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Phone Samsung SGH-T239 Samsung M400 Samsung Wafer R510 Motorola ROKR E2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
1.9" diag.
4 : 3
?
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? 1,000 mAh 800 mAh ?
Processor ? 400 MHz Qualcomm QSC6155 ? ?
RAM ? 128 MB ? ?
Storage ? raw hardware 256 MB ? raw hardware ? raw hardware
Main Camera Yes 1 megapixel 1 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - ? ?
Front Camera - - - -
Weight 3.34 oz
(95g)
3.7 oz
(105g)
2.47 oz
(70g)
3.77 oz
(107g)
Dimensions 3.78" x 1.87" x 0.68"
(96 x 47 x 17.3 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
Form Factor Slide Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 850, 1900

CDMA: 800, 850, 1900

CDMA: 850, 1900

GSM: 900, 1800, 1900

Data Technology GPRS 1xRTT EVDO r0 EDGE
Features 
GPS / Location - Yes Yes -
Accessibility
Adjustable Text Size - Yes - -
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - Yes - -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
USB - Yes
Micro-USB
- Yes
Contacts
Picture ID Yes 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 - -
Data & Network
Data Tethering - - - 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 - - -
Instant Messaging Yes - - -
MMS Yes 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 -
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
BREW - - Yes -
Games Yes Yes Yes Yes
Java (J2ME) Yes - - Yes
Voice
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-T239 Samsung M400 Samsung Wafer R510 Motorola ROKR E2
  X > < X > < X > < X

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

 
Phone Samsung SGH-T239 Samsung M400 Samsung Wafer R510 Motorola ROKR E2

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