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Phone Kyocera KX12 Samsung Knack U310 Amazon Fire HTC Droid Eris Sanyo MM-7400
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2.2" diag.
4 : 3
4.7" diag.
16 : 9
3.2" diag.
5 : 3
?
Display Resolution & Type 128 x 128 pixels
LCD (STN)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 1,800 mAh 1,000 mAh 2,400 mAh 1,300 mAh 1,000 mAh
Processor ? ? 2.2 GHz Qualcomm Snapdragon 800 528 MHz MSM7600 ?
RAM ? ? 2 GB ? ?
Storage ? raw hardware ? raw hardware 32 GB * ? raw hardware ? raw hardware
Main Camera - - 13 megapixel 5 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - 1080p HD CIF (352 x 288) QCIF (176 x 144)
Front Camera - - 2 megapixel - -
Weight 4.62 oz
(131g)
3.63 oz
(103g)
5.64 oz
(160g)
4.43 oz
(126g)
4.06 oz
(115g)
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)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
4.45" x 2.19" x 0.52"
(113 x 55 x 13.2 mm)
3.64" x 1.97" x 1.13"
(92 x 50 x 28.7 mm)
Form Factor Slab Clamshell Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology 1xRTT - LTE (Cat 4) EVDO rA 1xRTT
Features 
Flashlight Yes - Yes - Yes
GPS / Location Yes Yes Yes n/a Yes
Ruggedized Yes - - - -
Accessibility
Adjustable Text Size - Yes - n/a -
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - Yes - - Yes
Connectivity
Bluetooth - - Yes Yes -
Mobile Hotspot - - Yes n/a -
NFC - - Yes - -
USB - - Yes
Micro-USB
Yes
Mini-USB
Yes
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
-
Contacts
Picture ID Yes - Yes n/a Yes
Ringer ID Yes - Yes n/a Yes
Voice Dialing Yes Yes Yes n/a Yes
Customization
Changeable Body Plates - - - - Yes
Custom Graphics Yes - - n/a Yes
Custom Ringtones Yes - Yes n/a Yes
Real-Music Ringers - - - n/a Yes
Data & Network
Data Tethering Yes - Yes n/a Yes
WAP / Web Browser Yes - Yes n/a Yes
Input
Predictive Text Entry Yes Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot - - - Yes -
Messaging
Email Client - - Yes n/a -
EMS / Picture Messaging Yes Yes - n/a -
Instant Messaging - - - n/a -
MMS - - Yes n/a -
Text Messaging Templates Yes - Yes n/a Yes
Music
Headphone Jack (3.5mm) - - Yes Yes -
Music Player - - Yes n/a -
Stereo Speakers - - Yes - -
Photo & Video
Miracast - - Yes - -
TV Output - - Yes - -
Productivity
Alarm Yes Yes Yes n/a Yes
Calculator Yes Yes Yes n/a Yes
Calendar Yes Yes Yes n/a Yes
To-Do List - - - n/a Yes
Voice Memo Yes - Yes n/a Yes
Software
BREW Yes * - - n/a -
Games Yes - Yes n/a Yes
Java (J2ME) - - - n/a Yes
Voice
Call Screening - - - - Yes
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 Amazon Fire HTC Droid Eris Sanyo MM-7400
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Kyocera KX12 Samsung Knack U310 Amazon Fire HTC Droid Eris Sanyo MM-7400

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