Key features:
Quad-band GSM support
3G support
Landscape 2.36″ 16M-color display of QVGA resolution
Symbian 9.2 OS, S60 UI with FP1 (sprinkled with some FP2)
369 MHz ARM 11 CPU and 128 MB of SDRAM
Wi-Fi
2 megapixel fixed focus camera with LED flash
120 MB of internal memory, microSD expansion
Standard 3.5mm audio jack
Bluetooth v2.0 with A2DP support
microUSB v2.0
FM radio
Comfortable full QWERTY keypad
Convenient shortcut keys
Provider-independent VoIP support
Office document editor
Nokia Maps
User-friendly Mode Switch for swapping two homescreen setups
Great battery life
Remote Lock and Wipe feature
One-year free subscription for Files on Ovi

Main disadvantages:
Poor camera performance
Video recording maxes out at QVGA@15fps
No GPS
No RDS in the FM radio
3.5mm jack protective bud is not attached to the body
No USB cable in the retail package
No preinstalled games at all
Nokia E63 is undoubtedly a trimmed-down version of the E71 and almost a return to the E61i roots – with a 2 megapixel camera and no built-in GPS receiver. Well, the camera of the E71 was largely disappointing in the first place plus, an external Bluetooth GPS receiver is always an option, so we hardly count these as serious drawbacks.

read more:
www.gsmarena.com: nokia e63 spec
www.gsmarena.com: nokia e63 review