Right now this is "All of them" for eMagin...One Helmet Is About To Take The F-35 To New Heights

The F-35 pilot also has a high level of control over what symbology and information is displayed in his field of vision. It provides pilots with airspeed, heading, altitude, targeting information, and warnings on the helmet’s visor, rather than on a traditional HUD.

https://nationalinterest.org/blog/buzz/one-helmet-about-take-f-35-new-heights-96471