It includes 4.2 android operating system. Sound quality is good and also sound reception during is good but still not comparable to Sony and Samsung mobiles. It performs better while using Internet on WiFi network. Corners are round shape and has still finish border. Phone includes 1 GB ram and 4 GB internal memory for user. Primary camera - 8 MP and front camera - 2 MP. 2000 mAh battery will not disappoint you. Con with phone is, It has weak hardware quality, Glass is not so strong.