Spice stellar 509 is not a good mobile but better than others companies like that huwaei, spice, max, etc. I have bought this mobilr on snapdeal.com only 3 month I have use, then after 3 month many fault has come the spice steller 509 os powered by 1.3GHz quad core and it comes with 1gb RAM.
The internal storage is 4gb and that can be expandable upto 32gb in micro sd card 8 megapixel camera on the rear and the 2 megapixel front shooter for selfie, its camera quality is very cheap. I dont like this mobile