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Phone Siemens A56 / A56i Palm Pre 2 (GSM) Casio G'zOne Boulder Samsung SGH-D900 / Black Carbon
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 3.1" diag.
5 : 3
2" diag.
4 : 3
?
Display Resolution & Type 101 x 64 pixels 320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 700 mAh 1,150 mAh 810 mAh 800 mAh
Processor ? 1 GHz TI 3630 ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - 5 megapixel 1 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - VGA (640 x 480) ? ?
Front Camera - - - -
Weight 3 oz
(85g)
5.1 oz
(145g)
4.9 oz
(139g)
3.28 oz
(93g)
Dimensions 4" x 1.7" x 0.8"
(102 x 43 x 20.3 mm)
3.96" x 2.35" x 0.67"
(101 x 60 x 17 mm)
3.9" x 2" x 0.9"
(99 x 51 x 22.9 mm)
4.07" x 2.01" x 0.51"
(103 x 51 x 13 mm)
Form Factor Slab Slide Clamshell Slide
Platform / OS (proprietary) webOS (proprietary) (proprietary)
Network Bands

GSM: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology - HSDPA 3.6 EVDO rA EDGE
Features 
Flashlight - - Yes -
GPS / Location Yes n/a Yes -
Ruggedized - - Yes -
Water-Resistant - - Yes -
Accessibility
Hearing Aid Compatible - - Yes -
Multiple Languages - n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display - - Yes -
Ringer Profiles Yes - - -
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
USB - Yes
Micro-USB
Yes Yes
Wi-Fi - Yes
802.11 b,g
- -
Contacts
Picture ID Yes n/a Yes Yes
Ringer ID Yes n/a Yes Yes
Voice Dialing - n/a Yes -
Customization
Changeable Body Plates Yes - Yes -
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers - n/a - Yes
Data & Network
Data Tethering - n/a Yes Yes
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys - Yes Yes Yes
Text Keyboard, Hardware - Yes - -
Touch Screen - Yes - -
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client - n/a - Yes
EMS / Picture Messaging Yes n/a Yes Yes
Instant Messaging - n/a - -
MMS - n/a Yes Yes
Text Messaging Templates - n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes - -
Music Player - n/a Yes Yes
Photo & Video
TV Output - - - Yes
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes Yes
Calendar - n/a Yes Yes
To-Do List - n/a - Yes
Voice Memo - n/a Yes Yes
Software
BREW - n/a Yes -
Games Yes n/a Yes Yes
Java (J2ME) - n/a - Yes
Voice
Push-To-Talk - - Yes -
Speaker Phone - Yes Yes Yes
  Siemens A56 / A56i Palm Pre 2 (GSM) Casio G'zOne Boulder Samsung SGH-D900 / Black Carbon
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Siemens A56 / A56i Palm Pre 2 (GSM) Casio G'zOne Boulder Samsung SGH-D900 / Black Carbon

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