OPPO reveals rollable handset and AR glasses concepts

At this year's OPPO Inno Day, the Chinese company unveiled two new concepts it is working on. One is a smartphone with a rolling screen, and another is a set of augmented reality glasses. The OPPO X 2021 is the company's newest concept phone, which it claims is the result of its research and development on flexible displays. It comes with a 6.7-inch screen size as a smartphone, but it can expand to a more square, tablet-like 7.4-inch panel.

OPPO claims it developed its own power train, structural plate, and screen laminate to ensure the X 2021 is durable. 

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