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Phone Ericsson T28 World Nokia N90 Siemens SX66 / MDA III / PDA2K (HTC Blue Angel) Samsung SGH-X820
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? ?
Display Resolution & Type ? 352 x 416 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
220 x 176 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 500 mAh 760 mAh 1,490 mAh 650 mAh
Processor ? ? 400 MHz Intel XScale ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - 2 megapixel Yes 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - CIF (352 x 288) QCIF (176 x 144) ?
Front Camera - - - -
Weight 3.14 oz
(89g)
6.1 oz
(173g)
7.41 oz
(210g)
2.33 oz
(66g)
Dimensions 3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
4.41" x 2.01" x 0.94"
(112 x 51 x 23.9 mm)
4.92" x 2.83" x 0.75"
(125 x 72 x 19.1 mm)
4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
Form Factor Flip Clamshell Slide Slab
Platform / OS (proprietary) S60 (Symbian) Windows Mobile Professional (proprietary)
Network Bands

GSM: 900, 1900

WCDMA: 1

GSM: 900, 1800, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology - EDGE GPRS EDGE
Features 
Accessibility
Multiple Languages - n/a n/a Yes
Alerts
Extra Display - Yes - -
Ringer Profiles Yes Yes - -
Connectivity
Bluetooth - Yes
Classic Audio
Yes Yes
Classic Audio
Infrared (IR) - - Yes -
USB - Yes Yes Yes
Wi-Fi - - 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 Yes
Data & Network
Data Tethering Yes n/a n/a -
External Antenna Jack - 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 -
Touch Screen - - Yes -
Memory
Memory Card Slot - 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 Yes
Music
Music Player - n/a n/a -
Photo & Video
TV Output - - - Yes
Video Calling - n/a n/a -
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
  * Some versions only
  Ericsson T28 World Nokia N90 Siemens SX66 / MDA III / PDA2K (HTC Blue Angel) Samsung SGH-X820
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T28 World Nokia N90 Siemens SX66 / MDA III / PDA2K (HTC Blue Angel) Samsung SGH-X820

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