Asus A501CG runs the android v4.4 (kitkat) (Upgradable to Andriod L)Operating System. It has a 1.6 GHz + Intel Atom Z processor with Intel Hyper threading technology, dual core processor along with 2 gb ram. There is 16GB Internal memory and an expandable memory option of upto 64 GB, MicroSD. The phone has a bar shaped design. Sim card supported is dual sim, GSM+ GSM. The display is a capacitive touch screen. The handset measures Height= mm WIdth=72.8 mm Thickness= mm and is relatively heavy at 145 g. Display The phone has a 12.7 cm display. Resolution of the screen is HD, x 720 pixels. Pixel Density of the display is ~ 294ppi. Camera The camera is supported by a LED flash. Battery and Connectivity This iPhone has a lithium, mah battery. Connectivity features of the phone are GPRS, EDGE, 3G: Yes, 42 mbps HSDPA; 5.76 mbps HSUPA, HSPA+, wifi: b/g/n USB connectivity Bluetooth: supported profiles (a2dp, edr), v4, Navigation Technology: A-GPS, Glonass, with google maps. Miscellaneous Features Asus A501cg-2a508wwe/ A501cg-2a584wwe offers features like call memory, sms memory. Other features include 5 gb free lifetime asus web storage, mirac wi-fi protocol wi-fi support.