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Phone Sony Ericsson K850 Palm Treo 650 (CDMA) Siemens C56 BlackBerry 7750
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)
320 x 320 pixels
LCD (TFT/TFD)
101 x 64 pixels 240 x 240 pixels
LCD (Color)
Display Refresh ? ? ? ?
Battery ? ? 700 mAh ?
Processor ? 312 MHz Intel XScale PXA270 ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 5 megapixel Yes - -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? QVGA (320 x 240) - -
Front Camera - - - -
Weight 4.2 oz
(119g)
6.3 oz
(179g)
3 oz
(85g)
5.01 oz
(142g)
Dimensions 4" x 1.9" x 0.7"
(102 x 48 x 17.8 mm)
4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
3.98" x 1.73" x 0.83"
(101 x 44 x 21.1 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Slab Slab Slab Slab
Platform / OS (proprietary) Palm OS (proprietary) BlackBerry OS
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

GSM: 850, 1900

CDMA: 850, 1900

Data Technology HSDPA 3.6 1xRTT GPRS 1xRTT
Features 
GPS / Location - n/a Yes n/a
Accessibility
Multiple Languages Yes n/a Yes n/a
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Ringer Profiles Yes - Yes Yes
Connectivity
Bluetooth Yes Yes - -
Infrared (IR) - Yes - -
USB Yes - Yes Yes
Contacts
Picture ID Yes n/a - n/a
Ringer ID Yes n/a Yes n/a
Voice Dialing Yes n/a Yes n/a
Customization
Changeable Body Plates - - Yes -
Custom Graphics Yes n/a Yes n/a
Custom Ringtones Yes n/a Yes n/a
Real-Music Ringers Yes n/a - n/a
Data & Network
Data Tethering Yes n/a Yes n/a
WAP / Web Browser Yes n/a Yes n/a
Input
Predictive Text Entry Yes n/a Yes n/a
Side Keys Yes Yes - Yes
Text Keyboard, Hardware - Yes - Yes
Touch Screen - Yes - -
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client Yes n/a - n/a
EMS / Picture Messaging - n/a Yes n/a
MMS Yes n/a - n/a
Text Messaging Templates Yes n/a Yes n/a
Music
FM Radio Yes - - -
Music Player Yes n/a - n/a
Photo & Video
Video Calling Yes * n/a - n/a
Productivity
Alarm Yes n/a Yes n/a
Calculator Yes n/a Yes n/a
Calendar Yes n/a Yes n/a
To-Do List Yes n/a - n/a
Voice Memo Yes n/a - n/a
Software
Games Yes n/a Yes n/a
Java (J2ME) Yes n/a Yes n/a
Voice
Headset Jack (2.5 mm) - n/a - n/a
Speaker Phone Yes Yes Yes -
  * Some versions only
  Sony Ericsson K850 Palm Treo 650 (CDMA) Siemens C56 BlackBerry 7750
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Ericsson K850 Palm Treo 650 (CDMA) Siemens C56 BlackBerry 7750

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