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Phone Samsung Messager R450 Kyocera 3225 BlackBerry Curve 8300 Samsung Trance SCH-U490
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
? ? 2.1" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
?
LCD (Grayscale)
320 x 240 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 960 mAh ? ? ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel - 2 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - - -
Front Camera - - - -
Weight 4.58 oz
(130g)
4.23 oz
(120g)
3.92 oz
(111g)
3.53 oz
(100g)
Dimensions 4.4" x 2" x 0.7"
(112 x 51 x 17.8 mm)
3.4" x 1.97" x 1.02"
(86 x 50 x 25.9 mm)
4.2" x 2.36" x 0.61"
(107 x 60 x 15.5 mm)
4" x 1.97" x 0.55"
(102 x 50 x 14 mm)
Form Factor Slab Slab Slab Slide
Platform / OS (proprietary) (proprietary) BlackBerry OS (proprietary)
Network Bands

CDMA: 850, 1700, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology 1xRTT 1xRTT EDGE 1xRTT
Features 
GPS / Location Yes Yes n/a Yes
Accessibility
Adjustable Text Size - - n/a Yes
Hearing Aid Compatible Yes
M3 (mostly compatible)
- - Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Ringer Profiles - - Yes -
Connectivity
Bluetooth Yes - Yes Yes
USB Yes - Yes Yes
Contacts
Picture ID Yes - n/a Yes
Ringer ID Yes - n/a Yes
Voice Dialing Yes Yes n/a Yes
Customization
Custom Graphics Yes Yes n/a Yes
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers - - n/a Yes
Data & Network
Data Tethering - Yes n/a Yes
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes - Yes Yes
Text Keyboard, Hardware Yes - Yes -
Memory
Memory Card Slot Yes - Yes Yes
Messaging
Email Client - - n/a -
EMS / Picture Messaging - Yes n/a -
Instant Messaging - - n/a -
MMS Yes - n/a Yes
Text Messaging Templates Yes - n/a Yes
Music
Headphone Jack (3.5mm) - - Yes Yes
Music Player Yes - n/a Yes
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a Yes
Calendar Yes Yes n/a Yes
To-Do List - - n/a -
Voice Memo Yes - n/a Yes
Software
BREW Yes Yes n/a Yes
Games Yes Yes n/a Yes
Java (J2ME) - - n/a -
Voice
Headset Jack (2.5 mm) - Yes n/a -
Push-To-Talk - - Yes * -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung Messager R450 Kyocera 3225 BlackBerry Curve 8300 Samsung Trance SCH-U490
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Messager R450 Kyocera 3225 BlackBerry Curve 8300 Samsung Trance SCH-U490

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