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Phone Pantech Duo C810 Ericsson R520 Motorola RIZR Z3 Ericsson R278d
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
? ? ?
Display Resolution & Type 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
? 176 x 220 pixels
LCD (TFT/TFD)
101 x 40 pixels
Display Refresh ? ? ? ?
Battery 1,320 mAh ? 780 mAh ?
Processor ARM 920t PXA27x ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel - 2 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture QVGA (320 x 240) - QCIF (176 x 144) -
Front Camera - - - -
Weight 3.88 oz
(110g)
4.23 oz
(120g)
3.92 oz
(111g)
9.28 oz
(263g)
Dimensions 4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
4.15" x 1.79" x 0.65"
(105 x 45 x 16.5 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
Form Factor Slide Slab Slide Slab
Platform / OS Windows Mobile Standard (proprietary) (proprietary) (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 850, 900, 1800, 1900

TDMA: 850, 1900

AMPS: 850

Data Technology HSDPA 1.8 GPRS EDGE -
Features 
Accessibility
Multiple Languages n/a Yes Yes Yes
TTY/TDD (Digital) - - Yes -
Alerts
Ringer Profiles Yes Yes Yes Yes
Connectivity
Bluetooth Yes Yes Yes -
Infrared (IR) - Yes - -
USB Yes - Yes
Mini-USB
-
Contacts
Picture ID n/a - Yes -
Ringer ID n/a - Yes -
Voice Dialing n/a Yes Yes -
Customization
Custom Graphics n/a - Yes -
Custom Ringtones n/a Yes Yes Yes
Real-Music Ringers n/a - Yes -
Data & Network
Data Tethering n/a Yes Yes Yes
WAP / Web Browser n/a Yes Yes Yes
Input
Predictive Text Entry n/a Yes Yes Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - -
Memory
Memory Card Slot Yes - Yes -
Messaging
Email Client n/a - Yes * -
EMS / Picture Messaging n/a - Yes -
Instant Messaging n/a - Yes -
MMS n/a - Yes -
Text Messaging Templates n/a Yes Yes -
Music
Music Player n/a - Yes -
Productivity
Alarm n/a Yes Yes Yes
Calculator n/a Yes Yes -
Calendar n/a Yes Yes -
To-Do List n/a - - -
Voice Memo n/a Yes Yes -
Software
Games n/a Yes Yes -
Java (J2ME) n/a - Yes -
Voice
Speaker Phone Yes Yes Yes -
  * Some versions only
  Pantech Duo C810 Ericsson R520 Motorola RIZR Z3 Ericsson R278d
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Pantech Duo C810 Ericsson R520 Motorola RIZR Z3 Ericsson R278d

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