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Phone Samsung SGH-X640 Samsung VI-A820 Samsung Array / Montage LG LX-350 Motorola i580
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 2.4" diag.
4 : 3
? ?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 800 mAh 1,000 mAh 1,000 mAh ? ?
Processor ? ? 480 MHz Qualcomm QSC6155 ? ?
RAM ? ? 128 MB ? ?
Storage ? raw hardware ? raw hardware 256 MB ? raw hardware ? raw hardware
Main Camera Yes - 2 megapixel 1 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - QCIF (176 x 144) ? ?
Front Camera - - - - -
Weight 3 oz
(85g)
3.14 oz
(89g)
4.14 oz
(117g)
3.7 oz
(105g)
4.9 oz
(139g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.56" x 1.88" x 1.06"
(90 x 48 x 26.9 mm)
4.41" x 2.12" x 0.59"
(112 x 54 x 15 mm)
3.62" x 1.85" x 0.9"
(92 x 47 x 22.9 mm)
3.68" x 2.2" x 1.2"
(93 x 56 x 30.5 mm)
Form Factor Clamshell Clamshell Slide Clamshell Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 800, 850, 1900

CDMA: 850, 1900

AMPS: 850

iDEN: 800

Data Technology GPRS 1xRTT 1xRTT 1xRTT WiDEN
Features 
GPS / Location - Yes Yes Yes Yes
Ruggedized - - - - Yes
Accessibility
Adjustable Text Size - - - Yes -
Hearing Aid Compatible - - Yes
M3, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes Yes Yes Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - Yes - Yes Yes
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - - Yes Yes Yes
USB - - Yes
Micro-USB
- -
Contacts
Picture ID Yes Yes Yes Yes Yes
Ringer ID Yes Yes Yes Yes Yes
Voice Dialing - Yes Yes Yes Yes
Customization
Custom Graphics Yes Yes Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes Yes
Real-Music Ringers - - Yes - -
Data & Network
Data Tethering - - - Yes Yes
WAP / Web Browser Yes Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client - - Yes - -
EMS / Picture Messaging Yes - - - -
MMS Yes - Yes - Yes
Text Messaging Templates Yes - Yes - Yes
Music
Headphone Jack (3.5mm) - - Yes - -
Music Player - - Yes - Yes *
Productivity
Alarm Yes Yes Yes Yes -
Calculator Yes Yes Yes Yes Yes *
Calendar Yes Yes Yes Yes Yes
To-Do List Yes Yes - - -
Voice Memo Yes Yes Yes Yes Yes
Software
Games Yes Yes Yes Yes Yes
Java (J2ME) Yes Yes Yes Yes Yes
Voice
Headset Jack (2.5 mm) Yes Yes - Yes Yes
Push-To-Talk - Yes - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Samsung VI-A820 Samsung Array / Montage LG LX-350 Motorola i580
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung VI-A820 Samsung Array / Montage LG LX-350 Motorola i580

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