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Phone LG AX-390 / UX-390 LG AX-490 Samsung SGH-X640 ZTE Savvy
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? 4" diag.
5 : 3
Display Resolution & Type 128 x 128 pixels
LCD (STN)
128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz
Battery 1,000 mAh 1,100 mAh 800 mAh 1,650 mAh
Processor ? ? ? 1 GHz Qualcomm MSM8625
RAM ? ? ? 768 MB
Storage ? raw hardware ? raw hardware ? raw hardware 4 GB
Main Camera - Yes Yes 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - - WVGA / 480p
Front Camera - - - -
Weight 3.74 oz
(106g)
3.79 oz
(107g)
3 oz
(85g)
4.43 oz
(126g)
Dimensions 3.82" x 1.98" x 0.94"
(97 x 50 x 23.9 mm)
3.74" x 1.92" x 1"
(95 x 49 x 25.4 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.96" x 2.55" x 0.42"
(126 x 65 x 10.7 mm)
Form Factor Clamshell Clamshell Clamshell Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

CDMA: 850, 1900

Data Technology 1xRTT 1xRTT GPRS EVDO rA
Features 
Flashlight - - - Yes
GPS / Location Yes Yes - n/a
Accessibility
Adjustable Text Size - - - n/a
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M3 (mostly compatible)
- Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes Yes Yes n/a
TTY/TDD (Digital) Yes Yes - Yes
Alerts
Extra Display Yes Yes - -
Connectivity
Bluetooth - Yes - Yes
USB - Yes - Yes
Micro-USB
Wi-Fi - - - Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes Yes Yes n/a
Ringer ID - Yes Yes n/a
Voice Dialing 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 - 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 - -
Touch Screen - - - Yes
Capacitive
Memory
Memory Card Slot - - - Yes
Messaging
Email Client - - - n/a
EMS / Picture Messaging - - Yes n/a
Instant Messaging - - - n/a
MMS Yes Yes Yes n/a
Text Messaging Templates - Yes Yes n/a
Music
Headphone Jack (3.5mm) - - - Yes
Music Player - - - n/a
Stereo Speakers - Yes - -
Photo & Video
DLNA - - - Yes
Productivity
Alarm Yes Yes Yes n/a
Calculator Yes Yes Yes n/a
Calendar Yes Yes Yes n/a
To-Do List - - Yes 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 Yes n/a
Push-To-Talk Yes - - -
Speaker Phone Yes Yes Yes Yes
  LG AX-390 / UX-390 LG AX-490 Samsung SGH-X640 ZTE Savvy
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Phone LG AX-390 / UX-390 LG AX-490 Samsung SGH-X640 ZTE Savvy

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