Hey bud. I use the GoPro. Pretty standard for multi-sport use. Mine is the 3 Silver edition...don't understand the need for the Black edition, as it only adds a remote, which you can just skip by using the app on your phone and adds $100. Mine tops out at 1080p, as it's about 5 years old now, but it's been a f'n gem. I use it for all my sports... The newest editions are full 4k, even in their base models I believe. I THINK the GoPro is capable of a remote mic, like inside your helmet, etc., but you can also use the open or close rear cover to add or limit wind intrusion. Couple examples, so you get a vibe of how each works. First, was an open rear case (two slits in it, not waterproof obv...) on the top of the amazing Beartooth Highway. 11000ft elevation where video starts, and something ridiculous like 119 curves, 19 switchback in 59 miles. Just northeast of Yellowstone Nat'l Park. Do miss the unique gear-driven-cam whine of the 5th Gen Honda VFR800!
Note: The footage you're seeing on YouTube has been compressed a little, so raw is noticeably better.
Next up, closed back while snowboarding. Learned my lesson the trip before, and used the little white rubber vibration dampener that was included with the kit. REALLY silenced any squeaking.
And lastly, a side mount on my downhill mountain biking helmet. One huge upside of the GoPro is the quick change mounting system. I have little adhesive mounts, top and side, on all of my different helmets. Easy peasy.