Sony Ericsson K610i is a slim,elegant, with a back-lit keypad and large screen cell phone ; you can access the most used functions in one or two steps and talk and surf at the same time.The detailed information for the modle as following :

General 2G Network GSM 900 / 1800 / 1900 
3G Network UMTS 2100 
Size Dimensions 102 x 45.2 x 16.9 mm 
Weight 89 g
Display Type TFT, 256K colors
Size 176 x 220 pixels, 1.9 inches, 30 x 37 mm
  - Wallpapers, screensavers
Ringtones Type Polyphonic (72 channels), MP3, AAC
Customization Composer, download,  
Vibration Yes
Memory Phonebook Yes, Photo call
Call records 30 received, dialed and missed calls
Card slot Memory Stick Micro (M2)
  - 16 MB internal memory
 
Data GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps
HSCSD Yes
EDGE No
3G Yes, 384 kbps
WLAN No
Bluetooth Yes, v2.0 with A2DP
Infrared port No
USB Yes, v2.0
Features Messaging SMS, EMS, MMS, Email, Instant Messaging
Browser WAP 2.0/xHTML, HTML(NetFront)
Games Yes + downloadable,  
Colors Evening Red, Urban Silver, Misty White
Camera 2 MP, 1600x1200 pixels, video; secondary video call VGA camera
  - Java MIDP 2.0
- MP3/AAC/MPEG4 player
- Video telephony
- T9
- Image viewer
- Picture editor
- Organiser
- Voice memo
- Built-in handsfree
Battery   Standard battery, Li-Po 900 mAh (BST-37)
Stand-by Up to 400 h
Talk time Up to 7 h