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Nokia N81 8GB vs Nokia N90

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Nokia N81 8GB Remove phone

Posted: 29 Aug 2007
Market Status: Released
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Nokia N90 Remove phone

Posted: 27 Apr 2005
Market Status: Released

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Design
Device typeSmart phoneSmart phone 
OSSymbian (9.2) S60 3rd Edition, Feature Pack 1Symbian (8.1) 
Dimensions4.01 x 1.96 x 0.70 inches (102 x 50 x 17.9 mm)4.42 x 2.05 x 0.96 inches (112 x 52 x 24 mm) 
Weight4.93 oz (140 g)
the average is 4.8 oz (138 g)
6.10 oz (173 g)
the average is 4.8 oz (138 g)
 
Display
Physical size2.4 inches  
Resolution240 x 320 pixels352 x 416 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.

TFTTFT 
Colors16 777 216262 144 
Additional display

Additional display - Shows specs of the phone's additional display

 TFT 
Resolution

Resolution - Refers to the width and the length od the additional display

 128 x 128 pixels 
Colors

Colors - Shows the number of colors that the additional display supports

 65 536 
Camera
Camera2 megapixels2 megapixels 
FlashYesYes 
FeaturesDigital zoomAutofocus, Exposure compensation, White balance presets, Digital zoom, Night mode, Self-timer 
Camcorder640x480 (VGA) (15 fps)Yes 
FeaturesVideo callingVideo calling 
Front-facing cameraYes  
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 storage8 GB0.035 GB 
Storage expansion RS-MMC 
Battery
Talk time4.00 hours
the average is 12 h (690 min)
3.00 hours
the average is 12 h (690 min)
 
Stand-by time17.0 days (408 hours)
the average is 20 days (488 h)
12.0 days (288 hours)
the average is 20 days (488 h)
 
Talk time (3G)3.00 hours
the average is 15 h (915 min)
  
Capacity1050 mAh760 mAh 
specifications continue after the ad
Multimedia
RadioFM, Stereo, Visual Radio  
Internet browsing
BrowserS60 OSS Browser  
Technology
GSM850, 900, 1800, 1900 MHz900, 1800, 1900 MHz 
UMTS2100 MHz2100 MHz 
DataEDGE, UMTSUMTS, EDGE 
Connectivity
Bluetooth2.0, EDR1.2 
Wi-Fi802.11 b, g  
USBUSB 2.0USB 2.0 
ConnectormicroUSBProprietary 
FeaturesMass storage device  
OtherUPnP, Computer sync, SyncML, VoIPComputer sync, SyncML 
Other features
NotificationsMusic ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Phone profiles, SpeakerphoneMusic ringtones (MP3), Polyphonic ringtones (64 voices), Phone profiles, Speakerphone 
OtherVoice dialing (Speaker independent), Voice commands, Voice recording, Push-to-Talk, PresenceVoice dialing (Speaker independent), Voice commands, Voice recording, Push-to-Talk 
Availability
Officially announced29 Aug 200727 Apr 2005 

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

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