Nokia E52/E55

The Nokia E52 and Nokia E55 are mobile phones from Nokia's business-oriented 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, similar to the SureType keyboard on BlackBerry Pearl, whereas the E52 revision has a traditional T9 keypad.^[5]

Nokia E52 and Nokia E55^[1]

The Nokia E52 (top) and Nokia E55 (below). The E55, despite being a higher number, was announced before the E52.
Manufacturer	Nokia
Series	Nokia Eseries
Availability by region	July 2009[2]
Predecessor	Nokia E51
Successor	Nokia E5-00
Related	Nokia E72 Nokia 6720 classic
Compatible networks	Quad band (GSM / GPRS / EDGE): GSM-850, GSM-900, GSM-1800 and GSM-1900 Dual band (UMTS / HSDPA): UMTS-900 and UMTS-2100 UMTS-850 and UMTS-1900 UMTS-850 and UMTS-2100
Form factor	Candybar phone
Dimensions	116 × 49 × 9.9 millimeters
Weight	98 g
Operating system	S60 3rd Edition, Feature Pack 2 on Symbian OS 9.3
CPU	ARM11; 600 MHz
Memory	60 MB (built-in)
Removable storage	MicroSDHC (up to 32 GB); Hot-swappable
Battery	BP-4L, 3.7V 1500 mAh lithium-polymer
Rear camera	Back-mounted; 3.2 megapixels (2048 × 1536 pixels) with fixed focus (Extended Depth of field) and flash. It supports VGA video recording up to 15fps[3][4]
Front camera	Front-mounted; 0.0768 megapixels (240 × 320 pixels)[3]
Display	240 × 320 pixels, 2.4 inches, 16.7 million colors
Media	MP3, WMA, AAC, AAC+, eAAC+, AMR-NB and audio streaming
Connectivity	Wireless LAN (IEEE 802.11b/g) GPS Assisted GPS Bluetooth v2.0 microUSB 3.5 mm Nokia AV connector
Data inputs	Numeric keyboard and five-way joystick
Other	Firmware Over-The-Air (FOTA) technology Virtual Private Network

They are available in Black, Black Aluminum, Metal Grey aluminium, White Aluminium and Gold. They came with a 1 GB microSD memory card,^[6] but also support microSD cards with up to 32 GB memory. They have 60 MB of free user memory. The E52 is the successor to Nokia's successful E51 model.^[7] The latest firmware version is v091.004, released on June 2, 2012.

The E52 and E55 were, at 9.9 mm thickness, very slim for its time, and feature mostly metallic bodies.^[8][9] Nokia called the E55 the world's thinnest smartphone (it was just 0.1 mm thinner than Nokia E71).^[10] The E55 model has a unique 'compact' QWERTY keyboard featuring two letters in the QWERTY order on a single key.