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Phone Ericsson R520 Siemens CT56 Samsung SGH-D900 / Black Carbon LG Invision
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? 2.2" diag.
4 : 3
Display Resolution & Type ? 101 x 64 pixels 240 x 320 pixels
LCD (TFT/TFD)
320 x 240 pixels
(~182 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? 700 mAh 800 mAh 900 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - 3 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - ? QVGA (320 x 240)
Front Camera - - - -
Weight 4.23 oz
(120g)
2.96 oz
(84g)
3.28 oz
(93g)
2.85 oz
(81g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
3.98" x 1.73" x 0.83"
(101 x 44 x 21.1 mm)
4.07" x 2.01" x 0.51"
(103 x 51 x 13 mm)
4.05" x 2.08" x 0.47"
(103 x 53 x 11.9 mm)
Form Factor Slab Slab Slide Slab
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS GPRS EDGE HSDPA 3.6
Features 
GPS / Location - Yes - -
Accessibility
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - Yes - Yes
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes
HSP, Sync, OPP, DUN
- Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes - - -
USB - Yes Yes Yes
Contacts
Picture ID - - Yes Yes
Ringer ID - - Yes Yes
Voice Dialing Yes Yes - Yes
Customization
Changeable Body Plates - Yes - -
Custom Graphics - Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers - - Yes Yes
Data & Network
Data Tethering Yes Yes Yes -
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes - Yes Yes
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client - - Yes Yes
EMS / Picture Messaging - Yes Yes -
Instant Messaging - - - Yes
MMS - - Yes Yes
Text Messaging Templates Yes - Yes Yes
Music
Music Player - - Yes Yes
Photo & Video
TV Output - - Yes -
Productivity
Alarm Yes - Yes Yes
Calculator Yes - Yes Yes
Calendar Yes - Yes Yes
To-Do List - - Yes -
Voice Memo Yes - Yes Yes
Software
Games Yes - Yes Yes
Java (J2ME) - Yes Yes Yes
Voice
Speaker Phone Yes Yes Yes Yes
  Ericsson R520 Siemens CT56 Samsung SGH-D900 / Black Carbon LG Invision
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Phone Ericsson R520 Siemens CT56 Samsung SGH-D900 / Black Carbon LG Invision

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