Nokia Lumia 638 is an Windows Phone 8.1 Smartphone from Nokia. It comes with 1.2 GHz Quad Core Processor and 5 MP Auto focus Camera. Nokia Lumia 638 has 4.5-inch IPS LCD capacitive touch screen of resolution 480x854 pixels. It contains a full QWERTY keyboard. Well, a bigger screen with a higher resolution would better show off and make web-browsing enjoyable.