I'd recommend the Zeiss VR One (http://zeissvrone.tumblr.com/ http://zeissvrone.tumblr.com/) and start doing development for mobile VR! Works for iPhone 6 and G

I'd recommend the Zeiss VR One (http://zeissvrone.tumblr.com/ http://zeissvrone.tumblr.com/) and start doing development for mobile VR! Works for iPhone 6 and Galaxy S6 by default, or you can print your own tray for a specific smartphone. Zeiss also provides a great Unity "developer starter package" (https://bitbucket.org/vrone/unity3d https://bitbucket.org/vrone/unity3d).