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Phone Siemens CX75 Sony Ericsson S710a Ericsson T39 Samsung M400
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Not yet released Released Released Released
Specifications 
Display Size ? ? ? 2.4" diag.
4 : 3
Display Resolution & Type 132 x 176 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
?
LCD (Grayscale)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 750 mAh 780 mAh ? 1,000 mAh
Processor ? ? ? 400 MHz Qualcomm QSC6155
RAM ? ? ? 128 MB
Storage ? raw hardware ? raw hardware ? raw hardware 256 MB
Main Camera 1 megapixel 1 megapixel - 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? QCIF (176 x 144) - -
Front Camera - - - -
Weight 3.46 oz
(98g)
4.83 oz
(137g)
3.03 oz
(86g)
3.7 oz
(105g)
Dimensions 4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
4.23" x 1.93" x 0.96"
(107 x 49 x 24.4 mm)
3.78" x 1.97" x 0.71"
(96 x 50 x 18 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
Form Factor Slab Swivel Flip Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 850, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 800, 850, 1900

Data Technology GPRS EDGE GPRS 1xRTT
Features 
GPS / Location - - - Yes
Accessibility
Adjustable Text Size - - - Yes
Hearing Aid Compatible - - - Yes
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - Yes - Yes
Alerts
Extra Display - - - Yes
Ringer Profiles Yes Yes Yes -
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) Yes Yes Yes -
USB Yes Yes - Yes
Micro-USB
Contacts
Picture ID Yes Yes - Yes
Ringer ID Yes Yes - Yes
Voice Dialing - Yes Yes Yes
Customization
Custom Graphics Yes Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers - - - Yes
Data & Network
Data Tethering Yes Yes Yes -
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client Yes Yes - -
EMS / Picture Messaging Yes Yes - -
MMS Yes Yes - Yes
Text Messaging Templates - Yes Yes Yes
Music
Headphone Jack (3.5mm) - - - 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 - -
Voice Memo Yes Yes Yes Yes
Software
Games Yes Yes Yes Yes
Java (J2ME) Yes Yes - -
Voice
Push-To-Talk Yes - - -
Speaker Phone Yes Yes - Yes
  Siemens CX75 Sony Ericsson S710a Ericsson T39 Samsung M400
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Siemens CX75 Sony Ericsson S710a Ericsson T39 Samsung M400

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