N91
The Nokia N91 is a mobile phone that was released to the public in April of 2006. It is part of the Nokia Nseries range of mobile phone. It features a 2-megapixel camera and a 4GB (8GB in the "new" 2006 version) hard disk to store approximately 3,000 songs encoded in either AAC, AAC+, eAAC+, MP3, mp3PRO, WAV, MIDI, or Microsoft's WMA format. It also features 3G and wi-fi technology. The phone features a 176 x 208, 262,144 colours TFT LCD display and dedicated music functionality buttons (XpressMusic) that slide down to reveal traditional mobile phone keys.
The phone features a new version of the Symbian Series 60 Operating System. It was the first phone with this version (Symbian version 9.1, Series 60 version 3.0). In the adverts for this phone, it clearly stated that, because of its 3.5 mm plug input, Nokia recommends quality headphones made from Bose and Sennheiser.
N91 also comes standard with a full Web browser
There have been a few problems with the N91, namely connecting the phone to an Apple Computer Mac OS X compatible computer.files are often not recognised despite being loaded into the phones hard drive.
N72
The Nokia N72 is one of Nokia's high-end Nseries mobile phones, it is effectively a re-branded Nokia N70 with a reduced feature set. For an Nseries phone its features are quite limited, as it has only a 2MP camera, lacks WiFi, 3G, and runs on Symbian 8.1a operating system.
However, it retains the same edition of the Symbian OS as the N70, as well as a similar set of features.
The Nokia N72 is a feature-rich phone with a 2 megapixel camera, a built-in flash, FM radio, Bluetooth 2.0, digital music player functionality and support for 3D Java games. It also sports Bluetooth 2.0 and USB 2.0 - Pop-Port interface.
It uses the S60 user-interface and the Symbian 8.1a operating system. It is available in two colors namely glossy black and pearl pink.
External Memory
These cards should not be mistaken as RS-MMC cards, which have only 7 contact pins but with the same size and form factor.
Specification Sheet
Feature
Specification
Form factor
Candybar ("Monoblock")
Operating System
Symbian OS (8.1a), S60 Second Edition Feature Pack 3 (v2.8)
Processor
TI OMAP 1710, ARM9 32-bit RISC CPU @ 220 MHz
Memory (RAM)
50MB
GSM frequencies
900/1800/1900 MHz
GPRS
Yes, class 10
EDGE (EGPRS)
Yes, class 10
WCDMA
No
Main screen
TFT Matrix, 262,144 colours, 176x208 pixels
Camera
2.0 Megapixels w/LED flash, 20x digital zoom
Video recording
Yes, CIF
Multimedia Messaging
Yes
Java support
Yes, MIDP 2.0
Built-in memory
32 MB
Memory card slot
Yes, DV RS-MMC/MMCmobile
Bluetooth
Yes V2.0
Infrared
No
Data cable support
Yes
Browser
WAP 2.0 XHTML / HTML
Email
Yes
Music player
Yes, stereo w/bass from headphones
Radio
Yes
Video Player
Yes
Polyphonic tones
Yes, 64 chords
Ringtones
Yes,Mp3,wav,MIDI tones,AMR,(NB-AMR),True Tones,WAV,AAC
HF speakerphone
Yes
Offline mode
Yes
months trial)



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