Nokia n81
General     2G Network     GSM 850 / 900 / 1800 / 1900
3G Network     UMTS 2100
Announced     2007, August
Status     Available. Released 2007, November
Size     Dimensions     102 x 50 x 17.9 mm, 86 cc
Weight     140 g
Display     Type     TFT, 16M colors
Size     240 x 320 pixels, 2.4 inches
     - Touch-sensitive Navi wheel
Sound     Alert types     Vibration; Downloadable polyphonic, monophonic, MP3 ringtones
Speakerphone     Yes
     - 3.5 mm audio jack
Memory     Phonebook     Practically unlimited entries and fields, Photocall
Call records     Detailed, max 30 days
Internal     12 MB storage, 96 MB RAM
Card slot     microSD (TransFlash), up to 8GB, hotswap, 2 GB card included, buy memory
Data     GPRS     Class 10 (4+1/3+2 slots), 32 - 48 kbps
HSCSD     Yes
EDGE     Yes
3G     Yes, 384 kbps
WLAN     Wi-Fi 802.11b/g with UPnP
Bluetooth     Yes, v2.0 with A2DP
Infrared port     No
USB     Yes, v2.0 microUSB
Camera     Primary     2 MP, 1600x1200 pixels, LED flash
Video     Yes, QVGA@15fps
Secondary     CIF videocall camera
Features     OS     Symbian OS 9.2, Series 60 v3.1 UI
CPU     ARM 11 369 MHz processor
Messaging     SMS, MMS, Email, Instant Messaging
Browser     WAP 2.0/xHTML, HTML
Radio     Stereo FM radio; Visual radio
Games     Yes + Java downloadable, N-Gage compatible
Colors     Cobalt blue, Graphite grey
GPS     No
Java     Yes, MIDP 2.0
     - MP3/AAC/MPEG4 player
- T9
- Push to talk
- Voice dial/memo
- Organizer
Battery           Standard battery, Li-Po 1050 mAh (BT-6MT)
Stand-by     Up to 410 h
Talk time     Up to 4 h (2G) / 3 h (3G)