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Phone Motorola i450 / i455 Kyocera 2325 Samsung SCH-A990 Samsung Knack U310
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? 2.2" diag.
4 : 3
Display Resolution & Type 130 x 130 pixels
LCD (STN)
? 240 x 320 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? ? 1,000 mAh 1,000 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - 3 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - ? -
Front Camera - - - -
Weight 4.5 oz
(128g)
4.34 oz
(123g)
4.4 oz
(125g)
3.63 oz
(103g)
Dimensions 3.5" x 2" x 1.1"
(89 x 51 x 27.9 mm)
4.72" x 1.89" x 0.95"
(120 x 48 x 24.1 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
Form Factor Clamshell Slab Clamshell Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

iDEN: 800

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology - 1xRTT EVDO r0 -
Features 
Flashlight - - Yes -
GPS / Location Yes Yes Yes Yes
Accessibility
Adjustable Text Size - - - Yes
Hearing Aid Compatible Yes - Yes Yes
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - Yes Yes
Ringer Profiles Yes - - -
Connectivity
Bluetooth - - Yes -
USB Yes - Yes -
Contacts
Picture ID Yes - Yes -
Ringer ID Yes - Yes -
Voice Dialing Yes Yes Yes Yes
Customization
Custom Graphics Yes - Yes -
Custom Ringtones Yes Yes Yes -
Real-Music Ringers Yes * - Yes -
Data & Network
Data Tethering Yes Yes Yes -
WAP / Web Browser Yes Yes Yes -
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes - Yes Yes
Memory
Memory Card Slot - - Yes -
Messaging
EMS / Picture Messaging - Yes Yes Yes
MMS Yes - Yes -
Text Messaging Templates Yes Yes Yes -
Music
Music Player - - Yes -
Stereo Speakers - - Yes -
Photo & Video
TV Output - - Yes -
Productivity
Alarm - Yes Yes Yes
Calculator - Yes Yes Yes
Calendar Yes Yes Yes Yes
Voice Memo Yes Yes Yes -
Software
BREW - - Yes -
Games Yes Yes Yes -
Java (J2ME) Yes - - -
Voice
Headset Jack (2.5 mm) Yes Yes - Yes
Push-To-Talk Yes - - -
Speaker Phone Yes Yes * Yes Yes
  * Some versions only
  Motorola i450 / i455 Kyocera 2325 Samsung SCH-A990 Samsung Knack U310
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola i450 / i455 Kyocera 2325 Samsung SCH-A990 Samsung Knack U310

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