... ZP300+ Field smart phone, 4.5 inch IPS screen, 178° wide angle; Retina screen, 326 PPI; 1280 x 720 pixels resolution, 16000K ... 4GBRAM 1GBScreenDisplay Size 4.5 InchType IPS screen, 178° vision angle; Retina screen, 326PPIResolution 1280 x 720 pixels HD screenScreen Color ...