Rs.26,500 The Nokia Lumia 638 comes with a 4.5-inches IPS LCD capacitive touchscreen display resolution of 480 x 854 pixels and 218 PPI – a very nice display. The Nokia Lumia 638 also uses Quad-core 1.2 GHz Cortex-A7 processor which comes with Adreno 305 for graphics rendering. This is a good processor. The Nokia Lumia 638 uses 1GB of RAM and 8GB of internal storage and have a microSD Card slot to add an additional 128GB of memory. Main camera 5MP. Nokia Lumia 638 Phone Specification Status Launch Dimensions Weight Network SIM Available. Released 2014, December Announced 2014, December 129.5 x 66.7 x 9.2 mm (5.10 x 2.63 x 0.36 in) 136 g (4.80 oz) Technology: GSM / HSPA / LTE Micro-SIM Display Protection Platform Chipset CPU GPU IPS LCD, 16M colors; 480 x 854 pixels, 4.5 inches; 218 ppi. Multitouch Corning Gorilla Glass 3, ClearBlack display. OS, Microsoft Windows Phone 8.1 Qualcomm Snapdragon 400 Quad-core 1.2 GHz Cortex-A7 Adreno 305 Memory Card slot Internal Memory Camera Primary Ca...