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Phone Samsung SCH-A990 Motorola ROKR E2 Samsung M400
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? ? 2.4" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery 1,000 mAh ? 1,000 mAh
Processor ? ? 400 MHz Qualcomm QSC6155
RAM ? ? 128 MB
Storage ? raw hardware ? raw hardware 256 MB
Main Camera 3 megapixel 1 megapixel 1 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture ? ? -
Front Camera - - -
Weight 4.4 oz
(125g)
3.77 oz
(107g)
3.7 oz
(105g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
Form Factor Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

CDMA: 800, 850, 1900

Data Technology EVDO r0 EDGE 1xRTT
Features 
Flashlight Yes - -
GPS / Location Yes - Yes
Accessibility
Adjustable Text Size - - Yes
Hearing Aid Compatible Yes
M3 (mostly compatible)
- Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes Yes Yes
TTY/TDD (Digital) Yes - Yes
Alerts
Extra Display Yes - Yes
Ringer Profiles - Yes -
Connectivity
Bluetooth 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
Custom Ringtones Yes Yes Yes
Real-Music Ringers Yes - Yes
Data & Network
Data Tethering Yes Yes -
WAP / Web Browser Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes
Side Keys Yes Yes Yes
Memory
Memory Card Slot Yes Yes -
Messaging
Email Client - Yes -
EMS / Picture Messaging Yes - -
MMS Yes Yes Yes
Text Messaging Templates Yes Yes Yes
Music
FM Radio - Yes -
Headphone Jack (3.5mm) - Yes Yes
Music Player Yes Yes -
Stereo Speakers Yes - -
Photo & Video
TV Output Yes - -
Productivity
Alarm Yes Yes Yes
Calculator Yes Yes Yes
Calendar Yes Yes Yes
To-Do List - Yes -
Voice Memo Yes Yes Yes
Software
BREW Yes - -
Games Yes Yes Yes
Java (J2ME) - Yes -
Voice
Speaker Phone Yes Yes Yes
  Samsung SCH-A990 Motorola ROKR E2 Samsung M400
  X > < X > < X

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Phone Samsung SCH-A990 Motorola ROKR E2 Samsung M400

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