I heard Apple is selling the Mattel View-Master device on their own site and will soon have it in their stores. The build quality of it looks very good and the price is not bad.
I like the Wearality Sky, but not the price. It's going to be ridiculously expensive. I think it gives the best smartphone experience without additional IMU hardware like the GearVR, but not $100-125 dollars more than a regular cardboard better.
The Homido Mini is very cool. It folds up and fits in your pocket. It doesn't encompass the phone, it only clips on. Looks like opera glasses, almost. And for "Google Cardboard", it might actually be ideal because you're never going to try to use it for an extended period of time, but it fulfills that role of "cheap thing to give people an idea". It's so easy to just whip out at parties or whatnot.
If you want the literal cardboard box, I suggest the Unofficial Cardboard 2.0+. It modifies the Google design slightly to make it more comfortable and durable.
The point was the person I was replying to was saying it was the lenses preventing immersion. No, it's a fundamental limitation of the type of tech he is using. A better lens setup isn't going to help.
I own four different passive viewers, one of which I built myself. I know what they are and are not good for. Two of them I carry with me everywhere. I just think we should be clear about their limitations, too.
Well while I'm not going to be running Battlefront in 3D 4k with the insane textures mod, that's not what I meant by immersion - what I meant is not being able to discern the edges of the screen, which is an unfortunate consequence of this headset since it puts the phone just a tad bit further from the lenses than a traditional Google Cardboard.