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Phone Motorola EM330 / EM28 Kyocera DuraXTP BlackBerry Storm2 9550 Pantech Duo C810 ZTE Concord II
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
2.4" diag.
4 : 3
3.3" diag.
4 : 3
2.2" diag.
4 : 3
4" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
360 x 480 pixels
(~185 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? 60 Hz
Battery 940 mAh 1,500 mAh 1,400 mAh 1,320 mAh 1,820 mAh
Processor ? 480 MHz Qualcomm QSC6185 ? ARM 920t PXA27x 1.2 GHz Qualcomm MSM8210
RAM ? 256 MB ? ? 1 GB
Storage ? raw hardware 512 MB ? raw hardware ? raw hardware 4 GB
Main Camera 1 megapixel 5 megapixel 3 megapixel 1 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? QVGA (320 x 240) ? QVGA (320 x 240) 720p HD
Front Camera - - - - -
Weight 3.17 oz
(90g)
5.75 oz
(163g)
5.64 oz
(160g)
3.88 oz
(110g)
4.4 oz
(125g)
Dimensions 3.71" x 1.95" x 0.68"
(94 x 50 x 17.4 mm)
4.13" x 2.15" x 0.99"
(105 x 55 x 25.1 mm)
4.43" x 2.45" x 0.55"
(113 x 62 x 14 mm)
4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
4.96" x 2.56" x 0.42"
(126 x 65 x 10.7 mm)
Form Factor Clamshell Clamshell Slab Slide Slab
Platform / OS (proprietary) (proprietary) BlackBerry OS Windows Mobile Standard Android
Network Bands

GSM: 850, 1800, 1900

*

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 1

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology EDGE EVDO rA EVDO rA HSDPA 1.8 HSPA+ 21
Features 
Flashlight - Yes - - -
GPS / Location - Yes n/a n/a n/a
Ruggedized - Yes - - -
Water-Resistant - Yes
IPX8 (SCUBA)
- - -
Accessibility
Adjustable Text Size - Yes n/a n/a n/a
Hearing Aid Compatible Yes Yes Yes - Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display Yes Yes - - -
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - - n/a n/a n/a
USB Yes
Mini-USB
Yes
Micro-USB
Yes Yes Yes
Micro-USB
Wi-Fi - - Yes
802.11 b,g
- Yes
4 (802.11 b,g,n)
Contacts
Picture ID - Yes n/a n/a n/a
Ringer ID - Yes n/a n/a n/a
Voice Dialing - Yes n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers Yes Yes n/a n/a n/a
Data & Network
Data Tethering - - n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - - Yes - Yes
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client - Yes n/a n/a n/a
EMS / Picture Messaging Yes - n/a n/a n/a
Instant Messaging - - n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) Yes Yes Yes - Yes
Music Player Yes - n/a n/a n/a
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List - Yes n/a n/a n/a
Voice Memo - Yes n/a n/a n/a
Software
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes - n/a n/a n/a
Voice
HD Voice - - - - Yes
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes Yes Yes Yes
  Motorola EM330 / EM28 Kyocera DuraXTP BlackBerry Storm2 9550 Pantech Duo C810 ZTE Concord II
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola EM330 / EM28 Kyocera DuraXTP BlackBerry Storm2 9550 Pantech Duo C810 ZTE Concord II

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