Ultimately, your choice in action camera should come down to performance and ease of use. We've filmed hours of footage with many of the major contenders to determine where each device stands in the field. Some excel in all manner of extreme situations, while others can fall apart underwater or once the sun goes down. And what good is an action cam if it's not built for action?

While the GH5 was the first mirrorless camera to record 4K 60p, the GH5s takes it one step further and can record 4k 60p in Cinema 4K (4096 x 2160) -- a version of 4K recording that maximized resolution. The GH5s is also capable of internal 4:2:2 10-bit recording, which delivers even stronger than the color reproduction. It can also shoot HD at 240fps, and you can use a Vlog-L color profile for great dynamic range.
The highlight of the RX100 VI over the RX100 VA is its unprecedented macro capability. The zoom on the 24-200 mm f/2.8-4.5 zoom lens cannot be beaten by other compact underwater setups. Details captured with this lens are remarkable. When combined with a wet macro lens (diopter), the realm of super macro photography is attainable. The tiniest details of the smallest subjects can be captured with this set up (once you get a little practice in of course).
The BMPCC4K has a built in 5” monitor, which makes viewing and framing your subjects underwater a breeze. The LCD screen on the BMPCC4K is lovely -- it’s sharp, bright and has good contrast. The BMPCC4K has no in camera stabilization, but this can be solved in post-production with the free Davinci Resolve subscription that comes included with the camera. Also, the BMPCC4K only has single-point autofocus, which is challenging when shooting video underwater. The solution to this, which most videographers prefer anyway, is to use manual focus. With the Nauticam BMPCCII Underwater Housing, there are numerous MFT lenses that Nauticam supports manual focus for. To see a list of supported lenses with the Nauticam BMPCCII Underwater Housing, see our Nauticam Port Chart.

The BMPCC4K has a built in 5” monitor, which makes viewing and framing your subjects underwater a breeze. The LCD screen on the BMPCC4K is lovely -- it’s sharp, bright and has good contrast. The BMPCC4K has no in camera stabilization, but this can be solved in post-production with the free Davinci Resolve subscription that comes included with the camera. Also, the BMPCC4K only has single-point autofocus, which is challenging when shooting video underwater. The solution to this, which most videographers prefer anyway, is to use manual focus. With the Nauticam BMPCCII Underwater Housing, there are numerous MFT lenses that Nauticam supports manual focus for. To see a list of supported lenses with the Nauticam BMPCCII Underwater Housing, see our Nauticam Port Chart.
You may already own a waterproof camera. The latest top-end iPhones and Android phones are IP rated for submersion for short amounts of time. And the rise of quality smartphones has gone a long way in reducing the number of dedicated point-and-shoots on the market. But even if you're just taking a quick dip and want to snap a selfie, there are reasons not to take your expensive phone into the water.
The feature-set and price point of the DJI Osmo Action make it pretty obvious from the get-go that it's an attempt to undercut the GoPro HERO7. Does it succeed? Like all things, it's complicated. The front-facing screen is a boon, the stabilisation is just as silky smooth as the HERO's, and it's wallet-friendly price is nothing to sniff at. That's not to say it's perfect; there are a few lag issues at high resolutions, the app can be unreliable, and video from the HERO is a touch flatter, which counts in professional realm when it comes to the grade. For an affordable alternative to the HERO7 Black though, the Osmo Action is a fantastic choice.

Which underwater camera is best?


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.
The A7 III, with its compact and ergonomic design, has been a very popular camera for video recording. The battery life is drastically improved compared to the previous A7 Series cameras, which was a primary complaint of Sony Alpha users and is particularly beneficial for underwater video, as it allows you to shoot for much longer without the need to open the housing. The A7 III also has dual SD card slots, which play an additional role in the maximum allotted time you can record underwater without having to open the housing. The auto-focus during video works very well.

Are GoPro adhesive mounts reusable?


The Sony A6500 and A6400 are Sony’s top-of-the-line cropped sensor mirrorless cameras. They feature a 24MP APS-C CMOS sensor and records UHD 4K up to 30fps. The Sony A6500 offers many of the same pro-level features characteristic of Sony’s a7 series cameras, such as 5-axis image stabilization and S-Log picture profiles. The Sony A6400 offers the capability of shooting with hybrid log gamma, and an improved color science from the A6300 and A6500. Thanks to the smaller sensor, however, both cameras come at a much lower price point than the full frame a7 series.
The design of the Fujifilm FinePix XP140 is fun and kid-friendly, making it a solid choice for family holidays, but this doesn't mean it skimps on imaging tech. While it's not going to challenge something like the Olympus Tough TG-6, it's a capable little camera in its own right, able to shoot 4K video (albeit at a disappointing 15p) and equipped with an impressive 5x optical zoom lens with an equivalent focal range of 28-140mm, and all this comes at an extremely friendly sub-£200 price tag. A new scene recognition mode helps the XP140 assess for what it's photographing (which goes some of the way towards compensating for a lack of manual controls), and the controls are well laid-out and easy to use, even when in murky underwater conditions. For the price, this is a really solid buy.
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.
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.
Belonging to a previous generation of GoPro, the HERO5 Black is still a hugely impressive camera, one that can now be picked up for a reduced price with the advent of the HERO7. Like that model it shoots 4K video, albeit at a lower frame rate than the HERO6 or HERO7, and still has the useful 2in touchscreen on its rear. Full HD video can be shot at 120fps for super-slow-motion output, and it’s possible to shoot stills in Raw format, which gives you greater flexibility to tweak them in post-production. This was also the point at which GoPro HERO cameras received dual microphones, improving audio capture. If the HERO7 Black is too dear for you, this waterproof digital camera should more than satisfy your needs.

The rest of the camera's highlights include Wi-Fi for smartphone connectivity (via an app), GPS, a built-in eCompass, and a temperature sensor. You can embed data from the sensors in your images when you edit them, thanks to a dedicated app by Olympus. And the 3-inch LCD display means navigating through all the camera's features is easy. The screen is considerably sharper than one found in the device's predecessor.

What do you do with a GoPro camera?


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.

best budget underwater camera

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