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Phone Amazon Fire Samsung Rugby 4 ZTE Groove Samsung SCH-U740 Alias LG Trax CU575
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
2.4" diag.
4 : 3
3.2" diag.
5 : 3
? ?
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? ?
Battery 2,400 mAh 1,300 mAh 1,500 mAh ? 980 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 Intel XMM6230 800 MHz Qualcomm MSM7627A ? ?
RAM 2 GB 128 MB 512 MB ? ?
Storage 32 GB * 256 MB 1 GB ? raw hardware ? raw hardware
Main Camera 13 megapixel 3 megapixel 3 megapixel 1 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD QVGA (320 x 240) 720p HD ? QCIF (176 x 144)
Front Camera 2 megapixel - Yes - -
Weight 5.64 oz
(160g)
5.22 oz
(148g)
4.5 oz
(128g)
3.56 oz
(101g)
3.89 oz
(110g)
Dimensions 5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
4.25" x 2.17" x 0.85"
(108 x 55 x 21.6 mm)
4.67" x 2.46" x 0.55"
(119 x 62 x 14 mm)
3.84" x 2.04" x 0.63"
(98 x 52 x 16 mm)
3.89" x 2.01" x 0.62"
(99 x 51 x 15.7 mm)
Form Factor Slab Clamshell Slab Clamshell Clamshell
Platform / OS (proprietary) (proprietary) Android (proprietary) (proprietary)
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1700, 1900

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) HSPA+ 21 EVDO rA EVDO r0 HSDPA 3.6
Features 
Flashlight Yes - - - -
GPS / Location Yes Yes n/a Yes -
Ruggedized - Yes - - -
Water-Resistant - Yes
IPX7 (snorkeling)
- - -
Accessibility
Adjustable Text Size - Yes n/a - -
Hearing Aid Compatible Yes Yes - Yes -
Multiple Languages Yes Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display - Yes - Yes Yes
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot Yes - n/a - -
NFC Yes - - - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Yes - -
Contacts
Picture ID Yes Yes n/a Yes Yes
Ringer ID Yes Yes n/a Yes -
Voice Dialing Yes Yes n/a Yes Yes
Customization
Custom Graphics - Yes n/a Yes Yes
Custom Ringtones Yes Yes n/a Yes Yes
Real-Music Ringers - Yes n/a - Yes
Data & Network
Data Tethering Yes - n/a Yes Yes
WAP / Web Browser Yes Yes n/a Yes Yes
Input
Predictive Text Entry Yes Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes - Yes - -
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client Yes Yes n/a Yes Yes
Instant Messaging - - n/a Yes Yes
MMS Yes Yes n/a Yes Yes
Text Messaging Templates Yes Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) Yes - Yes - -
Music Player Yes Yes n/a Yes Yes
Stereo Speakers Yes - - - -
Photo & Video
Miracast Yes - - - -
TV Output Yes - - - -
Productivity
Alarm Yes Yes n/a Yes Yes
Calculator Yes Yes n/a Yes Yes
Calendar Yes Yes n/a Yes Yes
To-Do List - Yes n/a - Yes
Voice Memo Yes Yes n/a Yes Yes
Software
BREW - - n/a Yes -
Games Yes Yes n/a Yes Yes
Java (J2ME) - Yes n/a - Yes
Voice
HD Voice Yes - - - -
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes Yes Yes Yes
  Amazon Fire Samsung Rugby 4 ZTE Groove Samsung SCH-U740 Alias LG Trax CU575
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Amazon Fire Samsung Rugby 4 ZTE Groove Samsung SCH-U740 Alias LG Trax CU575

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