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Phone Samsung SGH-E640 BlackBerry 7750 Samsung SGH-X640 Audiovox CDM-8150X
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? ?
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
128 x 160 pixels
LCD (TFT/TFD)
?
Display Refresh ? ? ? ?
Battery 800 mAh ? 800 mAh ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel - Yes -
Wide Camera - - - -
Tele Camera - - - -
Video Capture QCIF (176 x 144) - - -
Front Camera - - - -
Weight 3.17 oz
(90g)
5.01 oz
(142g)
3 oz
(85g)
3.88 oz
(110g)
Dimensions 3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.88" x 1.89" x 0.71"
(124 x 48 x 18 mm)
Form Factor Clamshell Slab Clamshell Slab
Platform / OS (proprietary) BlackBerry OS (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS 1xRTT GPRS 1xRTT
Features 
GPS / Location - n/a - -
Accessibility
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) - Yes - -
Alerts
Extra Display Yes - - -
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes - - -
USB Yes Yes - -
Contacts
Picture ID Yes n/a Yes -
Ringer ID Yes n/a Yes -
Voice Dialing - n/a - Yes
Customization
Custom Graphics Yes n/a Yes -
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers Yes n/a - -
Data & Network
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - -
Messaging
Email Client Yes n/a - -
EMS / Picture Messaging Yes n/a Yes -
MMS Yes n/a Yes -
Text Messaging Templates Yes n/a Yes -
Music
Music Player Yes n/a - -
Productivity
Alarm Yes n/a Yes -
Calculator Yes n/a Yes Yes
Calendar Yes n/a Yes Yes
To-Do List Yes n/a Yes -
Voice Memo Yes n/a Yes Yes
Software
Games Yes n/a Yes -
Java (J2ME) Yes n/a Yes -
Voice
Headset Jack (2.5 mm) - n/a Yes Yes
Speaker Phone Yes - Yes -
  Samsung SGH-E640 BlackBerry 7750 Samsung SGH-X640 Audiovox CDM-8150X
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Phone Samsung SGH-E640 BlackBerry 7750 Samsung SGH-X640 Audiovox CDM-8150X

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