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Phone Motorola Rival A455 Casio G'zOne Rock LG PM-225 BlackBerry 7750
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
2.1" diag.
4 : 3
? ?
Display Resolution & Type 176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
240 x 240 pixels
LCD (Color)
Display Refresh ? ? ? ?
Battery 940 mAh 1,150 mAh 1,000 mAh ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 2 megapixel 2 megapixel Yes -
Wide Camera - - - -
Tele Camera - - - -
Video Capture QVGA (320 x 240) ? - -
Front Camera - - - -
Weight 4.48 oz
(127g)
4.4 oz
(125g)
3.35 oz
(95g)
5.01 oz
(142g)
Dimensions 3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
3.53" x 1.76" x 0.93"
(90 x 45 x 23.6 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Slide Clamshell Clamshell Slab
Platform / OS (proprietary) (proprietary) (proprietary) BlackBerry OS
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

Data Technology EVDO r0 EVDO rA 1xRTT 1xRTT
Features 
Flashlight - Yes - -
GPS / Location Yes Yes Yes n/a
Ruggedized - Yes - -
Water-Resistant - Yes - -
Accessibility
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
- -
Multiple Languages Yes Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display - Yes Yes -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes Yes - -
USB Yes
Micro-USB
Yes Yes Yes
Contacts
Picture ID Yes Yes Yes n/a
Ringer ID Yes Yes Yes n/a
Voice Dialing Yes Yes Yes n/a
Customization
Custom Graphics Yes Yes Yes n/a
Custom Ringtones Yes Yes Yes n/a
Real-Music Ringers Yes Yes - n/a
Data & Network
Data Tethering Yes Yes - n/a
WAP / Web Browser Yes Yes Yes n/a
Input
Predictive Text Entry - Yes Yes n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - Yes
Touch Screen Yes - - -
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client Yes Yes - n/a
EMS / Picture Messaging Yes - - n/a
Instant Messaging Yes Yes - n/a
MMS Yes Yes - n/a
Text Messaging Templates Yes Yes - n/a
Music
Headphone Jack (3.5mm) Yes - - -
Music Player Yes Yes - n/a
Productivity
Alarm Yes Yes Yes n/a
Calculator Yes Yes Yes n/a
Calendar Yes Yes Yes n/a
To-Do List - - - n/a
Voice Memo Yes Yes Yes n/a
Software
BREW Yes Yes - n/a
Games Yes Yes Yes n/a
Java (J2ME) - - Yes n/a
Voice
Headset Jack (2.5 mm) - Yes Yes n/a
Push-To-Talk - Yes - -
Speaker Phone Yes Yes Yes -
  Motorola Rival A455 Casio G'zOne Rock LG PM-225 BlackBerry 7750
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola Rival A455 Casio G'zOne Rock LG PM-225 BlackBerry 7750

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