x PhoneArena is hiring! Reviewer in the USA

Nokia N81 vs Nokia 3100 / 3120 Size compare


Nokia N81 Remove phone

Posted: 29 Aug 2007
Market Status: Released

Nokia 3100 / 3120 Remove phone

Posted: 16 Sep 2003
Market Status: Released

Add phone to compare

Device typeSmart phone  
OSSymbian (9.2), S60 3rd Edition, Feature Pack 1  
Dimensions4.01 x 1.96 x 0.70 inches (102 x 50 x 17.9 mm)4.01 x 1.68 x 0.60 inches (102 x 43 x 15 mm) 
Weight4.93 oz (140 g)
the average is 5.2 oz (149 g)
2.99 oz (85 g)
the average is 5.2 oz (149 g)
FeaturesNumeric keypad, Music control keys, Soft keysExchangable faceplates, Numeric keypad, Soft keys 
Physical size2.4 inches  
Resolution240 x 320 pixels128 x 128 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 - 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.

Screen-to-body ratio35.18 %  
Camera2 megapixels  
Software FeaturesDigital zoom  
Camcorder320x240 (QVGA) (15 fps)  
FeaturesVideo calling  
Front-facing cameraYes  

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 storage0.012 GB  
Storage expansionmicroSD  
Capacity1050 mAh850 mAh 
TypeUser replaceable, Li - IonUser replaceable, Li - Ion 
Talk time4.00 hours
the average is 15 h (874 min)
6.00 hours
the average is 15 h (874 min)
Stand-by time17.0 days (408 hours)
the average is 15 days (365 h)
17.1 days (410 hours)
the average is 15 days (365 h)
Talk time (3G)3.00 hours
the average is 17 h (1012 min)
Music playback11.50 hours  
specifications continue after the ad
RadioFM, Stereo, Visual Radio  
GSM850, 900, 1800, 1900 MHz850, 1800, 1900 MHz 
UMTS2100 MHz  
Other Other version supports GSM 900/1800/1900 MHz 
Phone features
NotificationsMusic ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Phone profiles, SpeakerphoneVibration, Phone profiles, Speakerphone 
Other featuresVoice dialing (Speaker independent), Voice commands, Voice recording, Push-to-Talk, PresenceTTY/TDD 
Bluetooth2.0, EDR  
Wi-Fi802.11 b, g  
USBUSB 2.0  
FeaturesMass storage device  
OtherUPnP, Computer sync, SyncML, VoIPComputer sync 
Officially announced29 Aug 200716 Jun 2003 
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 200716 Sep 2003 
FCC ID value: OW3RM-256 linkFCC ID value: PPIRH-50 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).

Head0.73 W/kg1.17 W/kg 
Measured in1900 MHz1900 MHz 
Body0.40 W/kg1.06 W/kg 
Measured in1900 MHz1900 MHz 
Head0.81 W/kg  

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

Latest stories