The true fact about the google card board its a very cheap and best vr to experience the vr.
The main thing is its can support all android smart mobile handset and its a very use full product you can watch movie play the game andoid and you can play pc game to through your mobile why used the costly vr box product you can enjoy with this google cardbord its a light weight good qualite board and its easy to use very effortable product in this future.