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Phone Sony Ericsson T237 / T290a Samsung SGH-A657 Pantech Duo C810
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? ? 2.2" diag.
4 : 3
Display Resolution & Type 101 x 80 pixels
LCD (STN)
176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery ? 1,420 mAh 1,320 mAh
Processor ? ? ARM 920t PXA27x
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera - - 1 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture - - QVGA (320 x 240)
Front Camera - - -
Weight 2.79 oz
(79g)
4.34 oz
(123g)
3.88 oz
(110g)
Dimensions 4" x 1.71" x 0.71"
(102 x 43 x 18 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
Form Factor Slab Slab Slide
Platform / OS (proprietary) (proprietary) Windows Mobile Standard
Network Bands

GSM: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS HSDPA 3.6 HSDPA 1.8
Features 
Flashlight - Yes -
GPS / Location - Yes n/a
Ruggedized - Yes -
Accessibility
Multiple Languages Yes Yes n/a
TTY/TDD (Digital) Yes Yes -
Alerts
Ringer Profiles - - Yes
Connectivity
Bluetooth - Yes Yes
USB Yes Yes Yes
Contacts
Picture ID Yes Yes n/a
Ringer ID Yes Yes n/a
Voice Dialing Yes - n/a
Customization
Custom Graphics Yes Yes n/a
Custom Ringtones Yes Yes n/a
Real-Music Ringers - Yes n/a
Data & Network
Data Tethering - Yes n/a
WAP / Web Browser Yes Yes n/a
Input
Predictive Text Entry Yes Yes n/a
Side Keys Yes Yes Yes
Text Keyboard, Hardware - - Yes
Memory
Memory Card Slot - Yes Yes
Messaging
Email Client Yes Yes n/a
EMS / Picture Messaging Yes - n/a
Instant Messaging - Yes n/a
MMS Yes Yes n/a
Text Messaging Templates Yes Yes n/a
Music
Music Player - Yes n/a
Productivity
Alarm Yes Yes n/a
Calculator Yes Yes n/a
Calendar Yes Yes n/a
To-Do List - Yes n/a
Voice Memo Yes Yes n/a
Software
Games Yes Yes n/a
Java (J2ME) - Yes n/a
Voice
Push-To-Talk - Yes -
Speaker Phone Yes Yes Yes
  Sony Ericsson T237 / T290a Samsung SGH-A657 Pantech Duo C810
  X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Ericsson T237 / T290a Samsung SGH-A657 Pantech Duo C810

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