its standout feature will obviously be its total lack of buttons. Unfortunately the source of this information doesn't actually know what will replace the buttons - so it could be combination of gesture controls, pressure-sensitive edges, or voice commands. The phone will also have an under-display selfie camera, which will hopefully be better than Samsung's efforts in this space. The Zhuque will be powered by the upcoming Snapdragon 8+...
Source: https://www.gsmarena.com/xiaomi_buttonless_smartphone_to_arrive_next_year-news-64286.php