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Phone Sony Ericsson Z550a Nokia 9290 Sony Ericsson S710a Samsung SGH-D307
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 1.9" diag.
4 : 3
? ? ?
Display Resolution & Type 176 x 220 pixels
(~148 ppi)
LCD (TFT/TFD)
640 x 200 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? 1,300 mAh 780 mAh ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel - 1 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? - QCIF (176 x 144) -
Front Camera - - - -
Weight 3.26 oz
(92g)
8.6 oz
(244g)
4.83 oz
(137g)
4.3 oz
(122g)
Dimensions 3.43" x 1.77" x 0.79"
(87 x 45 x 20.1 mm)
6.22" x 2.2" x 1.06"
(158 x 56 x 26.9 mm)
4.23" x 1.93" x 0.96"
(107 x 49 x 24.4 mm)
3.7" x 1.9" x 0.85"
(94 x 48 x 21.6 mm)
Form Factor Clamshell Clamshell Swivel Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 850, 900, 1800, 1900

*

GSM: 1900

GSM: 850, 1800, 1900

GSM: 850, 1800, 1900

Data Technology GPRS - EDGE EDGE
Features 
Accessibility
Hearing Aid Compatible - - - Yes
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display Yes Yes - Yes
Ringer Profiles Yes Yes Yes -
Connectivity
Bluetooth Yes - Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes Yes -
USB Yes - Yes Yes
Contacts
Picture ID Yes - Yes Yes
Ringer ID Yes - Yes Yes
Voice Dialing Yes - Yes Yes
Customization
Custom Graphics Yes - Yes Yes
Custom Ringtones Yes - Yes Yes
Real-Music Ringers Yes - - Yes
Data & Network
Data Tethering Yes Yes Yes Yes
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes - Yes Yes
Side Keys Yes - Yes Yes
Text Keyboard, Hardware - Yes - Yes
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client Yes - Yes Yes
EMS / Picture Messaging - - Yes Yes
MMS Yes - Yes Yes
Text Messaging Templates Yes Yes Yes Yes
Music
FM Radio Yes - - -
Music Player Yes - Yes -
Productivity
Alarm Yes Yes Yes Yes
Calculator Yes Yes Yes Yes
Calendar Yes Yes Yes Yes
To-Do List Yes Yes Yes Yes
Voice Memo Yes - Yes Yes
Software
Games Yes Yes Yes Yes
Java (J2ME) Yes Yes Yes Yes
Voice
Push-To-Talk Yes * - - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Sony Ericsson Z550a Nokia 9290 Sony Ericsson S710a Samsung SGH-D307
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Ericsson Z550a Nokia 9290 Sony Ericsson S710a Samsung SGH-D307

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