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Technical details for
Nokia N81 8GBSamsung SGH-X640
Nokia N81 8GBNokia N81 8GB
ManufactureNokiaSamsung
ModelN81 8GBSGH-X640
Form factorSwivelBlock
Weight140 gram85.00
Dimensions (HxWxD)102 x 50 x 1887.00 x 47.00 x 23.00
Operating SystemOtherOther
Networks2G - 850/900/1800/1900
3G - 2100
2G - 900/1800/1900
HSCSDNoNo
GPRSYesYes
EDGEYesNo
UMTSYesNo
HSDPANoNo
HSPA+NoNo
WiMAXNoNo
LTE (4G light)NoNo
WLAN / Wi-FiYesNo
Wi-Fi HotspotNoNo
Wi-Fi DirectNoNo
SMSYesYes
MMSYesYes
EmailYesNo
HDMI outNoNo
USB portNoNo
MHLNoNo
BluetoothYesNo
Bluetooth versionNANA
DLNANoNo
GPSNoNo
GlonassNoNo
ANT+NoNo
IrDANoNo
NFCNoNo
3.5 mm audio connectorNoNo
CameraYesYes
Camera resolution2 Megapixels, 20x digital zoom0.3 Megapixels (640x480), 4x digital zoom
Image StabilizationNoNo
BSI sensorNoNo
Camera Flash/LightYesNo
Flash typeNANA
Video recordingYesNo
Video capture resolutionNANA
Second CameraNANA
Display size2.4 inches0.00
TouchscreenNoNo
Colour displayYesYes
Number of colours1670000065000
Display width240128
Display height320160
PPI166.67NA
Second DisplayNANA
CPUNANA
GPUNANA
Memory18MB internal dynamic + 8GB for media files9.5 MB
Micro SIMNoNo
Dual SIMNoNo
MP3YesNo
Ringtones / Music file formatMP3, AAC, eAAC+, AAC+, WMA, WAVPolyphonic 40 voices
JavaYesYes
GamesSpace Impact Light, Asphalt demo, Fifa Soccer 2007 demo2
FM RadioYesNo
Battery1050 mAhNA
Standby time (h)408220
Talktime (m)240210
Wireless ChargingNoNo
Browser2.0 XHTML2.0
CalendarYesYes
VoicedialingYesNo
IP CodeNANA
Predictive textYesYes
RSS readerNoNo
VoicememoYesYes
PC SynchronizationYesNo
SyncMLNoNo
WebsiteWebsite Website 

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