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Phone Ericsson T28 World Palm Treo 650 (CDMA) Sony Ericsson P910 Siemens M75
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Not yet released
Specifications 
Display Size ? ? ? ?
Display Resolution & Type ? 320 x 320 pixels
LCD (TFT/TFD)
208 x 320 pixels
LCD (TFT/TFD)
132 x 176 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 500 mAh ? ? 750 mAh
Processor ? 312 MHz Intel XScale PXA270 ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - Yes Yes 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - QVGA (320 x 240) QCIF (176 x 144) ?
Front Camera - - - -
Weight 3.14 oz
(89g)
6.3 oz
(179g)
5.47 oz
(155g)
3.88 oz
(110g)
Dimensions 3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
4.53" x 2.28" x 1.02"
(115 x 58 x 25.9 mm)
4.35" x 2.03" x 0.82"
(110 x 52 x 20.8 mm)
Form Factor Flip Slab Flip Slab
Platform / OS (proprietary) Palm OS UIQ (Symbian) (proprietary)
Network Bands

GSM: 900, 1900

CDMA: 850, 1900

GSM: 850, 1800, 1900

*

GSM: 900, 1800, 1900

Data Technology - 1xRTT GPRS GPRS
Features 
GPS / Location - n/a n/a -
Ruggedized - - - Yes
Accessibility
Multiple Languages - n/a n/a Yes
TTY/TDD (Digital) - - Yes -
Alerts
Ringer Profiles Yes - Yes Yes
Connectivity
Bluetooth - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes Yes Yes
USB - - Yes Yes
Contacts
Picture ID - n/a n/a Yes
Ringer ID - n/a n/a Yes
Voice Dialing Yes n/a n/a -
Customization
Custom Graphics - n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Real-Music Ringers - n/a n/a -
Data & Network
Data Tethering Yes n/a n/a Yes
WAP / Web Browser - n/a n/a Yes
Input
Predictive Text Entry - n/a n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes Yes -
Touch Screen - Yes Yes -
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - n/a n/a Yes
EMS / Picture Messaging - n/a n/a Yes
MMS - n/a n/a Yes
Text Messaging Templates - n/a n/a -
Music
Music Player - n/a n/a Yes
Productivity
Alarm Yes n/a n/a Yes
Calculator Yes n/a n/a Yes
Calendar - n/a n/a Yes
To-Do List - n/a n/a Yes
Voice Memo - n/a n/a Yes
Software
Games Yes n/a n/a Yes
Java (J2ME) - n/a n/a Yes
Voice
Headset Jack (2.5 mm) - n/a n/a -
Push-To-Talk - - - Yes
Speaker Phone - Yes Yes Yes
  Ericsson T28 World Palm Treo 650 (CDMA) Sony Ericsson P910 Siemens M75
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T28 World Palm Treo 650 (CDMA) Sony Ericsson P910 Siemens M75

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