Oppo showed in detail a smartphone with a sliding screen in Russia

Oppo has revealed more details about its Oppo X 2021 concept smartphone with a sliding screen.

OLED display

devices can increase from 6.7 inches to7.4 inches. The company promises that the device can withstand up to 100 thousand such cycles of changing the display size. This is up to 5.5 years of daily use. You can control the screen size using a special side button.