Lava Z90 official Pictures. Lava Z90 is a Smartphone of lava. The Lava Z90 Android Smartphone. Announced Sep 2017. Features 5.2″ Display MT6737 Chipset Dual: 8 MP (f/2.0 AF) + 2 MP Primary Camera 8 MP Front Camera 2750 MAh Battery 32 GB Storage 3 GB RAM Corning Gorilla Glass 3. Lava Z90 price starts.