What am I supposed to say big now?
Compared to the other glasses, which is slightly heavier and more comfortable to wear, this looks cheap here.
Plastic hangers are very rigid plastic and act (perhaps due to the light weight) is not so high.
In addition, I find the comfort of the third generation better, because these glasses fourth-generation laterally pushes me with their brackets at the top.
Color flashes or excessive color distortion I can not determine in two glasses.
3D requires the image is only darkened slightly - in this case these glasses are a touch in front of the third generation.
Which reminds me of the difference only notice when I "sit up" both goggles and times through the times and through other views (so it can be quite fancy, since the difference seems very low).
Overall, I would therefore rather recommend to the third generation - only because this is to wear more comfortable for almost half the price, and otherwise returns the same result.