Mocom’s Pocket VR NABI is a patented world’s smallest VR viewer/glasses. 

Compared to a conventional VR headset or google cardboard, it is 1/14 of the weight and 1/34 of volume. 

This small VR viewer is easy to fold and comes with a high-quality lens (unlike the cheap VR viewers with consistently poor quality).

It is easy on neck since the structure allows you to grab the smartphone by hand and

avoid any strain on the neck that can be caused by the weight of the VR headset. 

It can be used on most of 4-6.4” mobile phones.