I never open the headphones that come with my phones because I have amazing Bose in-ear headphones that I use 100% of the time (and also because I like all my accessories to be unopened [including the charger and USB cable, if possible] to increase the resale value); However, from what I've read, the Galaxy S5's included headphones are unanimously crappy. It also seems to be the general consensus that the EarPods that come with the new iPhones are decent, not great, but better than the S5 headphones. The best included headphones that you're going to find are the Harmon Kardon headphones that come with the black and gold Harmon Kardon edition of the Sprint HTC One M8.