Unite Warriors knock-offs

Apologies in advance if this question is in the wrong place.

Have there been any knock offs of TakaraTomy Unite Warriors (UW) sets? Most UW sets on eBay have fairly high after-market prices. Some of the sellers are based in China. Is it likely any of these are KOs even with the high prices?

As far as I know the only CW/UW KOs are the oversized ones.

Thanks DH.