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Phone Samsung SGH-X640 Samsung SCH-A990 Motorola Q9m / Q9c Samsung SPH-N270 (Matrix Phone)
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 2.4" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 800 mAh 1,000 mAh 1,170 mAh 1,000 mAh
Processor ? ? PXA27x (ARM920T) ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes 3 megapixel 1 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - ? ? -
Front Camera - - - -
Weight 3 oz
(85g)
4.4 oz
(125g)
4.76 oz
(135g)
4.66 oz
(132g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.61" x 2.56" x 0.47"
(117 x 65 x 11.9 mm)
4.53" x 2.28" x 0.79"
(115 x 58 x 20.1 mm)
Form Factor Clamshell Clamshell Slab Slide
Platform / OS (proprietary) (proprietary) Windows Mobile Standard (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS EVDO r0 EVDO r0 -
Features 
Flashlight - Yes - -
GPS / Location - Yes n/a Yes
Accessibility
Hearing Aid Compatible - Yes
M3 (mostly compatible)
Yes
M3 (mostly compatible)
-
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - Yes - -
Ringer Profiles - - Yes -
Connectivity
Bluetooth - Yes Yes -
USB - Yes Yes
Mini-USB
-
Contacts
Picture ID Yes Yes n/a Yes
Ringer ID Yes Yes n/a Yes
Voice Dialing - Yes n/a Yes
Customization
Custom Graphics Yes Yes n/a -
Custom Ringtones Yes Yes n/a -
Real-Music Ringers - Yes n/a -
Data & Network
Data Tethering - Yes n/a -
WAP / Web Browser Yes Yes n/a -
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes -
Text Keyboard, Hardware - - Yes -
Memory
Memory Card Slot - Yes Yes -
Messaging
Email Client - - n/a -
EMS / Picture Messaging Yes Yes n/a -
MMS Yes Yes n/a -
Text Messaging Templates Yes Yes n/a -
Music
Music Player - Yes n/a -
Stereo Speakers - Yes Yes -
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 Yes n/a Yes
Software
BREW - Yes n/a -
Games Yes Yes n/a -
Java (J2ME) Yes - n/a -
Voice
Headset Jack (2.5 mm) Yes - n/a Yes
Speaker Phone Yes Yes Yes -
  Samsung SGH-X640 Samsung SCH-A990 Motorola Q9m / Q9c Samsung SPH-N270 (Matrix Phone)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung SCH-A990 Motorola Q9m / Q9c Samsung SPH-N270 (Matrix Phone)

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