Facebook introduces live 4K streaming

The list of supported cameras is still limited though and I don’t know anyone who has any of the following cameras: Giroptic iO, Insta360 Nano, Insta360 Air, Insta360 Pro, ION360 U, Nokia Ozo, Z CAM S1, 360Fly HD, 360Fly 4K, and 360Fly 4K Pro

If you do have one of these then I wish you luck streaming 4k over-the-air.

https://media.fb.com/2017/07/25/introducing-the-live-360-ready-program-and-new-features-for-live-360/