C6 has a elegant design but keep in simple with very nice QWERTY Keyboard slider. It was a bit pitty has a resistive touchscreen on 3.2 inches color display. Symbian S60 make little problem to run this device. According to some reviews, it has a "hang" problem, sometime when runs some multitasking feature. It seems Upgrade software is the only one solution of this Nokia C6's hang problem.
Nokia C6 GSM Specifications:
Network: GSM EDGE 850 / 900 / 1800 / 1900, 3G HSDPA 900 / 1900 / 2100 Mhz
Operating System : Symbian OS v9.4, Series 60 rel. 5
Processor : 434 MHz ARM 11 processor
Display : TFT resistive touchscreen, 16M colors, 360 x 640 pixels, 3.2 inches
QWERTY keyboard, Proximity sensor, Accelerometer
3.5mm jack
Internal Memory : 240 MB
External slot : microSD, up to 16GB, 2GB included, buy memory
Camera : 5 MP, 2592 x 1944 pixels, autofocus, LED flash, Geo-tagging, recording video 30fps
Secondary camera : QVGA
Connectivity : WLAN Wi-Fi 802.11 b/g, Bluetooth v2.0 with A2DP, 2.0 microUSB
Messaging SMS, MMS, Email, Push Email, IM, Yahoo! Messenger, Google Talk, Windows Live Messenger
Browser WAP 2.0/xHTML, HTML, RSS feeds
GPS : A-GPS support
Java : Yes, MIDP 2.1, games, apps
Music : Radio Stereo FM radio with RDS, MP3/WMA/WAV/eAAC+ player
Video : MP4/H.264/WMV player
113 x 53 x 16.8 mm, 80 cc
Nokia C6 run on GSM, and 3G HSDPA network on multiband GSM 800, 850, 1800 and 1900 Mhz frequency. It also has 5MP camera onboard, Wi-fi B/G/N, PCSuite connectivity and support for Assisted-GPS module on the go.