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Phone Ericsson R278d Sanyo SCP-2400 Nokia 3220 Samsung SGH-E640
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? ?
Display Resolution & Type 101 x 40 pixels 128 x 160 pixels
LCD (STN)
128 x 128 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? ? 760 mAh 800 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - Yes 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - ? QCIF (176 x 144)
Front Camera - - - -
Weight 9.28 oz
(263g)
3.5 oz
(99g)
3.03 oz
(86g)
3.17 oz
(90g)
Dimensions 5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
3.31" x 1.83" x 1.01"
(84 x 46 x 25.7 mm)
4.11" x 1.74" x 0.74"
(104 x 44 x 18.8 mm)
3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
Form Factor Slab Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

TDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

GSM: 850, 1800, 1900

*

GSM: 900, 1800, 1900

Data Technology - 1xRTT EDGE GPRS
Features 
GPS / Location - Yes - -
Accessibility
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
- -
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - Yes - Yes
Ringer Profiles Yes - Yes -
Connectivity
Bluetooth - - - Yes
USB - Yes Yes Yes
Contacts
Picture ID - Yes Yes Yes
Ringer ID - Yes Yes Yes
Voice Dialing - Yes Yes -
Customization
Changeable Body Plates - - Yes -
Custom Graphics - Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers - - - Yes
Data & Network
Data Tethering Yes Yes Yes -
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes - Yes
Messaging
Email Client - - Yes Yes
EMS / Picture Messaging - - Yes Yes
Instant Messaging - - Yes -
MMS - - Yes Yes
Text Messaging Templates - Yes Yes Yes
Music
Music Player - - - Yes
Productivity
Alarm Yes Yes Yes Yes
Calculator - Yes Yes Yes
Calendar - Yes Yes Yes
To-Do List - - - Yes
Voice Memo - Yes Yes Yes
Software
Games - Yes Yes Yes
Java (J2ME) - Yes Yes Yes
Voice
Call Screening - Yes - -
Headset Jack (2.5 mm) - Yes - -
Push-To-Talk - Yes - -
Speaker Phone - Yes Yes Yes
  Ericsson R278d Sanyo SCP-2400 Nokia 3220 Samsung SGH-E640
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Phone Ericsson R278d Sanyo SCP-2400 Nokia 3220 Samsung SGH-E640

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