Nokia E66 Grey is a 3G phone that comes with a slide opening casing and in two colour casing options including a grey coloured casing & white steel coloured casing. The Nokia E66 is a member of the popular Nokia E series that measures 107.5mm tall by 49.5mm wide by 13.6mm deep & weighs 121 grams. The phone has slide out numeric keypad & an easy to use Navi key features. The Nokia E66 has built in 110 megabytes memory and it also supports a MicroSD memory card slot that allows the user to expand their phones memory up to 8 gigabytes in size. The E66 works on Symbian 9.2 operating system and comes with fast & useful technologies such as 3G HSDPA technology, HSCSD & EDGE technologies that allow enjoying fast connectivity, Internet & data transfers.