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Phone Samsung SGH-X640 Sanyo SCP-3100 Alcatel 665 Samsung Glyde U940
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 1.8" diag.
4 : 3
2.8" diag.
16.5 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 800 mAh 1,000 mAh 650 mAh 1,000 mAh
Processor ? ? ? ?
RAM ? ? 16 MB ?
Storage ? raw hardware ? raw hardware 32 MB ? raw hardware
Main Camera Yes Yes 2 megapixel 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - QCIF (176 x 144) QVGA (320 x 240)
Front Camera - - - -
Weight 3 oz
(85g)
3.5 oz
(99g)
2.72 oz
(77g)
4.2 oz
(119g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.31" x 1.83" x 1.01"
(84 x 46 x 25.7 mm)
3.78" x 1.89" x 0.66"
(96 x 48 x 16.8 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
Form Factor Clamshell Clamshell Clamshell Slide
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 850, 1900

CDMA: 850, 1900

Data Technology GPRS 1xRTT - EVDO r0
Features 
GPS / Location - Yes - Yes
Accessibility
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
Yes
M4 (very compatible)
Yes
M4 (very compatible)
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - Yes - Yes
Alerts
Extra Display - Yes Yes -
Ringer Profiles - - Yes -
Connectivity
Bluetooth - - Yes Yes
USB - Yes Yes
Micro-USB
Yes
Contacts
Picture ID Yes Yes Yes Yes
Ringer ID Yes Yes Yes Yes
Voice Dialing - 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
External Antenna Jack - Yes - -
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen - - - Yes
Memory
Memory Card Slot - - Yes Yes
Messaging
EMS / Picture Messaging Yes - - -
Instant Messaging - - Yes -
MMS Yes - Yes Yes
Text Messaging Templates Yes - Yes Yes
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) - - Yes -
Music Player - - Yes 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 -
Software
BREW - - - Yes
Games Yes Yes Yes Yes
Java (J2ME) Yes Yes Yes -
Voice
Call Screening - Yes - -
Headset Jack (2.5 mm) Yes Yes - Yes
Push-To-Talk - Yes - -
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-X640 Sanyo SCP-3100 Alcatel 665 Samsung Glyde U940
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Phone Samsung SGH-X640 Sanyo SCP-3100 Alcatel 665 Samsung Glyde U940

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