HI THERE.
AS PER MY EXPERIENCE ABOUT SAMSUNG GALAXY S DUOS 7562 AND SAMSUNG GALAXY S DUOS 3 BOTH ARE CHEAP AND BEST MOBILE PHONES.
IT COMES IN BUDGET OF MOST OF THE PEOPLES. GALAXY S DUOS IS NOW NOT AVAILABLE IN MARKET BUT SOME OF ONLINE WEBSITES STILL HAVING STOCK AND SELLING. CONFIGURATION AND STORAGE ALSO AMAZING IN AS ITS IN LOW BUDGET.
MADE: SAMSUNG
MODEL: GALAXY S DUOS 7562
INBUILT MEMORY: 4GB
RAM: 768MB
REAR CAMERA: 5MP
FRONT CAMERA: 3MP
3G: YES
SIM TYPE: DUAL GSM+GSM
SCREEN: 4"
OPERATING SYSTEM: ANDROID 4.0+