But overall, the key features are outstanding. It would be even cooler if I could upload to YouTube with this thing. Other features like wireless streaming of files would be nice to preview footage after a dive. Finally, the company is keeping around the Hero 7 Black at 329 (down from 399), while the Hero 8 Black gets introduced at 399. The wi-fi feature seems underdeveloped- its only uses are for connecting to the GoPro app on phones/tablets and pairing with the wireless remote. While the Hero 8 did get a new battery, it’s only a 0.01v difference between the two, and is mainly to accommodate some higher battery requirements for the HyperSmooth 2.0 modes. Because there are only scroll-down and select buttons, changing options can sometimes take more time than it should. I have the camera zip-tied to a key chain retractor which I hang off of my BCD (diving vest). I ended up buying a GoPole because none of the official mounting accessories satisfied my needs and my video has gotten much more stable. 8 and a 1/2.3 Sony IMX377 sensor (12 megapixels) that can take photographs with a resolution of 4000 x 3000 pixels in JPG format and videos with a 4K. It sometimes has a greenish tinge but I have been very impressed with its performance both pointing at forwards as I swim and at macro distances underwater. California has murky, dark water and I was worried the camera wouldn't be able to cope with low light levels, but it has performed admirably. Overall I love this thing and it has been wonderful to share my time underwater with family and friends. The K-Edge mount is way more money but it's a much better solution in the long run. Gizmag compares the specifications and features of the newly-announced GoPro Hero4 actioncams to see which is the best option for you, and whether it's worth upgrading from last years Hero3. 2-axis gimbal Light-weight GoPro supported Based on Zenmuse. Not to mention the plastic feels cheap and is pretty pliable when given enough force.If you do get one and need a mount I'd recommend looking into 3rd party options, at least for bikes. You don't have a lot of options and the screw caps are huge which can impede mounting options. The included waterproof case is a nice bonus too! Battery life isn't ideal, somewhere around 90 minutes to two hours depending on settings, but it's not terrible either.My one gripe with the GoPro is the hardware that comes with it for mounting is pretty terrible. Audio recording is about what you'd expect from a device this small with such a tiny mic. Again, I'm sure if you're looking at this, you've already seen videos online of what this baby can do. I wont bore you with restating the specs, but suffice to say the resolutions, frame rates, etc all work as advertised and produce some outstanding videos. With that out of the way:I think the GoPro Hero3 is a very good camera that delivers pretty impressive image quality for something so small. There HERO 3 Black Edition is one powerful tiny video camera. My use case with the GoPro was more of an insurance policy while riding my bike over looking to record for sharing videos, so my review may vary a bit.