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Nokia N81

Nokia N81
2.4"
240 x 320 pixels
2 MP
RAM: 0.4375 GB
BATTERY: 1050 mAh (3.00h 3G talk time)
MEMORY: 0.012 GB
Announced: Aug 29, 2007
Market status: Released
Features: Fingerprint Lightweight Thin LTE Rugged NFC Dual SIM

Pros

No pros

Cons

  • Thick body (0.70 inches inches)
  • The camera lacks autofocus
  • Does not support automatic screen brightness
  • Too little RAM memory (0.4375 GB RAM)
  • Single-core processor
  • Low pixel density screen (167 ppi)
  • Low-resolution camera (2 megapixels)
  • Does not support fast data speeds (UMTS)
  • Lacks GPS

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Description

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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Design

  • Device type:
    • Smart phone
  • OS:
    • Symbian (9.2), S60 3rd Edition, Feature Pack 1
  • Dimensions:
    • 4.01 x 1.96 x 0.70 inches (102 x 50 x 17.9 mm)
  • Weight:
    • 4.93 oz (140 g)
      the average is 5.3 oz (150 g)
  • Features:
    • Numeric keypad, Music control keys, Soft keys

Display

  • Physical size:
    • 2.4 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
  • Screen-to-body ratio:
    • 35.18 %

Camera

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

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.

    • 0.4375 GB RAM / 128 MB ROM
  • Built-in storage:
    • 0.012 GB
  • Storage expansion:
    • microSD

Battery

  • Capacity:
    • 1050 mAh
  • Type:
    • User replaceable, Li - Ion
  • Talk time:
    • 4.00 hours
      the average is 15 h (876 min)
  • Stand-by time:
    • 17.0 days (408 hours)
      the average is 16 days (377 h)
  • Talk time (3G):
    • 3.00 hours
      the average is 17 h (991 min)
  • Music playback:
    • 11.50 hours

Multimedia

  • Radio:
      • FM, Stereo, Visual Radio

Cellular

  • GSM:
    • 850, 900, 1800, 1900 MHz
  • UMTS:
    • 2100 MHz
  • Data:
    • UMTS

Phone features

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

  • Bluetooth:
      • 2.0, EDR
  • Wi-Fi:
      • 802.11 b, g
  • USB:
      • USB 2.0
    • Connector:
      • microUSB
    • Features:
      • Mass storage device
  • Other:
    • UPnP, Computer sync, SyncML, VoIP

Availability

  • Officially announced:
    • 29 Aug 2007

Regulatory Approval

  • FCC approval:

    FCC approval - The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that is sold in the U.S. has to be tested and approved for sale by the FCC.

    • Date approved:

      Date approved - Shows the date when the particular phone is approved by the Federal Communications Commission

      • 17 Sep 2007
      • FCC ID value:

        FCC ID value - Shows the FCC Identifying value of the particular phone

        OW3RM-256 link
  • FCC measured SAR:

    FCC measured SAR - Working closely with federal health and safety agencies, such as the Food and Drug Administration (FDA), the FCC has adopted limits for safe exposure to radiofrequency (RF) energy. These limits are given in terms of a unit referred to as the Specific Absorption Rate (SAR), which is a measure of the amount of radio frequency energy absorbed by the body when using a mobile phone. The FCC requires cell phone manufacturers to ensure that their phones comply with these objective limits for safe exposure. Any cell phone at or below these SAR levels (that is, any phone legally sold in the U.S.) is a "safe" phone, as measured by these standards. The FCC limit for public exposure from cellular telephones is an SAR level of 1.6 watts per kilogram (1.6 W/kg).

    • Head:
      • 0.73 W/kg
    • Measured in:
      • 1900 MHz
    • Body:
      • 0.40 W/kg
    • Measured in:
      • 1900 MHz
  • EU SAR:
    • Head:
      • 0.81 W/kg

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


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