Allview P4 Duo official Pictures. Allview P4 Duo is a Smartphone of allview. The Allview P4 Duo Android Smartphone. Announced Oct 2012. Features 4.3″ Display, 8 MP Primary Camera, 1600 MAh Battery, 4 GB Storage, 512 MB RAM, Corning Gorilla Glass. Allview P4 Duo price starts.