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Phone Amazon Fire Samsung SGH-X640 LG Harmony 4 / Xpression Plus 3 / Premier Pro Plus Motorola W175 Sonim XP Strike
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
? 6.1" diag.
19.5 : 9
? 2" diag.
4 : 3
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? ?
Battery 2,400 mAh 800 mAh 3,500 mAh ? 1,950 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 ? 2 GHz MediaTek Helio P22 (MT6762) ? ?
RAM 2 GB ? 3 GB * ? 256 MB
Storage 32 GB * ? raw hardware 32 GB ? raw hardware 512 MB
Main Camera 13 megapixel Yes 13 megapixel - 2 megapixel
Wide Camera - - 5 megapixel - -
Tele Camera - - - - -
Video Capture 1080p HD - 1080p HD - ?
Front Camera 2 megapixel - 8 megapixel - -
Weight 5.64 oz
(160g)
3 oz
(85g)
6.1 oz
(173g)
3 oz
(85g)
6.52 oz
(185g)
Dimensions 5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.15" x 2.92" x 0.34"
(156 x 74 x 8.6 mm)
4.49" x 1.69" x 0.55"
(114 x 43 x 14 mm)
4.95" x 2.3" x 0.98"
(126 x 58 x 24.9 mm)
Form Factor Slab Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android (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

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 13, 14, 25, 26, 29, 30, 41, 66, 71

WCDMA: 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

CDMA: 800, 850, 1900

Data Technology LTE (Cat 4) GPRS LTE (Cat 6) - EVDO rA
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight Yes - Yes - Yes
GPS / Location Yes - n/a - Yes
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
Accessibility
Hearing Aid Compatible Yes - Yes - Yes
Multiple Languages Yes Yes n/a Yes Yes
TTY/TDD (Digital) Yes - Yes Yes -
Alerts
Ringer Profiles - - - - Yes
Connectivity
Bluetooth Yes - Yes - Yes
Mobile Hotspot Yes - n/a - -
NFC Yes - - - -
USB Yes
Micro-USB
- Yes
USB Type C
Yes Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 a,b,g,n)
- -
Contacts
Picture ID Yes Yes n/a - Yes
Ringer ID Yes Yes n/a - Yes
Voice Dialing Yes - n/a - -
Customization
Custom Graphics - Yes n/a - Yes
Custom Ringtones Yes Yes n/a - Yes
Real-Music Ringers - - n/a - Yes
Data & Network
Data Tethering Yes - n/a - -
WAP / Web Browser Yes Yes n/a - Yes
Input
Predictive Text Entry Yes Yes n/a Yes Yes
Side Keys Yes Yes Yes - Yes
Touch Screen Yes - Yes - -
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client Yes - n/a - -
EMS / Picture Messaging - Yes n/a - -
MMS Yes Yes n/a - Yes
Text Messaging Templates Yes Yes n/a Yes -
Music
FM Radio - - Yes - Yes
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player Yes - n/a - Yes
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
Software
Games Yes Yes n/a Yes Yes
Java (J2ME) - Yes n/a - Yes
Voice
HD Voice Yes - Yes - -
Headset Jack (2.5 mm) - Yes n/a - -
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  Amazon Fire Samsung SGH-X640 LG Harmony 4 / Xpression Plus 3 / Premier Pro Plus Motorola W175 Sonim XP Strike
  X > < X > < X > < X > < X

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

 
Phone Amazon Fire Samsung SGH-X640 LG Harmony 4 / Xpression Plus 3 / Premier Pro Plus Motorola W175 Sonim XP Strike

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