The best feature of nokia n 91 mobile is it’s 4GB internal memory. Nokia N 91 Mobile Phone have 2 megapixel digital camera which have 8X zoom and some camera modes for different photos and video. it is also have FM radio. it’s perfect design is also unique, it have sliding cover that protects the keypad.

Nokia N 91 Mobile Phone Technical Specification –

Operating frequency
EGSM/GPRS/900/1800/1900MHz + WCDMA

Display and User Interface
Colour display – 176 x 208 pixels
User interface Series 60 Platform
Music keys

Music
Audio formats
Dedicated playback keys and volume control
Sync with PC
Visual Radio
Record music

Memory
Up to 4GB of internal dynamic memory
Additional 30MB of storage

Video and Camera
2 Megapixel – Digital zoom up to 8x
Video streaming and capture – H.263, MPEG4, Real Video 8
Image viewers – JPEG, GIF 87a/89a, WBMP, BMP, PNG
Download and play video and music
Stream media files
Full-screen video playback

Connectivity
3G
USB
Bluetooth
XHTML browser

General
3GPP video streaming
Speed dialling
Conference call
Java MIDP 2.0
Advanced Series 60 PIM
Voice dialling
Voice commands
Voice recorder
Integrated hands free speaker