Samsung Galaxy s duaos is a worst product made by Samsung company. First of all it’s display is very small. Second screen resolution is week. Third it has so many problems in this mobile phone. I use this mobile before 4 year ago. I know very well about this phone. Not too much memory space in this phone. When you use this phone it has hang problem too much. Camera also not good. Phone memory is a big problem. Battery backup is not good. Battery down within two to three hours. I don’t like this product that’s why I sell it. I bought this phone in 7000rs this is too much costly. Network problem is also in this phone.I don’t preferred this phone to buy.