The reason I ask what you will be using it for is to determine which set of features you need. If you're going to be using it for simpler activities, don't go all out for a Black edition with a 60fps, 1080p cam (all HERO3's are 1080p, anyways). The reason the Black Edition is so expensive is because of the crazy quality it has, and if you're using it for a more simple basis I wouldn't worry about the difference. The Silver or even White is perfectly fine for you. The main difference between these two is the white's camera has a 5 megapixels with 3fps burst while the silver is 11 megapixels with a 10 fps burst -- is that worth $100 to you?
GoPro cameras are known for their premium shooting capabilities, but not all of them hold up underwater. Some options are a bit blurry, while others lack great depth. Always ensure the GoPro you take diving is able to shoot as well underwater as it can on land. A bit of quality difference is not the end of the world, but you want your videos to be as clear as possible.
best cheap underwater camera
aqua view underwater camera
The brand new Hero 4's are even more powerful, hence the hefty price of 5 bills with the HERO4 black. They come in either a Black or Silver Edition; however, there's also a new budget-friendly choice called the "HERO" which has some essential features to work with at around $130. I love the fact that GoPro brought this into the market to give us a choice -- i'll be buying a few of my friends one for Christmas.
GoPro HERO6 Black
And sure, those options could include your waterproof and crack-resistant smartphone, but keep in mind that the best action camera is designed for this kind of shooting. Plus, just because your phone is tougher, it doesn't mean you should risk losing or damaging the thing that keeps you connected to work, family and friends. It's also way easier to mount one of these to your body, car, bike or anything else than your phone.
Can a GoPro zoom?
GoPro is leading the charge toward consumer-created virtual reality (VR) environments, and their first VR-ready cameras make it happen with what they’ve dubbed “spherical capture,” which is pretty accurate, given the 360° field of view they record. VR is still a nascent technology, but it’s definitely the future. If you’re an early adopter, you’ll want to pick up a GoPro with spherical capture.