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Phone BlackBerry 7750 Kyocera K404 Samsung SGH-X640
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? ? ?
Display Resolution & Type 240 x 240 pixels
LCD (Color)
104 x 90 pixels
LCD (STN)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery ? 900 mAh 800 mAh
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera - - Yes
Wide Camera - - -
Tele Camera - - -
Video Capture - - -
Front Camera - - -
Weight 5.01 oz
(142g)
3.52 oz
(100g)
3 oz
(85g)
Dimensions 4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
4.45" x 1.89" x 0.91"
(113 x 48 x 23.1 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
Form Factor Slab Slab Clamshell
Platform / OS BlackBerry OS (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

Data Technology 1xRTT 1xRTT GPRS
Features 
Flashlight - Yes -
GPS / Location n/a Yes -
Accessibility
Multiple Languages n/a Yes Yes
TTY/TDD (Digital) Yes Yes -
Alerts
Ringer Profiles Yes - -
Connectivity
USB Yes - -
Contacts
Picture ID n/a - Yes
Ringer ID n/a - Yes
Voice Dialing n/a Yes -
Customization
Changeable Body Plates - Yes -
Custom Graphics n/a Yes Yes
Custom Ringtones n/a Yes Yes
Data & Network
WAP / Web Browser n/a - Yes
Input
Predictive Text Entry n/a Yes Yes
Side Keys Yes - Yes
Text Keyboard, Hardware Yes - -
Messaging
Email Client n/a - -
EMS / Picture Messaging n/a Yes Yes
MMS n/a - Yes
Text Messaging Templates n/a - Yes
Productivity
Alarm n/a Yes Yes
Calculator n/a Yes Yes
Calendar n/a Yes Yes
To-Do List n/a - Yes
Voice Memo n/a - Yes
Software
Games n/a Yes * Yes
Java (J2ME) n/a - Yes
Voice
Headset Jack (2.5 mm) n/a Yes Yes
Speaker Phone - - Yes
  * Some versions only
  BlackBerry 7750 Kyocera K404 Samsung SGH-X640
  X > < X > < X

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

 
Phone BlackBerry 7750 Kyocera K404 Samsung SGH-X640

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