I am currently in the market for a new smartphone which i can use as a music player. So far i am really considering getting the galaxy S3. I also found that there were two models, one of which is the i9300 and i9305 (correct me if i'm wrong). Which of these two is the better one and which has the wolfson dac? Also how would this compare to the wolfson galaxy s4? Would it be comparable to the wolfson s4 or even the US s4? I am on a budget and if the S4 isn't considerably better i'll get the S3 and no the added features in the S4 don't interest me.