Samsung galaxy s duos 2 is a good mobile but its so hanging.its back up is not so effucient and not well working speed.carema is so good amd compact.this is so good pic.its have 5 mp carema and 2mp carema in front.its have 1 gb ram and 4 gb rom.its looks is not s good as usally same as normal samsung mobile.its software is not so good operating.this is so hanging and when play game its hang.when u update software, it also hanged.its battery will die after one year.not give so reliabling and sevice of samsung care so laxy and there are lot of issue in samsung care.long line in service centre and slow worker work so lazy