If you’re planning to use it mostly as a rugged camera, but not underwater: Pentax’s WG-8 uses the same lens as our 16-megapixel budget pick, but it has a higher-resolution 20-megapixel sensor.

Using a deep-sea baited remote underwater video system (BRUV), the team dropped a camera, safe inside presumably one of the best waterproof housings for cameras, down 1,054 meters into the sea off ...