The E51 is not dissimilar to an E90 minus a QWERTY and some bulk.

Organisation and connection form its mission. With 3G HSDPA, WLAN, and quadband GSM there is no connection it doesn’t support. Email functionality is excellent with support for most platforms. On the organisation front it has a file manager, appointment calendar, and web browser. Office and PDF viewers are great application additions.

The phone is slim and light making it comfortable in any pocket. Its navigation is impressive with a 5-way navigation key providing simple scrolling and selection. It has dedicated email, contacts, calendar, and home shortcut keys. The keys are well proportioned making navigation pleasant in concert with a friendly interface. The phone sports a high-res 2\"LCD display in 16M colours TFT. An ambient-light sensor is a nifty feature, adjusting the LCD’s brightness automatically according to your environment. The E51 has a 2 megapixel camera and video calling capabilities, although the rear camera does make video calling impractical. It’s not the prettiest thing, but we commend it for its ease of use and features.