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Phone Cal-Comp EZ Sony Ericsson K850 BlackBerry 7750
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 2.2" diag.
4 : 3
?
Display Resolution & Type 128 x 128 pixels
LCD (STN)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
Display Refresh ? ? ?
Battery 800 mAh ? ?
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera - 5 megapixel -
Wide Camera - - -
Tele Camera - - -
Video Capture - ? -
Front Camera - - -
Weight 2.47 oz
(70g)
4.2 oz
(119g)
5.01 oz
(142g)
Dimensions 4.04" x 1.71" x 0.63"
(103 x 43 x 16 mm)
4" x 1.9" x 0.7"
(102 x 48 x 17.8 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Slab Slab Slab
Platform / OS (proprietary) (proprietary) BlackBerry OS
Network Bands

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology 1xRTT HSDPA 3.6 1xRTT
Features 
GPS / Location Yes - n/a
Accessibility
Multiple Languages Yes Yes n/a
TTY/TDD (Digital) - Yes Yes
Alerts
Ringer Profiles - Yes Yes
Connectivity
Bluetooth - Yes -
USB Yes
Mini-USB
Yes Yes
Contacts
Picture ID - Yes n/a
Ringer ID - Yes n/a
Voice Dialing - Yes n/a
Customization
Custom Graphics - Yes n/a
Custom Ringtones - Yes n/a
Real-Music Ringers - Yes n/a
Data & Network
Data Tethering - Yes n/a
WAP / Web Browser - Yes n/a
Input
Predictive Text Entry - Yes n/a
Side Keys - Yes Yes
Text Keyboard, Hardware - - Yes
Memory
Memory Card Slot - Yes -
Messaging
Email Client - Yes n/a
MMS - Yes n/a
Text Messaging Templates Yes Yes n/a
Music
FM Radio - Yes -
Music Player - Yes n/a
Photo & Video
Video Calling - Yes * n/a
Productivity
Alarm Yes Yes n/a
Calculator Yes Yes n/a
Calendar Yes Yes n/a
To-Do List Yes Yes n/a
Voice Memo Yes * Yes n/a
Software
Games - Yes n/a
Java (J2ME) - Yes n/a
Voice
Headset Jack (2.5 mm) Yes - n/a
Speaker Phone - Yes -
  * Some versions only
  Cal-Comp EZ Sony Ericsson K850 BlackBerry 7750
  X > < X > < X

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

 
Phone Cal-Comp EZ Sony Ericsson K850 BlackBerry 7750

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