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Phone Pantech Duo C810 Ericsson R278d BlackBerry 8703e Motorola i90c Samsung M520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
? ? ? 2.1" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
101 x 40 pixels 320 x 240 pixels
LCD (TFT/TFD)
?
LCD (Grayscale)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 1,320 mAh ? 1,100 mAh ? ?
Processor ARM 920t PXA27x ? ? ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel - - - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) - - - ?
Front Camera - - - - -
Weight 3.88 oz
(110g)
9.28 oz
(263g)
4.7 oz
(133g)
5.33 oz
(151g)
2.75 oz
(78g)
Dimensions 4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
4.3" x 2.7" x 0.8"
(109 x 69 x 20.3 mm)
3.5" x 2" x 1.1"
(89 x 51 x 27.9 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
Form Factor Slide Slab Slab Clamshell Slide
Platform / OS Windows Mobile Standard (proprietary) BlackBerry OS (proprietary) (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

TDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

iDEN: 800

CDMA: 850, 1900

Data Technology HSDPA 1.8 - EVDO r0 - EVDO r0
Features 
GPS / Location n/a - n/a - Yes
Accessibility
Hearing Aid Compatible - - Yes - Yes
Multiple Languages n/a Yes n/a Yes Yes
TTY/TDD (Digital) - - Yes Yes Yes
Alerts
Extra Display - - - Yes -
Ringer Profiles Yes Yes Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
- Yes
Classic Audio
USB Yes - Yes - Yes
Contacts
Picture ID n/a - n/a - Yes
Ringer ID n/a - n/a - Yes
Voice Dialing n/a - n/a Yes Yes
Customization
Custom Graphics n/a - n/a - Yes
Custom Ringtones n/a Yes n/a - Yes
Real-Music Ringers n/a - n/a - -
Data & Network
Data Tethering n/a Yes n/a Yes Yes
WAP / Web Browser n/a Yes n/a Yes Yes
Input
Predictive Text Entry n/a Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - Yes - -
Memory
Memory Card Slot Yes - - - Yes
Messaging
Email Client n/a - n/a - -
Instant Messaging n/a - n/a - -
MMS n/a - n/a - -
Text Messaging Templates n/a - n/a - Yes
Music
Music Player n/a - n/a - Yes
Productivity
Alarm n/a Yes n/a Yes Yes
Calculator n/a - n/a Yes Yes
Calendar n/a - n/a Yes Yes
To-Do List n/a - n/a - Yes
Voice Memo n/a - n/a Yes Yes
Software
Games n/a - n/a Yes Yes
Java (J2ME) n/a - n/a Yes Yes
Voice
Headset Jack (2.5 mm) n/a - n/a Yes -
Push-To-Talk - - - Yes -
Speaker Phone Yes - Yes Yes Yes
  Pantech Duo C810 Ericsson R278d BlackBerry 8703e Motorola i90c Samsung M520
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Phone Pantech Duo C810 Ericsson R278d BlackBerry 8703e Motorola i90c Samsung M520

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