Thats bull i have the Galaxy S and the sound out of it is noticable worse than my Sansa clip and my old Iphone 2g and i also have the SM3. Better than the S9 ? thats the best joke i´ve ever heard :)
The Galaxy is anything but good sounding. From my experience the Iphone series can beat any phones out there when it comes to sound quality. They sound very neutral and wide and will pair perfectly with more expensive IEMs especially those with warm sound signature.