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Phone Ericsson T66 Sanyo SCP-4700 Palm Treo 650 (GSM) Ericsson T28 World Sony Ericsson Equinox
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? ? 2.4" diag.
4 : 3
Display Resolution & Type ? ? 320 x 320 pixels
LCD (TFT/TFD)
? 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery ? ? ? 500 mAh 900 mAh
Processor ? ? 312 MHz Intel XScale PXA270 ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - Yes - 3 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - CIF (352 x 288) - ?
Front Camera - - - - -
Weight 2.08 oz
(59g)
5 oz
(142g)
6.3 oz
(179g)
3.14 oz
(89g)
3.4 oz
(96g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
5.31" x 1.73" x 1.11"
(135 x 44 x 28.2 mm)
4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
3.7" x 2" x 0.6"
(94 x 51 x 15.2 mm)
Form Factor Slab Slab Slab Flip Clamshell
Platform / OS (proprietary) (proprietary) Palm OS (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 1900

AMPS: 850

GSM: 850, 900, 1800, 1900

GSM: 900, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology - - EDGE - HSDPA 3.6
Features 
GPS / Location - - n/a - Yes
Accessibility
Hearing Aid Compatible - - - - Yes
Multiple Languages Yes - n/a - Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes - - Yes Yes
Connectivity
Bluetooth - - Yes
Classic Audio
- Yes
Classic Audio
Infrared (IR) - - Yes - -
USB - - Yes - Yes
Contacts
Picture ID - - n/a - Yes
Ringer ID - - n/a - Yes
Voice Dialing - Yes n/a Yes Yes
Customization
Custom Graphics Yes - n/a - Yes
Custom Ringtones Yes - n/a Yes Yes
Real-Music Ringers - - n/a - Yes
Data & Network
Data Tethering - Yes n/a Yes Yes
WAP / Web Browser Yes Yes n/a - Yes
Input
Predictive Text Entry Yes Yes n/a - Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen - - Yes - -
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client - - n/a - Yes
EMS / Picture Messaging Yes - n/a - -
Instant Messaging - - n/a - Yes
MMS - - n/a - Yes
Text Messaging Templates Yes - n/a - Yes
Music
FM Radio - - - - Yes
Music Player - - n/a - Yes
Productivity
Alarm Yes Yes n/a Yes Yes
Calculator Yes Yes n/a Yes Yes
Calendar Yes Yes n/a - Yes
To-Do List Yes Yes n/a - Yes
Voice Memo - Yes n/a - Yes
Software
Games Yes Yes n/a Yes Yes
Java (J2ME) - - n/a - Yes
Voice
Headset Jack (2.5 mm) - Yes n/a - -
Speaker Phone - Yes Yes - Yes
  * Some versions only
  Ericsson T66 Sanyo SCP-4700 Palm Treo 650 (GSM) Ericsson T28 World Sony Ericsson Equinox
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T66 Sanyo SCP-4700 Palm Treo 650 (GSM) Ericsson T28 World Sony Ericsson Equinox

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