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Phone Pantech Duo C810 Motorola W175 Nokia Lumia 521 / 520 Samsung SGH-T819
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
? 4" diag.
5 : 3
?
Display Resolution & Type 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 1,320 mAh ? 1,430 mAh ?
Processor ARM 920t PXA27x ? 1 GHz Qualcomm Snapdragon S4 MSM8270 ?
RAM ? ? 512 MB ?
Storage ? raw hardware ? raw hardware 8 GB ? raw hardware
Main Camera 1 megapixel - 5 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture QVGA (320 x 240) - 720p HD QCIF (176 x 144)
Front Camera - - - -
Weight 3.88 oz
(110g)
3 oz
(85g)
4.39 oz
(124g)
3.46 oz
(98g)
Dimensions 4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
4.49" x 1.69" x 0.55"
(114 x 43 x 14 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
3.96" x 2.03" x 0.55"
(101 x 52 x 14 mm)
Form Factor Slide Slab Slab Slide
Platform / OS Windows Mobile Standard (proprietary) Windows (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

GSM: 850, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 4

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 1.8 - HSPA+ 21 WCDMA (UMTS)
Features 
GPS / Location n/a - n/a -
Accessibility
Hearing Aid Compatible - - Yes -
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Ringer Profiles Yes - - Yes
Connectivity
Bluetooth Yes - Yes Yes
Mobile Hotspot n/a - n/a -
USB Yes Yes Yes Yes
Wi-Fi - - Yes -
Contacts
Picture ID n/a - n/a Yes
Ringer ID n/a - n/a Yes
Voice Dialing n/a - n/a Yes
Customization
Custom Graphics n/a - n/a Yes
Custom Ringtones n/a - n/a Yes
Real-Music Ringers n/a - n/a Yes
Data & Network
Data Tethering n/a - n/a Yes
WAP / Web Browser n/a - n/a Yes
Input
Predictive Text Entry n/a Yes n/a Yes
Side Keys Yes - Yes Yes
Text Keyboard, Hardware Yes - - -
Touch Screen - - Yes -
Memory
Memory Card Slot Yes - Yes Yes
Messaging
Email Client n/a - n/a -
EMS / Picture Messaging n/a - n/a Yes
Instant Messaging n/a - n/a Yes
MMS n/a - n/a Yes
Text Messaging Templates n/a Yes n/a Yes
Music
Headphone Jack (3.5mm) - - Yes -
Music Player n/a - n/a Yes
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a Yes
To-Do List n/a - n/a Yes
Voice Memo n/a - n/a -
Software
Games n/a Yes n/a Yes
Java (J2ME) n/a - n/a Yes
Voice
Speaker Phone Yes Yes Yes Yes
  Pantech Duo C810 Motorola W175 Nokia Lumia 521 / 520 Samsung SGH-T819
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Phone Pantech Duo C810 Motorola W175 Nokia Lumia 521 / 520 Samsung SGH-T819

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