Qualcomm has announced a range of XR viewers, a novel product category possible due to 5G speeds and bandwidth. They are intended to deliver high-quality content to be supported by the smartphones they connect to via USB type C, and will be made by companies such as Panasonic and OPPO.
https://www.notebookcheck.net/Qualcomm-previews-a-new-line-of-smartphone-linked-XR-viewers-for-2021.466933.0.html