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Phone Samsung M520 Ericsson T39 Samsung Wafer R510 Samsung SCH-R300
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
? 1.9" diag.
4 : 3
1.7" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
?
LCD (Grayscale)
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~123 ppi)
LCD (STN)
Display Refresh ? ? ? ?
Battery ? ? 800 mAh 800 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel - 1 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? - ? -
Front Camera - - - -
Weight 2.75 oz
(78g)
3.03 oz
(86g)
2.47 oz
(70g)
2.9 oz
(82g)
Dimensions 4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
3.78" x 1.97" x 0.71"
(96 x 50 x 18 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
3.5" x 1.8" x 0.78"
(89 x 46 x 19.8 mm)
Form Factor Slide Flip Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology EVDO r0 GPRS EVDO r0 1xRTT
Features 
GPS / Location Yes - Yes Yes
Accessibility
Hearing Aid Compatible Yes - Yes Yes
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display - - - Yes
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
HSP, DUN, OPP, Sync
Yes
Classic Audio
-
Infrared (IR) - Yes - -
USB Yes - - -
Contacts
Picture ID Yes - Yes Yes
Ringer ID Yes - - Yes
Voice Dialing Yes Yes Yes Yes
Customization
Custom Graphics Yes Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes
Data & Network
Data Tethering 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
Instant Messaging - - - Yes
MMS - - Yes -
Text Messaging Templates Yes Yes - Yes
Music
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 - - -
Voice Memo Yes Yes Yes Yes
Software
BREW - - Yes Yes
Games Yes Yes Yes Yes
Java (J2ME) Yes - - -
Voice
Speaker Phone Yes - Yes Yes
  Samsung M520 Ericsson T39 Samsung Wafer R510 Samsung SCH-R300
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung M520 Ericsson T39 Samsung Wafer R510 Samsung SCH-R300

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