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Phone Samsung SGH-X640 Motorola Q9m / Q9c LG PM-225 Motorola Rival A455
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
? 2.2" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 800 mAh 1,170 mAh 1,000 mAh 940 mAh
Processor ? PXA27x (ARM920T) ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes 1 megapixel Yes 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - ? - QVGA (320 x 240)
Front Camera - - - -
Weight 3 oz
(85g)
4.76 oz
(135g)
3.35 oz
(95g)
4.48 oz
(127g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.61" x 2.56" x 0.47"
(117 x 65 x 11.9 mm)
3.53" x 1.76" x 0.93"
(90 x 45 x 23.6 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
Form Factor Clamshell Slab Clamshell Slide
Platform / OS (proprietary) Windows Mobile Standard (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

Data Technology GPRS EVDO r0 1xRTT EVDO r0
Features 
GPS / Location - n/a Yes Yes
Accessibility
Hearing Aid Compatible - Yes
M3 (mostly compatible)
- Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Extra Display - - Yes -
Ringer Profiles - Yes - -
Connectivity
Bluetooth - Yes - Yes
USB - Yes
Mini-USB
Yes Yes
Micro-USB
Contacts
Picture ID Yes n/a Yes Yes
Ringer ID Yes n/a Yes Yes
Voice Dialing - n/a Yes Yes
Customization
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers - n/a - Yes
Data & Network
Data Tethering - n/a - Yes
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes -
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - Yes
Touch Screen - - - Yes
Memory
Memory Card Slot - Yes - Yes
Messaging
Email Client - n/a - Yes
EMS / Picture Messaging Yes n/a - Yes
Instant Messaging - n/a - Yes
MMS Yes n/a - Yes
Text Messaging Templates Yes n/a - Yes
Music
Headphone Jack (3.5mm) - - - Yes
Music Player - n/a - Yes
Stereo Speakers - Yes - -
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes Yes
Calendar Yes n/a Yes Yes
To-Do List Yes n/a - -
Voice Memo Yes n/a Yes Yes
Software
BREW - n/a - Yes
Games Yes n/a Yes Yes
Java (J2ME) Yes n/a Yes -
Voice
Headset Jack (2.5 mm) Yes n/a Yes -
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-X640 Motorola Q9m / Q9c LG PM-225 Motorola Rival A455
  X > < X > < X > < X

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

 
Phone Samsung SGH-X640 Motorola Q9m / Q9c LG PM-225 Motorola Rival A455

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