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Phone Amazon Fire Samsung SGH-X640 Asus ROG Phone II Motorola Flipside Samsung Galaxy S6 (GSM)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Not yet released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
? 6.6" diag.
19.5 : 9
3.1" diag.
5 : 3
5.1" diag.
16 : 9
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~391 ppi)
AMOLED
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
Display Refresh ? ? 120 Hz 60 Hz 60 Hz
Battery 2,400 mAh 800 mAh 6,000 mAh 1,150 mAh 2,550 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 ? 3 GHz Qualcomm Snapdragon 855 Plus 720 MHz TI OMAP 3410 2.1 GHz Samsung Exynos 7420
RAM 2 GB ? 12 GB ? 3 GB
Storage 32 GB * ? raw hardware 512 GB ? raw hardware 32 GB *
Main Camera 13 megapixel Yes 48 megapixel 3 megapixel 16 megapixel
Wide Camera - - 13 megapixel - -
Tele Camera - - - - -
Video Capture 1080p HD - 4K UHD CIF (352 x 288) 4K UHD
Front Camera 2 megapixel - 24 megapixel - 5 megapixel
Weight 5.64 oz
(160g)
3 oz
(85g)
8.47 oz
(240g)
5.11 oz
(145g)
4.87 oz
(138g)
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)
6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
4.31" x 2.26" x 0.59"
(109 x 57 x 15 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
Form Factor Slab Clamshell Slab Slide Slab
Platform / OS (proprietary) (proprietary) Android Android Android
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: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 66

WCDMA: 1, 2, 3, 4, 5, 8, 19

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

Data Technology LTE (Cat 4) GPRS LTE (Cat 20) HSPA 7.2 LTE (Cat 6)
Features 
Fingerprint Reader - - Yes
in-display (optical)
- Yes
Flashlight Yes - Yes - Yes
GPS / Location Yes - n/a n/a n/a
VR-ready - - - - Yes
Accessibility
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes - - Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
-
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - - - Yes
MirrorLink - - - - Yes
Mobile Hotspot Yes - n/a n/a n/a
NFC Yes - Yes - Yes
USB Yes
Micro-USB
- Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing Yes - n/a n/a n/a
Customization
Custom Graphics - Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers - - n/a n/a n/a
Data & Network
Data Tethering Yes - n/a n/a n/a
Dual-SIM - - Yes - -
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes - Yes Yes Yes
Memory
Memory Card Slot - - - Yes -
Messaging
Email Client Yes - n/a n/a n/a
EMS / Picture Messaging - Yes n/a n/a n/a
Instant Messaging - - n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio - - Yes Yes -
Headphone Jack (3.5mm) Yes - Yes Yes Yes
Music Player Yes - n/a n/a n/a
Stereo Speakers Yes - Yes - -
Photo & Video
DLNA - - - - Yes
Miracast Yes - - - Yes
TV Output Yes - Yes - Yes
Power
Fast Charging - - Yes - Yes
Wireless Charging - - - - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List - Yes n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
Games Yes Yes n/a n/a n/a
Java (J2ME) - Yes n/a n/a n/a
Voice
HD Voice Yes - - - Yes
Headset Jack (2.5 mm) - Yes n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  Amazon Fire Samsung SGH-X640 Asus ROG Phone II Motorola Flipside Samsung Galaxy S6 (GSM)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Amazon Fire Samsung SGH-X640 Asus ROG Phone II Motorola Flipside Samsung Galaxy S6 (GSM)

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