OPPO X 2021 - Rollable Concept Handset, Unroll the Infinite

The OPPO X 2021 is a rollable concept phone featuring a scroll-like display. Built with an OLED flexible screen that measures as small as 6.7 inches and as large as 7.4 inches, thanks to a dynamic sliding frame, it extends and retracts smoothly with no hard folding involved.

Original source : https://bit.ly/2QUxtQW