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Phone Amazon Fire Samsung SGH-X640 Asus ROG Phone II Samsung Galaxy S6 (GSM) Motorola Flipside
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
5.1" diag.
16 : 9
3.1" diag.
5 : 3
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
1440 x 2560 pixels
(~576 ppi)
AMOLED
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 120 Hz 60 Hz 60 Hz
Battery 2,400 mAh 800 mAh 6,000 mAh 2,550 mAh 1,150 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 ? 3 GHz Qualcomm Snapdragon 855 Plus 2.1 GHz Samsung Exynos 7420 720 MHz TI OMAP 3410
RAM 2 GB ? 12 GB 3 GB ?
Storage 32 GB * ? raw hardware 512 GB 32 GB * ? raw hardware
Main Camera 13 megapixel Yes 48 megapixel 16 megapixel 3 megapixel
Wide Camera - - 13 megapixel - -
Tele Camera - - - - -
Video Capture 1080p HD - 4K UHD 4K UHD CIF (352 x 288)
Front Camera 2 megapixel - 24 megapixel 5 megapixel -
Weight 5.64 oz
(160g)
3 oz
(85g)
8.47 oz
(240g)
4.87 oz
(138g)
5.11 oz
(145g)
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)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.31" x 2.26" x 0.59"
(109 x 57 x 15 mm)
Form Factor Slab Clamshell Slab Slab Slide
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

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

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) GPRS LTE (Cat 20) LTE (Cat 6) HSPA 7.2
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
5 (802.11 a,ac,b,g,n)
Yes
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 Samsung Galaxy S6 (GSM) Motorola Flipside
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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 Samsung Galaxy S6 (GSM) Motorola Flipside

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