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Phone Pantech Duo C810 ZTE Grand XMax LG K4 / Optimus Zone 3 / Rebel Motorola Defy (2010) Samsung SCH-A990
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
6" diag.
16 : 9
4.5" diag.
16 : 9
3.6" diag.
16 : 9
?
Display Resolution & Type 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~245 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~272 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz 60 Hz ?
Battery 1,320 mAh 3,200 mAh 1,940 mAh 1,540 mAh 1,000 mAh
Processor ARM 920t PXA27x 1.2 GHz Qualcomm Snapdragon 200 MSM8212 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) 800 MHz TI OMAP3610 ?
RAM ? 1 GB 1.5 GB ? ?
Storage ? raw hardware 8 GB 16 GB * ? raw hardware ? raw hardware
Main Camera 1 megapixel 8 megapixel 5 megapixel 5 megapixel 3 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) 720p HD 720p HD ? ?
Front Camera - 1 megapixel 2 megapixel - -
Weight 3.88 oz
(110g)
6.06 oz
(172g)
3.99 oz
(113g)
4.16 oz
(118g)
4.4 oz
(125g)
Dimensions 4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
6.38" x 3.27" x 0.31"
(162 x 83 x 7.9 mm)
5.19" x 2.62" x 0.35"
(132 x 67 x 8.9 mm)
4.21" x 2.32" x 0.53"
(107 x 59 x 13.4 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Slide Slab Slab Slab Clamshell
Platform / OS Windows Mobile Standard Android Android Android (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 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

*

WCDMA: 1, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology HSDPA 1.8 HSPA+ 21 LTE (Cat 3) HSPA 7.2 EVDO r0
Features 
Flashlight - - Yes - Yes
GPS / Location n/a n/a n/a n/a Yes
Ruggedized - - - Yes -
Accessibility
Adjustable Text Size n/a n/a n/a n/a -
Hearing Aid Compatible - Yes Yes - Yes
Multiple Languages n/a n/a n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - - -
Mobile Hotspot n/a n/a n/a n/a -
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID n/a n/a n/a n/a Yes
Ringer ID n/a n/a n/a n/a Yes
Voice Dialing n/a n/a n/a n/a Yes
Customization
Custom Graphics n/a n/a n/a n/a Yes
Custom Ringtones n/a n/a n/a n/a Yes
Real-Music Ringers n/a n/a n/a n/a Yes
Data & Network
Data Tethering n/a n/a n/a n/a Yes
WAP / Web Browser n/a n/a n/a n/a Yes
Input
Predictive Text Entry n/a n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen - Yes Yes Yes -
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client n/a n/a n/a n/a -
EMS / Picture Messaging n/a n/a n/a n/a Yes
Instant Messaging n/a n/a n/a n/a -
MMS n/a n/a n/a n/a Yes
Text Messaging Templates n/a n/a n/a n/a Yes
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - Yes Yes Yes -
Music Player n/a n/a n/a n/a Yes
Stereo Speakers - - - - Yes
Photo & Video
DLNA - - - Yes -
Miracast - - Yes - -
TV Output - - - - Yes
Productivity
Alarm n/a n/a n/a n/a Yes
Calculator n/a n/a n/a n/a Yes
Calendar n/a n/a n/a n/a Yes
To-Do List n/a n/a n/a n/a -
Voice Memo n/a n/a n/a n/a Yes
Software
BREW n/a n/a n/a n/a Yes
Games n/a n/a n/a n/a Yes
Voice
HD Voice - - Yes * - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Pantech Duo C810 ZTE Grand XMax LG K4 / Optimus Zone 3 / Rebel Motorola Defy (2010) Samsung SCH-A990
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Phone Pantech Duo C810 ZTE Grand XMax LG K4 / Optimus Zone 3 / Rebel Motorola Defy (2010) Samsung SCH-A990

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