Irbis Tz831 OS: Android 7.0 Nougat; CPU: ARM Cortex-A7; CPU frequency: 1300.0 MHz (4-core); Chipset: Spreadtrum SC7731G; GPU: ARM Mali-400 MP2; GPU frequency: 400.0 MHz (2-core); RAM Memory: 1 GB; Display: LCD IPS Color (16M), 1280x800 px (8.0") 189ppi; Touch sc...