Last year I bought a Google Cardboard designed by Knoxlab (www.knoxlab.com ) and I am very positive at this new accessory for our Phone.
First of all they ask you to choose the color variations and the size that you need in order to use your phone in the cardboard box.
You do not have a joystick like others Vr platforms.
The pack is very thin and istructions very clear. I mounted everything with my device in a few minutes and started a new experience with Vr Ambience.
It is very interesting and very cool, it give you the change of exploring a 3D scene moving your avatar with a click.
I suggested you to try and visit thelinks below.