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Phone Motorola i450 / i455 Samsung M520 Casio G'zOne Rock
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 2.1" diag.
4 : 3
2.1" diag.
4 : 3
Display Resolution & Type 130 x 130 pixels
LCD (STN)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery ? ? 1,150 mAh
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera - 1 megapixel 2 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture - ? ?
Front Camera - - -
Weight 4.5 oz
(128g)
2.75 oz
(78g)
4.4 oz
(125g)
Dimensions 3.5" x 2" x 1.1"
(89 x 51 x 27.9 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
Form Factor Clamshell Slide Clamshell
Platform / OS (proprietary) (proprietary) (proprietary)
Network Bands

iDEN: 800

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology - EVDO r0 EVDO rA
Features 
Flashlight - - Yes
GPS / Location Yes Yes Yes
Ruggedized - - Yes
Water-Resistant - - Yes
Accessibility
Hearing Aid Compatible Yes Yes Yes
Multiple Languages Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes
Alerts
Extra Display Yes - Yes
Ringer Profiles Yes - -
Connectivity
Bluetooth - Yes Yes
USB Yes Yes Yes
Contacts
Picture ID Yes Yes Yes
Ringer ID Yes Yes Yes
Voice Dialing Yes Yes Yes
Customization
Custom Graphics Yes Yes Yes
Custom Ringtones Yes Yes Yes
Real-Music Ringers Yes * - Yes
Data & Network
Data Tethering Yes Yes Yes
WAP / Web Browser Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes
Side Keys Yes Yes Yes
Memory
Memory Card Slot - Yes Yes
Messaging
Email Client - - Yes
Instant Messaging - - Yes
MMS Yes - Yes
Text Messaging Templates Yes Yes Yes
Music
Music Player - Yes Yes
Productivity
Alarm - Yes Yes
Calculator - Yes Yes
Calendar Yes Yes Yes
To-Do List - Yes -
Voice Memo Yes Yes Yes
Software
BREW - - Yes
Games Yes Yes Yes
Java (J2ME) Yes Yes -
Voice
Headset Jack (2.5 mm) Yes - Yes
Push-To-Talk Yes - Yes
Speaker Phone Yes Yes Yes
  * Some versions only
  Motorola i450 / i455 Samsung M520 Casio G'zOne Rock
  X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola i450 / i455 Samsung M520 Casio G'zOne Rock

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