I have use this Samsung galaxy S duos mobile. This mobile have the highest price when compare to the other mobiles.this mobile have battery problem and hanging problem.and also some time this Samsung mobile gets heating problem also.this Samsung mobile has low ram and low internal storage.when you compare with other brands mobile .this Samsung mobile has old ice cream version .and this mobile phone has low battery 1500mah.this phone 4incs ips display.it has 5mp rear camera with led flash light .VGA front camera .and low stroge capacity.but it has good sound clarity .etc.