Hi friend I am tell you about samsung galxy s4 it have 2gb ram and 16 gb internal storage and also have android 4.2.2(jelly bean) and quad-core 1.6GHz Cortex-A15 & quad-core 1.2 GHz Cortex-A7 Os android os and 13 mega pixel camera with led flash now lets talk about reviews friends when you run game in this phone this phone too much heet and hanging and camera quilty is good but phone design is not well and also bettray backup is poor.