Review on 45mm Focal Length Google Cardboard VR Kit - 🔍 Easy-to-Follow Printed Instructions, Numbered Tabs, NFC & Free Head-strap (Box Color) by Russ Conrad

One of the best cheap cardboard blocks. I find the magnetic pickup very good. Mine lasted about 2 months before it just got crushed once or many times and gave up the VR ghost. Pros: Good magnetic hold and good construction. Cons: Cheap, not very good glass with a lot of optical distortions and fixed IA (centre-to-centre distance) so you can't adjust them. I've seen a few shows with it with good results. Wasn't impressed at all with the NYT shows. There were some really cool space movies and a Pluto VR app that was educational and good. While watching a WW1 VR show (which was interesting since I didn't know WW1 was 3D) I noticed that the optical distortion at the edge of the field of view required me to look "down tended” to see the headlines to be able to read them clearly, which also means that using such optics for a long period of time will give you a headache as they are highly distorted (think bad glasses). For the money they are good. I have 4 different viewers and this one definitely had the best magnetic capture of them all. Worth the money but not very comfortable for long viewing