Spice mi509 is good smartphone under 4999. It has 5 inch screen size, 1gb ram 8megapixel back camera this camera is not very good ; 2.0 megapixel front camera.
It is best phone but you can also buy in the range of 4999 the many best Android smartphone it battery capacity is low 2000 mah battery . You can buy this phone on flipkart in the range 4999.