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Phone Asus ROG Phone II Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SGH-X640 LG Stylo 4
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Not yet released Released Released Released
Specifications 
Display Size 6.6" diag.
19.5 : 9
5" diag.
16 : 9
? 6.2" diag.
18 : 9
Display Resolution & Type 1080 x 2340 pixels
(~391 ppi)
AMOLED
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
Display Refresh 120 Hz 60 Hz ? 60 Hz
Battery 6,000 mAh 2,600 mAh 800 mAh 3,300 mAh
Processor 3 GHz Qualcomm Snapdragon 855 Plus 1.4 GHz Samsung Exynos 7570 ? 1.8 GHz Qualcomm Snapdragon 450
RAM 12 GB 2 GB ? 2 GB *
Storage 512 GB 16 GB ? raw hardware 32 GB *
Main Camera 48 megapixel 8 megapixel Yes 13 megapixel
Wide Camera 13 megapixel - - -
Tele Camera - - - -
Video Capture 4K UHD 1080p HD - 1080p HD
Front Camera 24 megapixel 5 megapixel - 5 megapixel
Weight 8.47 oz
(240g)
5.43 oz
(154g)
3 oz
(85g)
6.07 oz
(172g)
Dimensions 6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
Form Factor Slab Slab Clamshell Slab
Platform / OS Android Android (proprietary) Android
Network Bands

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: 2, 3, 4, 5, 7, 12, 14, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology LTE (Cat 20) LTE (Cat 4) GPRS LTE (Cat 6)
Features 
Fingerprint Reader Yes
in-display (optical)
- - Yes
stand-alone
Flashlight Yes Yes - Yes
Accessibility
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages n/a n/a Yes n/a
TTY/TDD (Digital) - Yes - Yes
Connectivity
Bluetooth Yes Yes - Yes
NFC Yes - - Yes *
USB Yes
USB Type C
Yes
Micro-USB
- Yes
USB Type C
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a n/a Yes n/a
Ringer ID n/a n/a Yes n/a
Customization
Custom Graphics n/a n/a Yes n/a
Custom Ringtones n/a n/a Yes n/a
Data & Network
Dual-SIM Yes - - -
WAP / Web Browser n/a n/a Yes n/a
Input
Predictive Text Entry n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes
Stylus - - - Yes
Touch Screen Yes
Capacitive
Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot - Yes - Yes
Messaging
EMS / Picture Messaging n/a n/a Yes n/a
MMS n/a n/a Yes n/a
Text Messaging Templates n/a n/a Yes n/a
Music
FM Radio Yes - - Yes
Headphone Jack (3.5mm) Yes Yes - Yes
Stereo Speakers Yes - - -
Photo & Video
DLNA - - - Yes
TV Output Yes - - -
Power
Fast Charging Yes - - -
Productivity
Alarm n/a n/a Yes n/a
Calculator n/a n/a Yes n/a
Calendar n/a n/a Yes n/a
To-Do List n/a n/a Yes n/a
Voice Memo n/a n/a Yes n/a
Software
Games n/a n/a Yes n/a
Java (J2ME) n/a n/a Yes n/a
Voice
HD Voice - - - Yes
Headset Jack (2.5 mm) n/a n/a Yes n/a
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Asus ROG Phone II Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SGH-X640 LG Stylo 4
  X > < X > < X > < X

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

 
Phone Asus ROG Phone II Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SGH-X640 LG Stylo 4

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