Meet the Oppo X 2021, a rollable smartphone you can't buy

Samsung and Huawei have marketed their foldable devices as the future of smartphones. But Chinese rival Oppo has a different perception of the future, as demonstrated by its latest concept.
Rollable smartphones are on the way
Known as the Oppo X 2021 and announced during the INNO Day 2020 event, the concept smartphone in question boasts a retractable OLED display paired with a proprietary Roll Motor powertrain.

The product looks like any other smartphone with a 6.7-inch curved-edge display at first glance. But if you prefer a tablet-like experience, a simple swipe on the …
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