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Phone Kyocera KX12 Samsung Knack U310 Palm Pre 2 (GSM) Amazon Fire Motorola i450 / i455
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2.2" diag.
4 : 3
3.1" diag.
5 : 3
4.7" diag.
16 : 9
?
Display Resolution & Type 128 x 128 pixels
LCD (STN)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
130 x 130 pixels
LCD (STN)
Display Refresh ? ? ? ? ?
Battery 1,800 mAh 1,000 mAh 1,150 mAh 2,400 mAh ?
Processor ? ? 1 GHz TI 3630 2.2 GHz Qualcomm Snapdragon 800 ?
RAM ? ? ? 2 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 32 GB * ? raw hardware
Main Camera - - 5 megapixel 13 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - VGA (640 x 480) 1080p HD -
Front Camera - - - 2 megapixel -
Weight 4.62 oz
(131g)
3.63 oz
(103g)
5.1 oz
(145g)
5.64 oz
(160g)
4.5 oz
(128g)
Dimensions 4.33" x 1.97" x 1.02"
(110 x 50 x 25.9 mm)
3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
3.96" x 2.35" x 0.67"
(101 x 60 x 17 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
3.5" x 2" x 1.1"
(89 x 51 x 27.9 mm)
Form Factor Slab Clamshell Slide Slab Clamshell
Platform / OS (proprietary) (proprietary) webOS (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

iDEN: 800

Data Technology 1xRTT - HSDPA 3.6 LTE (Cat 4) -
Features 
Flashlight Yes - - Yes -
GPS / Location Yes Yes n/a Yes Yes
Ruggedized Yes - - - -
Accessibility
Adjustable Text Size - Yes n/a - -
Hearing Aid Compatible - Yes - Yes Yes
Multiple Languages Yes Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - Yes - - Yes
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - - Yes
Classic Audio
Yes
Classic Audio
-
Mobile Hotspot - - n/a Yes -
NFC - - - Yes -
USB - - Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi - - Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes - n/a Yes Yes
Ringer ID Yes - n/a Yes Yes
Voice Dialing Yes Yes n/a Yes Yes
Customization
Custom Graphics Yes - n/a - Yes
Custom Ringtones Yes - n/a Yes Yes
Real-Music Ringers - - n/a - Yes *
Data & Network
Data Tethering Yes - n/a Yes Yes
WAP / Web Browser Yes - n/a Yes Yes
Input
Predictive Text Entry Yes Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen - - Yes Yes -
Messaging
Email Client - - n/a Yes -
EMS / Picture Messaging Yes Yes n/a - -
Instant Messaging - - n/a - -
MMS - - n/a Yes Yes
Text Messaging Templates Yes - n/a Yes Yes
Music
Headphone Jack (3.5mm) - - Yes Yes -
Music Player - - n/a Yes -
Stereo Speakers - - - Yes -
Photo & Video
Miracast - - - Yes -
TV Output - - - Yes -
Productivity
Alarm Yes Yes n/a Yes -
Calculator Yes Yes n/a Yes -
Calendar Yes Yes n/a Yes Yes
To-Do List - - n/a - -
Voice Memo Yes - n/a Yes Yes
Software
BREW Yes * - n/a - -
Games Yes - n/a Yes Yes
Java (J2ME) - - n/a - Yes
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) Yes Yes n/a - Yes
Push-To-Talk Yes - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Kyocera KX12 Samsung Knack U310 Palm Pre 2 (GSM) Amazon Fire Motorola i450 / i455
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Kyocera KX12 Samsung Knack U310 Palm Pre 2 (GSM) Amazon Fire Motorola i450 / i455

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