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Phone Samsung SCH-A770 Samsung SPH-N270 (Matrix Phone) Sharp TM100
Current U.S. Carriers (none) (none) (none)
Global Availability Not yet released Released Released
Specifications 
Display Size ? ? ?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery 1,100 mAh 1,000 mAh 780 mAh
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel - Yes
Wide Camera - - -
Tele Camera - - -
Video Capture ? - ?
Front Camera - - -
Weight ? 4.66 oz
(132g)
3.7 oz
(105g)
Dimensions ? 4.53" x 2.28" x 0.79"
(115 x 58 x 20.1 mm)
3.94" x 1.93" x 0.76"
(100 x 49 x 19.3 mm)
Form Factor Clamshell Slide Slide
Platform / OS (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

Data Technology 1xRTT - GPRS
Features 
GPS / Location Yes Yes -
Accessibility
Multiple Languages Yes Yes Yes
TTY/TDD (Digital) Yes - -
Alerts
Extra Display Yes - -
Ringer Profiles Yes - Yes
Connectivity
Infrared (IR) - - Yes
USB - - Yes
Contacts
Picture ID Yes Yes Yes
Ringer ID Yes Yes Yes
Voice Dialing Yes Yes -
Customization
Custom Graphics Yes - Yes
Custom Ringtones Yes - Yes
Data & Network
Data Tethering Yes - Yes
WAP / Web Browser Yes - Yes
Input
Predictive Text Entry Yes Yes Yes
Side Keys Yes - Yes
Memory
Memory Card Slot Yes - -
Messaging
Email Client - - Yes
EMS / Picture Messaging - - Yes
MMS Yes - Yes
Text Messaging Templates Yes - Yes
Productivity
Alarm Yes Yes Yes
Calculator Yes Yes Yes
Calendar Yes Yes Yes
To-Do List Yes Yes -
Voice Memo Yes Yes Yes
Software
BREW Yes - -
Games Yes - Yes
Java (J2ME) - - Yes
Voice
Call Screening Yes - -
Headset Jack (2.5 mm) Yes Yes -
  Samsung SCH-A770 Samsung SPH-N270 (Matrix Phone) Sharp TM100
  X > < X > < X

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

 
Phone Samsung SCH-A770 Samsung SPH-N270 (Matrix Phone) Sharp TM100

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