This stunning new smartphone has an expanding screen.
The OPPO X 2021 Rollable concept handset was showcased at The OPPO INNO Day 2020 event held in Shenzhen, China in Nov 2020.
The handset features a continuously variable OLED display that measures as small as 6.7 inches and as large as 7.4 inches.
It allows users to adjust the size of the display based on needs.