What started with the reader-favorite and budget-friendly Yi action cam has since grown into an entire lineup of cameras, and they’re all on sale right now for Black Friday, from the original on up to the 4K+, which features 4K/60 capture for an all-time low $210. Personally, I think most people should go for the Yi Lite at $73, which features a built-in screen, and 1080/60 capture, or 4K up to 20 frames per second.