TechRadar Verdict The GoPro Hero6 Black gets a major update with 4K 60fps and super-slow-motion Full HD 240fps video. These, along with improvements to image quality, faster transfer speeds and smaller file sizes make this the new best action camera. Pros +Durable, waterproof body+Slick 4K video at 60fps+Super-slow-motion 240fps video+Improved image stabilization+Much better Wi-Fi transfer speeds Cons -Still requires patience to operate-Controls can be cumbersome-An expensive hobby gadget Looking at the tiny GoPro Hero6 Black, it's almost impossible to tell it apart from last year's GoPro Hero5 Black. There are, however, plenty of noteworthy differences on the inside.[Update: The Hero6 Black has just been replaced by the Hero7 Black. While it shares the same video specs as the older model, the image stabilization system is a huge improvement, while the user interface and a number of other tweaks and refinements have made the GoPro Hero 7 Black are pick of the action cameras. With the price difference minimal between the two models, we strongly recommend skipping the Hero6 Black and getting the Hero7 Black. You won't regret it.], along with the Alpha A7R, was Sony's first entry into the world of full-frame photography. It's since been replaced by both the Alpha A7 IIand our favorite mirrorless camera right now, the Alpha A7 III, but it's still available and cheaper than ever. Performance is a bit sluggish compared to newer models, but if you're looking for a very affordable way to get into full-frame photography, the Alpha A7 (also referred to as the Sony ILCE7KB by some retailers) is definitely worth a look.]The new camera can capture super-slow-motion video at a high resolution, output a stabilized image in 4K, and transfer everything to your phone at faster speeds – your video can even be posted before your GoPro-documented adventure is even over if you wish. That's amazing for an action camera that's this tiny and not perfect, of course. The biggest problem with GoPro's devices is that the image quality is more impressive than our phones and other devices are capable of handling at times, due to the huge file sizes. It's a big problem when you offload and edit the video, especially slow-motion footage at a silky-smooth 240 frames per second. You can find yourself – and your phone and computer – overwhelmed by the demands of editing your GoPro's video said, GoPro's edit-in-post software has gotten a lot better in 2017, so as long as you don't feel in over your head transferring HD and 4K video files to your device this is the best action camera you can buy video at 60fps1080p video at 240fps12MP still image captureThe biggest change to the GoPro Hero6 Black is the arrival of GoPro's first custom chipset, the aptly named GP1 processor. This has allowed the Hero6 Black to offer 4K video capture at a smooth 60fps (frames per second); the Hero5 Black is only capable of shooting at 30fps. That's not all. Fancy shooting some breathtaking slow-mo footage? The Hero6 Black can capture 1080p Full HD footage at an impressive 240fps. In between those two extremes it's possible to shoot footage at hasn't just concentrated on boosting the frame rate of the Hero6 Black over its predecessor, also tinkering with the image stabilization to the GP1 processing engine, it's possible to have image stabilization active while shooting 4K footage. Stabilization is capped at 30fps, but it's a marked improvement over the Hero5 Black, which could only offer this on Full HD footage, while stabilization is also possible at up to 120fps at Full HD. Want to capture stills as well? The Hero6 Black, like the Hero5 Black, can capture 12MP images in single, burst and timelapse modes. What's new is a built-in HDR (High Dynamic Range) mode for high-contrast new mode replaces the Wide Dynamic Range mode on the Hero5 Black, and, again thanks to the GP1 processing engine, it captures images with greater detail in both the shadows and highlights. And, if you're in the habit of venturing out after dark, Night mode is here for more accomplished low-light shooting. Build quality and handlingWaterproof up to 10m/33ftDesign unchanged from Hero5 BlackWide range of accessories availableWhile there was quite a design shift from the Hero4 Black to the Hero5 Black, the Hero6 Black doesn't look any different from its predecessor, and that's a good thing. This action camera is as discreet as ever, with a very small logo on the front of the otherwise black-on-dark-gray device – you can't even see the logo when the camera is wearing its compact too, feels extremely durable (something that some more affordable rivals struggle with), and is waterproof (down to 33ft or 10m) without the need for a housing. As we experienced with the Hero5 Black, the absence of a housing also means that with no casing getting in the way of the built-in microphone, audio quality is that much better. Should you want to take the Hero6 Black deeper underwater, the optional Super Suit housing offers protection down to 196ft or 60m. It comes with a sturdy plastic frame that allows for all sorts of fun camera mounts, while the entire design is incredibly tight, snuggly fitting the microSD card right up against the user-swappable battery (confirmed to be the same battery as in the Hero5 Black, which is nice for cross-compatibility). GoPro packed a lot of camera into this design with the Hero5 Black, and we're even more impressed with it are 12 simple voice commands, covering pretty much everything you're likely to want to do with the cameraIt has a 2-inch touchscreen on the back for reviewing video and photos and adjusting settings, and it uses what seems like the world's tiniest touch-based user interface. You'd think this might be fiddly to use, but it's actually not too bad, with simple swipes and taps enough to access the Hero6 Black's settings and make changes quickly. The screen itself also looks to be an improvement over the Hero5 Black's, with that bit more clarity evident. If using the touchscreen is too much effort, the Hero6 Black also offers voice control. This isn't enabled by default, but it's easy to activate in the preferences menu, and you can then simply shout "GoPro start recording", or "GoPro take a photo" and the Hero6 Black will spring into action. There are 12 simple voice commands, covering pretty much everything you're likely to want to do with the voice control was present on the Hero5 Black, the Hero6 Black has a new Wake On Voice function. Turn the camera off with a voice command and your Hero6 Black with switch off and run a low-power listening mode, waiting for the command "GoPro turn on". Leave it longer than eight hours and the Hero6 Black shuts down completely. Best action camera: 10 cameras for the GoPro generation Current page: Features, build and handling Next Page Video quality, editing and apps Matt Swider is Founder and Editor-in-Chief of The Formerly TechRadar's US Editor-in-Chief, he began his tech journalism career all the way back in 1999 at the age of 14. He's tested over 1,000 phones, tablets and wearables and commands a Twitter account of 1m+ followers. Matt received his journalism degree from Penn State University.