Seconding a Yi. Especially with the newer firmwares. (It'll do 2k video capture that upscale reasonably to 4k supposedly, but I use 1080p). The app is a bit cl

Seconding a Yi. Especially with the newer firmwares. (It'll do 2k video capture that upscale reasonably to 4k supposedly, but I use 1080p). The app is a bit clunky, but the camera is spectacular value compared to the GoPros near the price bracket.