Nokia N81
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Posted: 29 Aug 2007 Announced: 29 Aug 2007
Market Status: Released
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Links: Nokia N81 manual Nokia N81 Official Page

The Nokia N81 is a Symbian smartphone slider, dedicated to music and games. Play the music through the stereo speakers to listen with friends or through headphones attached to the 3.5mm jack for higher quality. If you want to do it without wires, just pair a Stereo Bluetooth device. Rotate the phone in landscape and play games on the 2.4" QVGA display. When it comes to connectivity, you will like the support of 3G (UMTS), WiFi and microUSB.

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8.1 out of 10

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Nokia N81 specifications

Pros

No pros

Cons

Low pixel densitiy screen, below 180ppi (167 ppi)
Slow processor (369 MHz)
Slow data means slow Internet browsing (EDGE, UMTS)
It is so thick it needs a personal fitness trainer (0.70 inches)
Low resolution display (240 x 320 pixels)
Lacks global positioning system (GPS)
Too little RAM memory (96 MB RAM)
Low-resolution camera (2 megapixels)
The camera lacks autofocus
Low-resolution video capture
Lacks an ambient light sensor for automatic screen brightness adjustment

Design

Device type:
- Smart phone
OS:
- Symbian (9.2) S60 3rd Edition, Feature Pack 1
Form factor:
Form factor - Refers to the form factor of a phone. The main handset designs are bar, clamshell, slide, swivel
- Slider
Dimensions:
- 4.01 x 1.96 x 0.70 (102 x 50 x 17.9 mm)
Weight:
- 4.93 oz (140 g)
  the average is 4.2 oz (120 g)

Display

Physical size:
- 2.40 inches
Resolution:
- 240 x 320 pixels
Pixel density:
Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.
- 167 ppi
Technology:
Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.
- TFT
Colors:
Colors - Shows the number of colors that the display supports
- 16 777 216

Battery

Talk time:
Talk time - Maximum talk time in hours
- 4.00 hours
  the average is 8 h (497 min)
Stand-by time:
- 17.0 days (408 hours)
  the average is 21 days (496 h)
Talk time (3G):
- 3.00 hours
Capacity:
- 1050 mAh

Hardware

Processor:
Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.
- Single core, 369 MHz, ARM11
System memory:
System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.
- 96 MB RAM / 128 MB ROM
Built-in storage:
- 12 MB
Storage expansion:
- Slot Type:
  - microSD

Camera

Camera:
- - 2 megapixels
- Flash:
  - Yes
- Features:
  - Digital zoom
Camcorder:
- - 320x240 (QVGA) (15 fps)
- Features:
  - Video calling
Front-facing camera:
- Yes

Multimedia

Radio:
- - FM, Stereo, Visual Radio

Internet browsing

Browser:
- - S60 OSS Browser
- Supports:
  - HTML, XHTML, WAP 2.0, Flash Lite

Technology

GSM:
GSM - Global System for Mobile communications. A world standard for digital cellular communications using narrowband TDMA (Time Division Multiple Access), which allows up to eight calls at a time on 800 MHz and 1800 MHz frequencies. Introduced in 1991. Is the standard most commonly used in Europe and Asia, but not in the United States. GSM phones use a Subscriber Identity Module (SIM) smart card that contains user account information. Any GSM phone becomes immediately programmed after plugging in the SIM card, thus allowing GSM phones to be easily rented or borrowed.
- 850, 900, 1800, 1900 MHz
UMTS:
UMTS - Universal Mobile Telecommunications Service, also called WCDMA, is a 3G (Third Generation) packet-based transmission of text, digitized voice, video, and multimedia at data rates up to 2 Mbps. It is based on GSM standard and is supported by major standards bodies and manufacturers
- 2100 MHz
Data:
Data - Shows the particular phone's type of data. the major mobile phone data types are GPRS, CDMA2000 1xRTT, EDGE, CDMA2000 1xEV-DO, UMTS, etc.
- UMTS, EDGE

Phone features

Phonebook:
- Unlimited entries, Multiple numbers per contact, Picture ID, Ring ID
Organizer:
- Calendar, Alarm, To-Do, Calculator, Notes
Messaging:
- SMS, MMS (T9), Predictive text input
E-mail:
- - IMAP, POP3, SMTP

Connectivity

Bluetooth:
- - 2.0, EDR
Wi-Fi:
Wi-Fi - Wireless Local Area Network (WLAN) - used radio waves (RF) or infrared signals to send and receive data over the air. Most popular WLAN solutions today is Wi-Fi (802.11b and 802.11g) standards. 801.11b provides data speeds of around 11mbps while 802.11g can go up to 54 mbps.
- - 802.11 b, g
USB:
- - USB 2.0
- Connector:
  - microUSB
- Features:
  Features - Universal Serial Bus - is a plug-and-play interface for connection a computer and add-on devices such as joysticks, keyboards, wireless phones, scanner, cameras etc. USB supports hot-swap (ability to add a new device without having to reboot the computer). USB supports data speed of 12 megabits per second.
  - Mass storage device
- UPnP, Computer sync, SyncML, VoIP

Other features

Notifications:
- Music ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Phone profiles, Speakerphone
- Voice dialing (Speaker independent), Voice commands, Voice recording, Push-to-Talk, Presence

Availability

Officially announced:
- 29 Aug 2007

To see the full specifications with in-depth details click here.

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