Plum Optimax 10 official Pictures. Plum Optimax 10 is a Smartphone of plum. The Plum Optimax 10 Android Tablet. Announced Mar 2016. Features 10.1″ Display, MT8321 Chipset, 5 MP Primary Camera, 2 MP Front Camera, 4500 MAh Battery, 8 GB Storage, 1000 MB RAM. Plum Optimax 10 price starts.