The Nokia E90 is a Quad Band mobile phone with a folding mechanism, and runs on the S60 3.1 edition software based Symbian 9.2 operating system. The 3.2 megapixel camera of the Nokia E90 is enhanced with flash and autofocus, and is accompanied by a QCIF camera for video calling. The Nokia E90 has a music player supporting MP3 and AAC formats, a media player, and an FM radio to provide entertainment on the run. The Nokia E90 has an internal memory of 150 MB, which can be further expanded to 2 GB through a MicroSD memory card. Connectivity tools on the phone include integrated WLAN, mini USB and USB 2.0, Bluetooth 2.0, and infra red.