Nokia Lumia 638 smartphone was launched in June 2014. The phone comes with a 4.50-inch touchscreen display with a resolution of 480 pixels by 854 pixels.
The Nokia Lumia 638 is powered by 1.2GHz quad-core Qualcomm Snapdragon 400 processor and it comes with 1GB of RAM. The phone packs 8GB of internal storage that can be expanded up to 128GB via a card. As far as the cameras are concerned, the Nokia Lumia 638 packs a 5-megapixel primary camera on the rear
The Nokia Lumia 638 runs Windows Phone 8.1 and is powered by a 1830mAh non removable battery. It measures 129.50 x 66.70 x 9.20 (height x width x thickness) .
The Nokia Lumia 638 is a single SIM (GSM) . Connectivity options include Wi-Fi, GPS, Bluetooth, 3G and 4G (with support for Band 40 used by some LTE networks in India).