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Phone Amazon Fire Samsung M520 Samsung Focus Flash LG PM-225 Samsung SGH-X640
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
2.1" diag.
4 : 3
3.7" diag.
5 : 3
? ?
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
AMOLED
128 x 160 pixels
LCD (STN)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 2,400 mAh ? 1,500 mAh 1,000 mAh 800 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 ? 1.4 GHz Qualcomm Snapdragon ? ?
RAM 2 GB ? ? ? ?
Storage 32 GB * ? raw hardware 8 GB ? raw hardware ? raw hardware
Main Camera 13 megapixel 1 megapixel 5 megapixel Yes Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD ? 720p HD - -
Front Camera 2 megapixel - Yes - -
Weight 5.64 oz
(160g)
2.75 oz
(78g)
4.1 oz
(116g)
3.35 oz
(95g)
3 oz
(85g)
Dimensions 5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
4.57" x 2.31" x 0.43"
(116 x 59 x 10.9 mm)
3.53" x 1.76" x 0.93"
(90 x 45 x 23.6 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
Form Factor Slab Slide Slab Clamshell Clamshell
Platform / OS (proprietary) (proprietary) Windows (proprietary) (proprietary)
Network Bands

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

Data Technology LTE (Cat 4) EVDO r0 ? 1xRTT GPRS
Features 
Flashlight Yes - - - -
GPS / Location Yes Yes n/a Yes -
Accessibility
Hearing Aid Compatible Yes Yes - - -
Multiple Languages Yes Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes -
Alerts
Extra Display - - - Yes -
Connectivity
Bluetooth Yes Yes Yes - -
Mobile Hotspot Yes - n/a - -
NFC Yes - - - -
USB Yes
Micro-USB
Yes Yes Yes -
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes - -
Contacts
Picture ID Yes Yes n/a Yes Yes
Ringer ID Yes Yes n/a Yes Yes
Voice Dialing Yes Yes n/a Yes -
Customization
Custom Graphics - Yes n/a Yes Yes
Custom Ringtones Yes Yes n/a Yes Yes
Real-Music Ringers - - n/a - -
Data & Network
Data Tethering Yes Yes n/a - -
WAP / Web Browser Yes Yes n/a Yes Yes
Input
Predictive Text Entry Yes Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - Yes - -
Memory
Memory Card Slot - Yes - - -
Messaging
Email Client Yes - n/a - -
EMS / Picture Messaging - - n/a - Yes
Instant Messaging - - n/a - -
MMS Yes - n/a - Yes
Text Messaging Templates Yes Yes n/a - Yes
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) Yes - Yes - -
Music Player Yes Yes n/a - -
Stereo Speakers Yes - - - -
Photo & Video
Miracast Yes - - - -
TV Output Yes - - - -
Productivity
Alarm Yes Yes n/a Yes Yes
Calculator Yes Yes n/a Yes Yes
Calendar Yes Yes n/a Yes Yes
To-Do List - Yes n/a - Yes
Voice Memo Yes Yes n/a Yes Yes
Software
Games Yes Yes n/a Yes Yes
Java (J2ME) - Yes n/a Yes Yes
Voice
HD Voice Yes - - - -
Headset Jack (2.5 mm) - - n/a Yes Yes
Speaker Phone Yes Yes Yes Yes Yes
  Amazon Fire Samsung M520 Samsung Focus Flash LG PM-225 Samsung SGH-X640
  X > < X > < X > < X > < X

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

 
Phone Amazon Fire Samsung M520 Samsung Focus Flash LG PM-225 Samsung SGH-X640

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