Not Even a Contest! The 4th Generation is The Winner! Why?
After i received the 2nd Generation i used it only once. That hard ABS plastic was uncomfortable. And i wasn't thrilled having to post production every pic & vid i shot. And it was hard to take it off your neck once on. Couldn't even give it away for free.
This 4th Generation is fantastic. Soft material & much larger. The mounts allow for upright pictures & videos with no post productions. I haven't used it yet so if there's an unforeseen issue i'll post it. Most action cams to mobile phones can be used on it. Taking it off is a lot easier compared to the older Gens.