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Phone Motorola EM330 / EM28 Samsung SPH-N240 Samsung Rugby A837 LG K4 / Optimus Zone 3 / Rebel Samsung SPH-N270 (Matrix Phone)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
? 2" diag.
4 : 3
4.5" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
128 x 64 pixels 176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 940 mAh ? 1,000 mAh 1,940 mAh 1,000 mAh
Processor ? ? ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ?
RAM ? ? ? 1.5 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 16 GB * ? raw hardware
Main Camera 1 megapixel - 1 megapixel 5 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - QCIF (176 x 144) 720p HD -
Front Camera - - - 2 megapixel -
Weight 3.17 oz
(90g)
3.2 oz
(91g)
4.66 oz
(132g)
3.99 oz
(113g)
4.66 oz
(132g)
Dimensions 3.71" x 1.95" x 0.68"
(94 x 50 x 17.4 mm)
4.1" x 1.5" x 0.7"
(104 x 38 x 17.8 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
5.19" x 2.62" x 0.35"
(132 x 67 x 8.9 mm)
4.53" x 2.28" x 0.79"
(115 x 58 x 20.1 mm)
Form Factor Clamshell Slab Clamshell Slab Slide
Platform / OS (proprietary) (proprietary) (proprietary) Android (proprietary)
Network Bands

GSM: 850, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

Data Technology EDGE - HSDPA 3.6 LTE (Cat 3) -
Features 
Flashlight - - - Yes -
GPS / Location - Yes Yes n/a Yes
Ruggedized - - Yes - -
Accessibility
Adjustable Text Size - - - n/a -
Hearing Aid Compatible Yes - Yes Yes -
Multiple Languages Yes Yes Yes n/a Yes
TTY/TDD (Digital) Yes - Yes Yes -
Alerts
Extra Display Yes - Yes - -
Connectivity
Bluetooth Yes - Yes Yes -
Mobile Hotspot - - - n/a -
USB Yes
Mini-USB
- Yes Yes
Micro-USB
-
Wi-Fi - - - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID - - Yes n/a Yes
Ringer ID - Yes Yes n/a Yes
Voice Dialing - Yes - n/a Yes
Customization
Changeable Body Plates - Yes - - -
Custom Graphics Yes - Yes n/a -
Custom Ringtones Yes - Yes n/a -
Real-Music Ringers Yes - Yes n/a -
Data & Network
Data Tethering - - Yes n/a -
WAP / Web Browser Yes - Yes n/a -
Input
Predictive Text Entry Yes Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes -
Touch Screen - - - Yes -
Memory
Memory Card Slot Yes - Yes Yes -
Messaging
Email Client - - Yes n/a -
EMS / Picture Messaging Yes - - n/a -
Instant Messaging - - Yes n/a -
MMS Yes - Yes n/a -
Text Messaging Templates Yes - Yes n/a -
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) Yes - - Yes -
Music Player Yes - Yes n/a -
Photo & Video
Miracast - - - Yes -
Productivity
Alarm Yes Yes Yes n/a Yes
Calculator Yes Yes Yes n/a Yes
Calendar Yes Yes Yes n/a Yes
To-Do List - Yes - n/a Yes
Voice Memo - - Yes n/a Yes
Software
Games Yes Yes Yes n/a -
Java (J2ME) Yes - Yes n/a -
Voice
HD Voice - - - Yes * -
Headset Jack (2.5 mm) - Yes - n/a Yes
Push-To-Talk - - Yes - -
Speaker Phone Yes - Yes Yes -
  * Some versions only
  Motorola EM330 / EM28 Samsung SPH-N240 Samsung Rugby A837 LG K4 / Optimus Zone 3 / Rebel Samsung SPH-N270 (Matrix Phone)
  X > < X > < X > < X > < X

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

 
Phone Motorola EM330 / EM28 Samsung SPH-N240 Samsung Rugby A837 LG K4 / Optimus Zone 3 / Rebel Samsung SPH-N270 (Matrix Phone)

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