Galaxy S5 has almost two times stronger battery than iPhone 5S.
Galaxy S5 battery has 2800 mAh and lasts 390h in Stand-by, 21h while talking, 67h while playing music. iPhone 5S battery has 1560 mAh, it's not removable, lasts 250h on Stand-by, 10h while talking and 40h while playing music.
Link and Link.
[Edited by LoopDaLoop, 8/14/2014 9:11:16 PM]