OPPO asserts that slidable-OLED phones like its X 2021 are the best things since foldables. The OEM has teased the device in more detail than ever before at the MWC Shanghai 2021, outlining the various techniques it has developed to ensure its durability and functionality.
https://www.notebookcheck.net/OPPO-premieres-a-more-in-depth-trailer-for-its-slidable-phone-s-design-and-function-at-MWC-Shanghai-2021.524282.0.html