Karbonn W wind 4 is a window phone .it is a use less phone .it has windows 8.1 . It has 512 mb ram and 4 GB internal memory.
Karbonn W Wind4’s features are :
Window 8.1
Camara 3.0 mp without flash
Frount camara 0.3 Mp
4 512 MB Ram and 4 GB internal nemory
32 GB Expondable memory
Screen size 4.5 inch