Meet the Pentax WG-M2: a 4k action cam that lets you record high definition video everywhere you go. It is waterproof up to 20 meters, shock-resistant up to 2 meters, and cold-proof down to 14F. The device has built-in WiFi and 7 video effect modes.
The WG-M2 action cam comes with an ultra-wide angle 204° lens. It has an underwater shooting as well. Costs under $300 at this time.