AMP3 59 HEAL
Cowon 107 HURT
I think simplistic UI is what I preference. in fact signle-hand or inside the pocket operation is the best UI, for during listening music we have other works needed eyes and other hand to do. Every body know the simplify is the ultimate designing target in any modern industry products.
What AMP3 give up is the none audio function, and stress the core function of audios Such as design a hifi grade FM, a freebie hifi grade earphones, and a superb amp. Beaware, the protorble amp function is really benefit my daily audioing activities, I can hook AMP3 to PC audio（Video), to game player, to liquid TV to improve all those inferior sound source to be hi fi grade sound.
Hisoundaudio is really care about our daiyly usage, for example, the super long 100hours battery life per charge. compare to the gimmick social functioins, I would like to pick the long time battery, for no battery, you can do nothing.