Celkon A403 official Pictures. Celkon A403 is a Smartphone of celkon. The Celkon A403 Android Smartphone. Announced Aug 2015. Features 4.0″ Display Spreadtrum SC7715 Chipset 3.15 MP Primary Camera 1.3 MP Front Camera 1400 MAh Battery 4 GB Storage 512 MB RAM. Celkon A403 price starts.