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Phone Pantech Matrix Pro C820 Sony Ericsson T68i Palm Treo 680 Ericsson T66
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? ? ?
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
101 x 80 pixels
LCD (STN)
320 x 320 pixels
LCD (TFT/TFD)
?
Display Refresh ? ? ? ?
Battery 1,320 mAh 700 mAh ? ?
Processor 528 MHz ARM 11 ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 2 megapixel - Yes -
Wide Camera - - - -
Tele Camera - - - -
Video Capture QCIF (176 x 144) - CIF (352 x 288) -
Front Camera - - - -
Weight 5.34 oz
(151g)
2.96 oz
(84g)
5.5 oz
(156g)
2.08 oz
(59g)
Dimensions 4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
3.94" x 1.89" x 0.79"
(100 x 48 x 20.1 mm)
4.4" x 2.3" x 0.8"
(112 x 58 x 20.3 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
Form Factor Slide Slab Slab Slab
Platform / OS Windows Mobile Standard (proprietary) Palm OS (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology HSDPA 3.6 GPRS EDGE -
Features 
GPS / Location n/a - n/a -
Accessibility
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) Yes - Yes -
Alerts
Ringer Profiles Yes Yes - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - Yes Yes -
USB Yes - Yes -
Contacts
Picture ID n/a Yes n/a -
Ringer ID n/a Yes n/a -
Voice Dialing n/a Yes n/a -
Customization
Custom Graphics n/a Yes n/a Yes
Custom Ringtones n/a Yes n/a Yes
Real-Music Ringers n/a - n/a -
Data & Network
Data Tethering n/a Yes n/a -
External Antenna Jack n/a - n/a -
WAP / Web Browser n/a Yes n/a Yes
Input
Predictive Text Entry n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware Yes - Yes -
Touch Screen - - Yes -
Memory
Memory Card Slot Yes - Yes -
Messaging
Email Client n/a Yes n/a -
EMS / Picture Messaging n/a Yes n/a Yes
Instant Messaging n/a - n/a -
MMS n/a Yes n/a -
Text Messaging Templates n/a Yes n/a Yes
Music
Music Player n/a - n/a -
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a Yes
To-Do List n/a Yes n/a Yes
Voice Memo n/a Yes n/a -
Software
Games n/a Yes n/a Yes
Java (J2ME) n/a - n/a -
Voice
Headset Jack (2.5 mm) n/a - n/a -
Speaker Phone Yes - Yes -
  Pantech Matrix Pro C820 Sony Ericsson T68i Palm Treo 680 Ericsson T66
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Pantech Matrix Pro C820 Sony Ericsson T68i Palm Treo 680 Ericsson T66

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