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Phone Pantech Duo C810 Samsung Heat Huawei Ascend II Siemens CF75 Motorola ROKR E1
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size 2.2" diag.
4 : 3
? 3.5" diag.
5 : 3
? ?
Display Resolution & Type 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? ?
Battery 1,320 mAh 800 mAh 1,400 mAh 600 mAh ?
Processor ARM 920t PXA27x ? 600 MHz Qualcomm S1 MSM7627 ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel 1 megapixel 5 megapixel Yes Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) ? VGA (640 x 480) - ?
Front Camera - - - - -
Weight 3.88 oz
(110g)
3.17 oz
(90g)
4.1 oz
(116g)
3.17 oz
(90g)
3.77 oz
(107g)
Dimensions 4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
3.6" x 1.8" x 0.6"
(91 x 46 x 15.2 mm)
4.6" x 2.4" x 0.5"
(117 x 61 x 12.7 mm)
3.43" x 1.73" x 1.26"
(87 x 44 x 32 mm)
4.25" x 1.81" x 0.8"
(108 x 46 x 20.3 mm)
Form Factor Slide Slide Slab Clamshell Slab
Platform / OS Windows Mobile Standard (proprietary) Android (proprietary) (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1700, 1900

GSM: 900, 1800, 1900

GSM: 850, 1800, 1900

*

Data Technology HSDPA 1.8 EVDO r0 EVDO rA EDGE GPRS
Features 
GPS / Location n/a Yes n/a - -
Accessibility
Adjustable Text Size n/a Yes n/a - -
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
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Yes
Classic Audio
Infrared (IR) - - - Yes -
USB Yes Yes Yes
Micro-USB
Yes Yes
Wi-Fi - - Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID n/a Yes n/a - Yes
Ringer ID n/a Yes n/a - Yes
Voice Dialing n/a - n/a - Yes
Customization
Custom Graphics n/a Yes n/a Yes Yes
Custom Ringtones n/a Yes n/a Yes Yes
Real-Music Ringers n/a Yes n/a - Yes
Data & Network
Data Tethering n/a - 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 - - - -
Touch Screen - - Yes - -
Memory
Memory Card Slot Yes - Yes - Yes
Messaging
Email Client n/a - n/a Yes Yes
EMS / Picture Messaging n/a - n/a Yes Yes
Instant Messaging n/a - n/a - Yes
MMS n/a Yes n/a Yes Yes
Text Messaging Templates n/a Yes n/a Yes -
Music
Headphone Jack (3.5mm) - - Yes - -
Music Player n/a Yes n/a - Yes
Stereo Speakers - - - - Yes
Productivity
Alarm n/a Yes n/a Yes Yes
Calculator n/a Yes n/a Yes Yes
Calendar n/a Yes n/a Yes Yes
To-Do List n/a Yes n/a Yes -
Voice Memo n/a Yes n/a Yes Yes
Software
Games n/a Yes 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 Yes
  Pantech Duo C810 Samsung Heat Huawei Ascend II Siemens CF75 Motorola ROKR E1
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Phone Pantech Duo C810 Samsung Heat Huawei Ascend II Siemens CF75 Motorola ROKR E1

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