the samsung galaxy grand is a smartphone developed by samsung electronics, first announced on december 18, 2012. the phone has a dual core cortex-a9 1.2 ghz processor and a ram of 1 gb, with an internal memory of 8 gb which can be extended to another 64 gb by use of microsd cards. the device also supports internet connectivity through 2g and 3g, apart from wi-fi. navigation systems including a-gps and glonass with google maps. the phone runs on the android 4.1.2 (jelly bean) os, with samsung releasing updates up to 4.2.2. however, custom roms are available up to android 8.