A few weeks ago I wrote a preview article introducing the Yi 4K action camera. The upstart Chinese company has boldly promised that their top of the line $249 action cam can outperform the GoPro Hero4 Black (the Hero5 Black had yet to be announced when I began testing) which sells for $100-150 more.

That's a pretty bold statement considering that GoPro is a name synonymous with action cams, so much so that many people call any action camera a GoPro. I've spent the last few weeks testing that claim, and you know what, the Yi 4K is not as good as a GoPro Hero4 Black.

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