... TF Card Up to 32GB) GSM / GPRS / EDGE : 850 / 900 / 1800 / 1900 MHz Display Screen: 3.5 Inch HVGA ... Calculator, Calendar, Camcorder, Camera, Clock, Contacts, Dialler, Documents to Go, Email, Facebook, File Browser, Gallery, JAVA ME Apps, ... cannot be upgraded or flashed and any attempts to modify the default OS will void the warranty. ... 416MHz GPS WIFI TV Dual SIM Mobile phone with 3.5" big touch screen