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Phone LG AX-275 Samsung SCH-A990 Samsung SCH-A645 Samsung SPH-Z400
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? 1.9" diag.
4 : 3
Display Resolution & Type 128 x 128 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
176 x 220 pixels
(~150 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 850 mAh 1,000 mAh 1,000 mAh 1,300 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes 3 megapixel - 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - ? - QCIF (176 x 144)
Front Camera - - - -
Weight 2.82 oz
(80g)
4.4 oz
(125g)
3.2 oz
(91g)
4.06 oz
(115g)
Dimensions 3.58" x 1.81" x 0.78"
(91 x 46 x 19.8 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.54" x 1.79" x 0.94"
(90 x 45 x 23.9 mm)
3.73" x 1.91" x 1"
(95 x 49 x 25.4 mm)
Form Factor Clamshell Clamshell Clamshell Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

Data Technology 1xRTT EVDO r0 1xRTT EVDO rA
Features 
Flashlight - Yes - -
GPS / Location Yes Yes Yes Yes
Ruggedized - - - Yes
Accessibility
Adjustable Text Size - - - Yes
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3 (mostly compatible)
Yes
M4 (very compatible)
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes Yes Yes Yes
Connectivity
Bluetooth - Yes - Yes
USB - Yes - Yes
Contacts
Picture ID Yes Yes Yes Yes
Ringer ID Yes Yes - Yes
Voice Dialing Yes Yes Yes Yes
Customization
Custom Graphics Yes Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers Yes Yes - Yes
Data & Network
Data Tethering - Yes - Yes
WAP / Web Browser Yes Yes Yes * Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes
Memory
Memory Card Slot - Yes - -
Messaging
Email Client - - - Yes
EMS / Picture Messaging - Yes Yes -
MMS Yes Yes - -
Text Messaging Templates Yes Yes Yes Yes
Music
Music Player - Yes - -
Stereo Speakers - Yes - Yes
Photo & Video
TV Output - Yes - -
Productivity
Alarm Yes Yes Yes Yes
Calculator Yes Yes Yes Yes
Calendar Yes Yes Yes Yes
To-Do List - - Yes -
Voice Memo Yes Yes Yes Yes
Software
BREW Yes Yes Yes * -
Games Yes Yes Yes * Yes
Java (J2ME) - - - Yes
Voice
Headset Jack (2.5 mm) Yes - Yes Yes
Push-To-Talk - - - Yes
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  LG AX-275 Samsung SCH-A990 Samsung SCH-A645 Samsung SPH-Z400
  X > < X > < X > < X

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

 
Phone LG AX-275 Samsung SCH-A990 Samsung SCH-A645 Samsung SPH-Z400

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