Today ,I decided to experiment and forget about expensive high end phones for a while, so I went ahead and bought Nokia X1-01. I got this model mainly for two reasons: ultra cheap, 3.5mm+memory card support. As a phone it is a very ordinary budget phone with the support of 2 simultaneously working SIM cards. It also has some kind of spill proof body.There was nothing ordinary, however, when I turned on the music player... I have owned : Sansa Clip+ , Samsung Vibrant, Nokia 5800, iPhones.. I can safely say that Nokia X1 is not lagging behind them in any aspects of the sound quality. The loudness is just like on Clip+. The S/N ratio seems to be very good, I could not notice anything with Triple.Fis. The stereo imaging and instrument separations is very good, not worse than Voodoo Mod Vibrant. The sound is on the warm side, the high frequencies are somewhat laid back relaxed, bass is very prominent and punchy. What really liked is the dynamic range and speed! Music was so engaging out of this little phone, I could not believe that. One thing is sure that this little thing blows 5800,and 5310 out of the water just like that. 5800 and 5310 both seem compressed and congested in comparison. In terms of usability this phone is ultra basic, no fast forward , no EQ, no playlsts just straight list of all songs. The only good thing is that you have folder navigation and binary ratings.