which one better for ppsspp iphone5 xperia z or s4 ?

[Merivex]

hi mates pls helpme i iwill buy new device at next month and my first priorty is gaming and i like much better xperia z thn other 2.but if other devices better thn z for ppsspp i will buy it.i love ppsspp emu. pls helpme

I already buy S4 I9500 and I recommend u to buy that phone rather than xperia Z (y)