https://www.cnet.com/news/htc-vive-standalone-vr-hitting-us-later-this-year/

You may have no idea if you want a standalone VR headset, but there are going to be plenty of options to choose from.

HTC Vive Focus, a mobile standalone VR headset first launched last year in China, is now going worldwide by year's end, according to an announcement by HTC during the Game Developers Conference in San Francisco. The headset has built-in 6 DoF (six degrees of freedom) tracking that allows movement in a room without added external sensors, and runs software compatible with HTC's Viveport VR apps and games, not Steam, using a software toolkit called Vive Wave.