Intex Aqua 4.0 have Android 2.3.5 Operating System. It is 3G Connectivity, and Dual SIM (GSM+WCDMA), its Processor 800MHz and RAM 256MB, its Screen Size Full Touch 3.5 Inch (8.89cm), internal Memory 131MB, Extended Memory up to 32GB, G-mail and MMS, Camera 3MP (Back) and Secondary camera is 0.3MP(Front), Digital zoom 4X $Video Recording, Bluetooth and Wi-Fi Enabled, Support AS Modem, FM Radio, Video Recording and player, G-sensor