This has a great deal to do with the upgraded Cardboard experience that is now available to users and the major selling point in functionality terms of the Star Wars VR viewer. Thankfully there is no need to to worry about the upgrade as you can scan a QR code on the viewer and be directed straight to the suitable download for you.
der but more importantly it is a perfect fit for the viewer. My phone never fell out despite heavy use by both myself and my 6 year old son (the most rigorous play test I could give it).
All in all at around £15rrp this viewer is a lovely option for entry into the world of VR, it may not give you the huge immersive games that are now being developed but for tonnes of fun at a low cost this is rather hard to beat.