Although obvious, I put this here first because this is one of the most important factors when purchasing your camera. The HERO3 has three editions (white, silver and black), ranging from $199 - $399 (prices continue to drop annually as newer versions are released -- we'll keep you updated on those). The HERO2's are at the bottom of this gap, but aren't as "new" and lack some features the 3's have (they're discontinued at this point but can be found on the net here and there).
Much like Band-Aids or Kleenex, GoPro makes products so good that their brand name is synonymous with the product itself. GoPro’s portable video cameras set the standard for action cameras: they’re durable enough to withstand just about any outdoor activity, they’re easy enough for anyone to use, and they include features typically reserved for far pricier cameras.
Ensure you can easily use your camera before purchase. This is an aspect many people overlook when getting a new GoPro, and it can cost them down the line. There are many bells and whistles tied to cameras. Though they might look great, you don’t want a model you aren’t able to operate. That does not mean you have to get the simplest model out there, but you should get one that is in your comfort zone.

underwater camera housing