YouTube is the only major player on the social media / content media marketplace that currently offers services live streaming at 4K resolutions.
So far, Facebook offers the opportunity live video streaming up to resolutions of 720p HDTV. It is true that this is not a low resolution, but user requirements and increasing development of smart TVs 4K requires new standards of quality video.
Starting from Friday, April 7 2017, Facebook launched in most European countries, 4K Live Streaming service.
Celebrities, companies, bloggers and other media who wish to share live images on Facebook accounts, I can do Friday at resolutions of 4K.
A very important step for Facebook, which month brings improvements and new options to both iOS mobile apps and AndroidAs well as the web version of the platform.