huynhttunfortunately, no-one here can really tell you the answer as the Noble X has graced the ears of very few reviewers. From head-fi you could possibly draw your own comparisons and Jude may even have put a comparison up against W20s. It's educated guesswork for anyone to answer you though, especially considering personal preferences and music taste etc. Comparisons are relative as well. As someone has pointed out: what do you want to be compared - sound or build quality. No matter what it is, this product is yet to be used by the masses.