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Phone Ericsson T66 Samsung M400 Samsung SCH-A990 Sony Ericsson TM506
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
? 2.2" diag.
4 : 3
Display Resolution & Type ? 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? 1,000 mAh 1,000 mAh 950 mAh
Processor ? 400 MHz Qualcomm QSC6155 ? ?
RAM ? 128 MB ? ?
Storage ? raw hardware 256 MB ? raw hardware ? raw hardware
Main Camera - 1 megapixel 3 megapixel 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - ? QVGA (320 x 240)
Front Camera - - - -
Weight 2.08 oz
(59g)
3.7 oz
(105g)
4.4 oz
(125g)
3.56 oz
(101g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.74" x 1.86" x 0.7"
(95 x 47 x 17.8 mm)
Form Factor Slab Clamshell Clamshell Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 800, 850, 1900

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 1800, 1900

Data Technology - 1xRTT EVDO r0 HSDPA 3.6
Features 
Flashlight - - Yes -
GPS / Location - Yes Yes Yes
Accessibility
Adjustable Text Size - Yes - -
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
-
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Extra Display - Yes Yes Yes
Ringer Profiles Yes - - Yes
Connectivity
Bluetooth - Yes Yes Yes
USB - Yes
Micro-USB
Yes Yes
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 Yes Yes
Data & Network
Data Tethering - - Yes -
External Antenna Jack - - - 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
EMS / Picture Messaging Yes - Yes -
Instant Messaging - - - Yes
MMS - Yes Yes Yes
Text Messaging Templates Yes Yes Yes Yes
Music
Headphone Jack (3.5mm) - Yes - -
Music Player - - Yes Yes
Stereo Speakers - - Yes -
Photo & Video
TV Output - - 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
Software
BREW - - Yes -
Games Yes Yes Yes Yes
Java (J2ME) - - - Yes
Voice
Speaker Phone - Yes Yes Yes
  Ericsson T66 Samsung M400 Samsung SCH-A990 Sony Ericsson TM506
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T66 Samsung M400 Samsung SCH-A990 Sony Ericsson TM506

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