Samsung GAlaxy Grand Prime 4G, phone is a good phone, its come with 5 inch display and 1Gb RAm, with 8GB rom, and processor used in this phone 1.2 GHz quad core.
and OS android v4.4.4 [kitkat] and rear camera is 8 8mp, and front camera 5mp rear camera is auto focus, with LED flash, both cameras quality is very good, phone sound quality also good, this mobile can support USB OTG so you can connet pen drive also,
and mobile battery capacity is 2600 mah, its not so bad but not great, and mobile design is good but not so atractive,
I would say not bad phone but not value for money at this price