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Phone Samsung Rugby A837 LG K4 / Optimus Zone 3 / Rebel Samsung SGH-i250 Samsung Galaxy S6 (GSM) Motorola Droid Ultra
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Not yet released Released Released
Specifications 
Display Size 2" diag.
4 : 3
4.5" diag.
16 : 9
? 5.1" diag.
16 : 9
5" diag.
16 : 9
Display Resolution & Type 176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
720 x 1280 pixels
(~294 ppi)
AMOLED
Display Refresh ? 60 Hz ? 60 Hz 60 Hz
Battery 1,000 mAh 1,940 mAh ? 2,550 mAh 2,130 mAh
Processor ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ? 2.1 GHz Samsung Exynos 7420 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T
RAM ? 1.5 GB ? 3 GB 2 GB
Storage ? raw hardware 16 GB * ? raw hardware 32 GB * 16 GB
Main Camera 1 megapixel 5 megapixel 1 megapixel 16 megapixel 10 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) 720p HD ? 4K UHD 1080p HD
Front Camera - 2 megapixel - 5 megapixel 2 megapixel
Weight 4.66 oz
(132g)
3.99 oz
(113g)
4.59 oz
(130g)
4.87 oz
(138g)
4.83 oz
(137g)
Dimensions 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)
3.7" x 1.97" x 1.02"
(94 x 50 x 25.9 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
5.41" x 2.8" x 0.28"
(137 x 71 x 7.2 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) Android Windows Mobile Standard Android Android
Network Bands

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

*

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 LTE (Cat 3) GPRS LTE (Cat 6) LTE (Cat 3)
Features 
Fingerprint Reader - - - Yes -
Flashlight - Yes - Yes -
GPS / Location Yes n/a n/a n/a n/a
Ruggedized Yes - - - -
VR-ready - - - Yes -
Accessibility
Adjustable Text Size - n/a n/a n/a n/a
Hearing Aid Compatible Yes Yes - Yes Yes
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes - Yes - -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - - - Yes -
MirrorLink - - - Yes -
Mobile Hotspot - n/a n/a n/a n/a
NFC - - - Yes Yes
USB Yes Yes
Micro-USB
- Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes n/a n/a n/a n/a
Ringer ID Yes n/a n/a n/a n/a
Voice Dialing - n/a n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a n/a
Input
Predictive Text Entry Yes n/a 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 Yes n/a n/a n/a n/a
Instant Messaging Yes n/a n/a n/a n/a
MMS Yes n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
Headphone Jack (3.5mm) - Yes - Yes Yes
Music Player Yes n/a n/a n/a n/a
Photo & Video
DLNA - - - Yes -
Miracast - Yes - Yes Yes
TV Output - - - Yes -
Power
Fast Charging - - - Yes -
Wireless Charging - - - Yes -
Productivity
Alarm Yes n/a n/a n/a n/a
Calculator Yes n/a n/a n/a n/a
Calendar Yes n/a n/a n/a n/a
To-Do List - n/a n/a n/a n/a
Voice Memo Yes n/a n/a n/a n/a
Software
Games Yes n/a n/a n/a n/a
Java (J2ME) Yes n/a n/a n/a n/a
Voice
HD Voice - Yes * - Yes -
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes - Yes Yes
  * Some versions only
  Samsung Rugby A837 LG K4 / Optimus Zone 3 / Rebel Samsung SGH-i250 Samsung Galaxy S6 (GSM) Motorola Droid Ultra
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Rugby A837 LG K4 / Optimus Zone 3 / Rebel Samsung SGH-i250 Samsung Galaxy S6 (GSM) Motorola Droid Ultra

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