Tecno Phantom 8 official Pictures. Tecno Phantom 8 is a Smartphone of tecno. The Tecno Phantom 8 Android Smartphone. Announced Apr 2018. Features 5.7″ Display MT6757T Helio P25 Chipset 3500 MAh Battery 64 GB Storage 6 GB RAM Corning Gorilla Glass 3. Tecno Phantom 8 price starts.