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Phone Casio G'zOne Rock Ericsson T66 BlackBerry 8700 Samsung SGH-X820
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
? ? ?
Display Resolution & Type 240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
? 320 x 240 pixels
LCD (TFT/TFD)
220 x 176 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 1,150 mAh ? 1,100 mAh 650 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 2 megapixel - - 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? - - ?
Front Camera - - - -
Weight 4.4 oz
(125g)
2.08 oz
(59g)
4.7 oz
(133g)
2.33 oz
(66g)
Dimensions 4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
4.3" x 2.7" x 0.8"
(109 x 69 x 20.3 mm)
4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) BlackBerry OS (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology EVDO rA - EDGE EDGE
Features 
Flashlight Yes - - -
GPS / Location Yes - n/a -
Ruggedized Yes - - -
Water-Resistant Yes - - -
Accessibility
Hearing Aid Compatible Yes - - -
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes - Yes -
Alerts
Extra Display Yes - - -
Ringer Profiles - Yes Yes -
Connectivity
Bluetooth Yes - Yes Yes
USB Yes - Yes Yes
Contacts
Picture ID Yes - n/a Yes
Ringer ID Yes - n/a Yes
Voice Dialing Yes - n/a -
Customization
Custom Graphics Yes Yes n/a Yes
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers Yes - n/a Yes
Data & Network
Data Tethering Yes - n/a -
External Antenna Jack - - n/a Yes
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Memory
Memory Card Slot Yes - - -
Messaging
Email Client Yes - n/a Yes
EMS / Picture Messaging - Yes n/a Yes
Instant Messaging Yes - n/a -
MMS Yes - n/a Yes
Text Messaging Templates Yes Yes n/a Yes
Music
Music Player Yes - n/a -
Photo & Video
TV Output - - - Yes
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a Yes
Calendar Yes Yes n/a Yes
To-Do List - Yes n/a Yes
Voice Memo Yes - n/a Yes
Software
BREW Yes - n/a -
Games Yes Yes n/a Yes
Java (J2ME) - - n/a Yes
Voice
Headset Jack (2.5 mm) Yes - n/a -
Push-To-Talk Yes - - -
Speaker Phone Yes - Yes Yes
  Casio G'zOne Rock Ericsson T66 BlackBerry 8700 Samsung SGH-X820
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Casio G'zOne Rock Ericsson T66 BlackBerry 8700 Samsung SGH-X820

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