>>36826756as a fan of both franchises, i can say with confidence that there isn't a single ultra beast that wouldn't look totally out-of-place in digimon.
i don't understand why people keep trying to force a comparison between two art styles and design philosophies that are different in just about every way.
if anything, pheremosa, celesteela, and kartana look kind of like personas. and poipole could probably be a tales of mascot or a sonic character. but digimon? no way.