Vivo filed a patent for a smartphone that could house an entire mini-drone inside of it. Some new concept renders of the device have emerged online, giving us a rough idea about how it would operate. The drone will draw power from the phone's battery and serve as a suspended camera of sorts.
https://www.notebookcheck.net/New-concept-renders-envision-Vivo-s-smartphone-with-an-embedded-drone.549385.0.html