Compared to V-moda: - not as much bass as v-moda, but perhaps sound a little bit more crisp and clear treble and midrange. I prefer the v-moda sound. - Very small and light - the mic is tiny and doesn't weigh anything compared to the larger, clumsy v-moda mic. Sound quality seems about the same based on a few calls to friends. - the mic button is TOO stiff and also requires that you double click very fast for it to register as double click and skip to the next song. If you don't double click VERY fast, it registers as a pause. As a pause button the button is fine. The v-moda mic button feels great in comparison, with good crisp clicking feel - but the whole mic is too big I think. - I don't know exactly why, but the ultimate ear ones feel more comfortable in my ears. Perhaps just that they are lighter and the mic doesn't pull on them like it does on the v-moda. When I first got them early this afternoon, I loved them, but now that I'm back home and comparing them with the v-moda, they just don't sound as good (if you like the strong bass of the v-moda set) and the button is really too stiff for my liking. I'm not sure which pair I'll keep, but I'm leaning toward the v-moda given the price difference. The ultimate ear ones just don't feel $50 better.