Acer Iconia One 8 B1-820 official Pictures. Acer Iconia One 8 B1-820 is a Smartphone of acer. The Acer Iconia One 8 B1-820 Android Tablet. Announced Apr 2015. Features 8.0″ Display, Intel Atom Z3735G Chipset, 5 MP Primary Camera, 4550 MAh Battery, 32 GB Storage, 1000 MB RAM. Acer Iconia One 8 B1-820 price starts.