This videos may be of interest:

  • Best 4K Action Camera? YI 4k Action Camera Review
  • YI 4K Action and Sports Camera, 4K/30fps Video 12MP Raw Image with EIS...
  • Yi 4k+ Action (Voice Control,240 Slow-mo, EIS,...) Yi 4K. It's Better ...
  • Yi 4k Plus! Worth Buying in 2018? Budget 4k 60FPS?!
  • Yi 4K Action Cam Review - The GoPro Killer!?
  • YI 4K Action and Sports Camera, 4K/30fps Video 12MP Raw Image with EIS...
  • Yi 4k+ Action (Voice Control,240 Slow-mo, EIS,...) Yi 4K. It's Better ...
  • Best 4K Action Camera? YI 4k Action Camera Review
  • Yi 4k Plus! Worth Buying in 2018? Budget 4k 60FPS?!
  • Yi 4K Action Cam Review - The GoPro Killer!?
Here some other interesting products: