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Phone LG AX-390 / UX-390 Audiovox CDM-8400 / CDM-8410 AT&T Vista Coolpad Defiant Samsung Galaxy S II Skyrocket
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 5.5" diag.
18 : 9
5" diag.
16 : 9
4.5" diag.
5 : 3
Display Resolution & Type 128 x 128 pixels
LCD (STN)
128 x 128 pixels
LCD (STN)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~207 ppi)
AMOLED
Display Refresh ? ? 60 Hz 60 Hz 60 Hz
Battery 1,000 mAh ? 2,450 mAh 2,450 mAh 1,850 mAh
Processor ? ? 2 GHz MediaTek Helio A22 (MT6761V) 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) 1.5 GHz Qualcomm Snapdragon S3 APQ8060
RAM ? ? 3 GB 1 GB 1 GB
Storage ? raw hardware ? raw hardware 32 GB 8 GB 16 GB
Main Camera - - 8 megapixel 5 megapixel 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - 1080p HD 720p HD 1080p HD
Front Camera - - 5 megapixel 2 megapixel 2 megapixel
Weight 3.74 oz
(106g)
3.52 oz
(100g)
5.51 oz
(156g)
6.5 oz
(184g)
4.71 oz
(133g)
Dimensions 3.82" x 1.98" x 0.94"
(97 x 50 x 23.9 mm)
4.3" x 1.8" x 0.7"
(109 x 46 x 17.8 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
5.12" x 2.72" x 0.35"
(130 x 69 x 9 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 4, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT 1xRTT LTE (Cat 4) LTE (Cat 4) LTE (Cat 3)
Features 
Flashlight - - Yes Yes -
GPS / Location Yes Yes n/a n/a n/a
Accessibility
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes - - - -
Connectivity
Bluetooth - - Yes Yes Yes
Mobile Hotspot - - n/a n/a n/a
NFC - - - - Yes
USB - - Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - Yes Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes - n/a n/a n/a
Ringer ID - - n/a n/a n/a
Voice Dialing Yes Yes n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers Yes - n/a n/a n/a
Data & Network
Data Tethering - Yes n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot - - Yes Yes Yes
Messaging
Email Client - - n/a n/a n/a
EMS / Picture Messaging - Yes n/a n/a n/a
Instant Messaging - - n/a n/a n/a
MMS Yes - n/a n/a n/a
Text Messaging Templates - - n/a n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - - n/a n/a n/a
Photo & Video
DLNA - - - - Yes
TV Output - - - - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List - - n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
BREW Yes Yes n/a n/a n/a
Games Yes Yes n/a n/a n/a
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes Yes n/a n/a n/a
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  LG AX-390 / UX-390 Audiovox CDM-8400 / CDM-8410 AT&T Vista Coolpad Defiant Samsung Galaxy S II Skyrocket
  X > < X > < X > < X > < X

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

 
Phone LG AX-390 / UX-390 Audiovox CDM-8400 / CDM-8410 AT&T Vista Coolpad Defiant Samsung Galaxy S II Skyrocket

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