The sound quality seems the same to me...nothing near audiophile quality, but good enough to use. Only thing I've really found different is the sound output is noticeably lower with my 7 and Lightning earpods vs. my 6 and 3.5mm earpods. The new setup just doesn't get as loud as the old one did. I usually only wear headphones while doing yard work and now the music barely drowns out my weedeater and is no match for the riding mower. I can't be sure if its the phone, the headphones, or the combo, but either way it presents an issue if you're looking for volume.