Polytron P520 Prime 7s OS: Android 6.0 Marshmallow; CPU: Helio P10; CPU frequency: 2000.0 MHz (8-core); RAM Memory: 3 GB; Display: LCD IPS Color (16M), 1080x1920 px (5.2") 424ppi; Touch screen: yes; Built-in memory: 64 GB; Memory card: MicroSD/TransFlash max. 128 GB; Camer...