The Olympus TG-6 is the same size as the TG-5 and has very minor improvements which you can read about in the link above. The TG-6 will work in the TG-5 housing. This section applies equally to both the TG-5 and the TG-6. Either of these cameras can also be considered the best waterproof camera, outside of a housing. The TG-5 is just as good as the TG-6, and we have a great deal on it.
Before you start digging into the reviews, a few notes on choosing a cam that's right for you. You'll definitely want to consider frame rate, expressed as frames per second (fps). Some action cameras offer up to 240fps recording, while others only go to 30fps. For standard playback, 30fps is perfectly fine. It's when you want to slow footage down in editing to create dramatic scenes that frame rate matters. Footage captured at 240fps can be slowed down and played back smoothly at one-quarter speed. You may also want to go for a cinematic look, in which case you'll want one that has a 24fps capture option, the same speed used by most Hollywood productions.