The Nokia E52 and Nokia E55 are smartphones from Nokia's Eseries range. They run Symbian OS v9.3 (S60 3rd Edition FP1). The E55 was announced on 16 February 2009, whilst the E52 was announced later on 6 May 2009. They are both physically and functionally identical, except that the E55 has a 'half-QWERTY' keyboard, whereas the E52 revision has a traditional T9 keypad.They are available in Black, Black Aluminum, Metal Grey aluminium, White Aluminium and Gold.