Because you need a few extra dollars in your pocket to splurge on activities actually worth capturing, the Fujifilm FinePix XP140 is one of our favorite waterproof cameras available. It’s offered at a really attractive price point (slightly north of $200), yet still offers a rugged body with an excellent waterproof rating coupled with an excellent set of features.
Compared to the Olympus Tough TG-6, the Nikon COOLPIX can capture higher resolution images with more versatile zoom range. But the TG-6 has a brighter lens (f/2.0 versus f/2.8 in the Nikon), as well as the ability to shoot photos with higher ISO, so it's better in low-light photography. The Olympus also has higher burst-capture capabilities than the Nikon (20 versus 7 frames per second).
Canon is consistently a leading manufacturer of cameras and lenses in the video realm and the 1DX MkII is their flagship camera. The color science that is characteristic of Canon systems is highly sought-after and the sharpness of their lenses is not to be understated. If you are looking for a top-of-the-line DSLR that functions not only as an amazing stills camera but also as a professional-grade video camera, the Canon 1DX MkII is for you. The downside, is that the underwater housings are somewhat larger than the other housings listed in this guide.
The next most immediate specification to consider would be the frame rate that your video camera allows you to record in. Top-of-the-line video cameras record at 4K resolution and 60 frames per second (fps), giving your footage that smooth, slow-motion cinema look that everybody loves. This is a highly sought-after capability and only a select few cameras on the market (excluding high-end cinema systems) provide this feature.