Take all our advice with a grain of salt. It's good to come here to see what other people think, but just because someone tells you hands down to buy something doesn't mean you should. Check out product reviews on YouTube as well as reseller sites. There are a TON of options out there.
As far as Yihi chip being better than evolvs, I don't know. I guess it depends on how you define "better." I haven't seen much on how Yihi does their testing and manufacturing, but I've seen pbusardos videos on YouTube about evolv, and I think the cost of the board is reasonable given the quality of craftsmanship. That makes me gravitate toward the DNA, but the sx chips are no slouch, I'm just not as confidant in them based on the reviews I've seen.