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.
Action cameras like GoPros have their advantages too though. They're generally much smaller than waterproof compacts, making them lighter and easier to mount via a chest harness or helmet mount or similar. The best action cameras also tend to have better video specs, offering pristine 4K in high frame rates, which many waterproof compacts currently lack.
The RX100 VA introduced an increased image buffer, burst shooting up to 24fps, and customizable menus. This is excellent for photographers seeking to capture quick pelagic animals that need good burst speed and more processing power. The RX100 VA still carries all of the advantages of the RX100 V including the 315 point phase detection autofocus system and the 20 MP/1" Exmor RS BSI CMOS sensor. The main advantage of the RX100 VA over the VI is that the RX100 VA is able to shoot with both macro and wide-angle wet lenses on the same dive. This is because the lens is shorter and has less zoom capability than the RX100 VI. You also don't need to purchase additional ports/adapters for dedicated wide angle and macro set ups.

Fortunately, we are now blessed with several cameras and great underwater housings that meet these criteria for the "best underwater camera". Whether you are looking for the best underwater camera for scuba diving or snorkeling, we are sure you will find it here. I'd also like to point out, that we define a compact camera as a camera with a fixed lens.

best underwater camera for snorkeling