Panasonic T21 official Pictures. Panasonic T21 is a Smartphone of panasonic. The Panasonic T21 Android Smartphone. Announced Q3 2013. Features 4.5″ Display, 8 MP Primary Camera, 2 MP Front Camera, 1700 MAh Battery, 4 GB Storage, 1000 MB RAM. Panasonic T21 price starts.