Xiaomi seems to have come up with a novel idea for creating a foldable smartphone that could appeal to users who are particularly fond of taking selfies. According to this particular design patent, the Chinese manufacturer has decided that the camera setup part of the device needs to be foldable. This way, a powerful camera system can be used from either side.
https://www.notebookcheck.net/Xiaomi-offers-up-questionable-solution-for-a-foldable-smartphone-that-takes-great-selfies-in-new-design-patent.458661.0.html