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Phone Pantech Matrix Pro C820 Palm Treo 680 Sony Ericsson T68i 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)
320 x 320 pixels
LCD (TFT/TFD)
101 x 80 pixels
LCD (STN)
?
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)
5.5 oz
(156g)
2.96 oz
(84g)
2.08 oz
(59g)
Dimensions 4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
4.4" x 2.3" x 0.8"
(112 x 58 x 20.3 mm)
3.94" x 1.89" x 0.79"
(100 x 48 x 20.1 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 Palm OS (proprietary) (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology HSDPA 3.6 EDGE GPRS -
Features 
GPS / Location n/a n/a - -
Accessibility
Multiple Languages n/a n/a Yes 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 n/a Yes -
Ringer ID n/a n/a Yes -
Voice Dialing n/a n/a Yes -
Customization
Custom Graphics n/a n/a Yes Yes
Custom Ringtones n/a n/a Yes Yes
Real-Music Ringers n/a n/a - -
Data & Network
Data Tethering n/a n/a Yes -
External Antenna Jack n/a n/a - -
WAP / Web Browser n/a n/a Yes Yes
Input
Predictive Text Entry n/a n/a Yes 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 n/a Yes -
EMS / Picture Messaging n/a n/a Yes Yes
Instant Messaging n/a n/a - -
MMS n/a n/a Yes -
Text Messaging Templates n/a n/a Yes Yes
Music
Music Player n/a n/a - -
Productivity
Alarm n/a n/a Yes Yes
Calculator n/a n/a Yes Yes
Calendar n/a n/a Yes Yes
To-Do List n/a n/a Yes Yes
Voice Memo n/a n/a Yes -
Software
Games n/a n/a Yes 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 Palm Treo 680 Sony Ericsson T68i Ericsson T66
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

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

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