www.flipkart.com/asus-zenfone-4-a400cxg/p/itmeygpv4uxt4gjx Key Features of Asus Zenfone 4 A400CXG Intel Atom Processor with Hyper-Threading Technology 1 GB RAM 4-inch Capacitive Touchscreen Expandable Storage Capacity of 64 GB Android v4.3 (Jelly Bean) Upgradeable to v4.4 (KitKat) OS 5 MP Pixel Master Camera with Auto Focus