Prestigio MultiPhone 3400 Duo official Pictures. Prestigio MultiPhone 3400 Duo is a Smartphone of prestigio. The Prestigio MultiPhone 3400 Duo Android Smartphone. Announced 2013. Features 4.0″ Display, MT6572 Chipset, 3.15 MP Primary Camera, 1500 MAh Battery, 4 GB Storage, 512 MB RAM. Prestigio MultiPhone 3400 Duo price starts.