Cat B15 official Pictures. Cat B15 is a Smartphone of cat. The Cat B15 Android Smartphone. Announced 2013. Features 4.0″ Display, MT6577 Chipset, 5 MP Primary Camera, 2000 MAh Battery, 4 GB Storage, 512 MB RAM, MIL-STD-810G Compliant, Corning Gorilla Glass. Cat B15 price starts.