Like I mentioned there are a number of upgrades to the new cameras like the size (much smaller), much faster performance, improved sharpness, and redesigned audio, but there are two things that really appeal to me as angler and photographer. First is the new flat-lens underwater housing. On the old GoPro everything shot underwater was out of focus dude to the curved lens. I had to fabricate an aftermarket piece just to make this work. Now anyone who owns one can get crystal clear images underwater out of the box.