Plum Axe 4 official Pictures. Plum Axe 4 is a Smartphone of plum. The Plum Axe 4 Android Smartphone. Announced Dec 2017. Features 4.0″ Display, Spreadtrum SC7731C Chipset, 5 MP Primary Camera, 2 MP Front Camera, 1400 MAh Battery, 8 GB Storage, 512 MB RAM. Plum Axe 4 price starts.