Oppo’s X 2021 rollable concept phone expands in your hand

TCL and LG have been teasing the idea of an extendable display on smartphones for some time, and now, we finally get to see a working prototype courtesy of a third brand. Today’s Inno Day 2020 event unveiled the Oppo X 2021 concept smartphone, which is all about its “continuously variable OLED display.” With a simple swipe on a button, the phone is able to transform between a regular 6.7-inch size and a tablet-like 7.4-inch size, and the software interface adapts accordingly for optimal experience — be it for single-hand usage or for multi-tasking.

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