A new Xiaomi design patent has surfaced that shows a smartphone with an outer frame similar to that of the iPhone. The patent also shows two pop-outs on the top frame, which could possibly be used for 360-degree video recording.
https://www.notebookcheck.net/New-Xiaomi-patent-indicates-an-iPhone-esque-design-and-mysterious-pop-outs-possibly-for-360-degree-video-recording.469408.0.html