Nokia has two mobile phones with more or less same technical specifications and features but with some small difference in dimension and with the data input.Both of these mobiles are exclusively designed for business purposes with many features like sending Emails,connecting to the office intranet using phone as modem,built in GPS features and ovi maps to find exact places,Document Viewer for Word,Excel,PPT and pdf available in E66 whereas all these files can also be edited in E71.Nokia E71 comes with Full qwerty keyboard which for some users make the data input very easy as they will already be used to data inputs using keyboard.
E71
E66
Technical Specifications for E71
Size and Weight
dimensions: 114 x 57 x 10 mm
Weight: 127 g
Display Size: 2.36″
Display and 3D
Size: 2.36″
Keys and input method
Full qwerty keyboard
Dedicated one-touch keys: Home, calendar, contacts, and email
Intelligent input with auto-completion, auto-correction and learning capability
Accelerated scrolling with NaviTMKey
Colors and covers
Grey steel
White steel
Security features
Device lock
Remote lock
Data encryption for both phone memory an microsd content
mobile VPN
BATTERY
BP-4L 1500 mAh Li-Po standard battery
Talk time:
GSM up to 10 h 30 min
wcdma up to 4 h 30 min
Standby time:
GSM up to 17 days
WCDMA up to 20 days
wlan idle up to 166 hours
Memory
microSD memory card slot, max. 8 GB
110 MB internal dynamic memory
Data network
GPRS Enabled
Supports WLAN
3g support
GPS and navigation
Integrated a-gps
Ovi Maps application
camera
Photography
3.2 megapixel camera
Image formats: JPEG/EXIF
Video using Main camera
Front camera
Video recording at up to 128 x 96 pixels (QCIF) and up to 15 fps
Music
Music player
Music playback file formats: .mp3, .wma, .aac, AAC+, eAAC+
FM radio 87.5-108 MHz
Others
Resolution: 320 x 240 pixels (QVGA)
Micro-USB connector, full-speed
Supports Email
Supports webbrowsing
Personalization of themes
comparison between E71 and E66
Topic E71 E66
QWERTY keyboard Yes No
Document Viewer Yes Yes
Document Editor Yes No
Weight 127g 121g
Dimension 114 X 57 X 107.5 X
10 mm 49.5X13mm
Five way ScrollKey Yes No
StandByTime 2G 410h 264h
StandByTime 3G 480h 336h
Talk Time 2G 10h 30min 7h 30min
Talk Time 3G 4h 30min 7h 30min
Apart from the above comparison all the other features are same with E71 and E66
Price of E71 is about $448 and E66 is about $475
In india E66 is costing about 18000 and E71 around 16000.
Since E71 is costing less and it also even QWERTY keyboard you can basically go for E71 itself rather than going for E66