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Phone Samsung SGH-X640 Asus ROG Phone II Samsung SCH-A990 Motorola Moto Z2 Force Motorola T280i
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Not yet released Released Released Released
Specifications 
Display Size ? 6.6" diag.
19.5 : 9
? 5.5" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~391 ppi)
AMOLED
240 x 320 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~534 ppi)
AMOLED
?
Display Refresh ? 120 Hz ? 60 Hz ?
Battery 800 mAh 6,000 mAh 1,000 mAh 2,730 mAh ?
Processor ? 3 GHz Qualcomm Snapdragon 855 Plus ? 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) ?
RAM ? 12 GB ? 4 GB ?
Storage ? raw hardware 512 GB ? raw hardware 64 GB ? raw hardware
Main Camera Yes 48 megapixel 3 megapixel 12 megapixel -
Wide Camera - 13 megapixel - - -
Tele Camera - - - - -
Video Capture - 4K UHD ? 4K UHD -
Front Camera - 24 megapixel - 5 megapixel -
Weight 3 oz
(85g)
8.47 oz
(240g)
4.4 oz
(125g)
5.04 oz
(143g)
4 oz
(113g)
Dimensions 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)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
6.13" x 2.99" x 0.24"
(156 x 76 x 6.1 mm)
4.9" x 1.9" x 0.9"
(124 x 48 x 22.9 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) Android (proprietary) Android (proprietary)
Network Bands

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

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1800, 1900

Data Technology GPRS LTE (Cat 20) EVDO r0 LTE (Cat 16) GPRS
Features 
Barometer - - - Yes -
Fingerprint Reader - Yes
in-display (optical)
- Yes
stand-alone
-
Flashlight - Yes Yes Yes -
GPS / Location - n/a Yes n/a -
VR-ready - - - Yes -
Water-Resistant - - - Yes -
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T4 (very tele-coil compatible)
-
Multiple Languages Yes n/a Yes n/a -
TTY/TDD (Digital) - - Yes Yes -
Alerts
Extra Display - - Yes - -
Connectivity
Bluetooth - Yes Yes Yes Yes
Infrared (IR) - - - - Yes
NFC - Yes - Yes -
USB - Yes
USB Type C
Yes Yes
USB Type C
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes n/a Yes n/a -
Ringer ID Yes n/a Yes n/a Yes
Voice Dialing - n/a Yes n/a Yes
Customization
Custom Graphics Yes n/a Yes n/a Yes
Custom Ringtones Yes n/a Yes n/a Yes
Real-Music Ringers - n/a Yes n/a -
Data & Network
Data Tethering - n/a Yes n/a Yes
Dual-SIM - Yes - Yes * -
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot - - Yes Yes -
Messaging
EMS / Picture Messaging Yes n/a Yes n/a Yes
MMS Yes n/a Yes n/a -
Text Messaging Templates Yes n/a Yes n/a -
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes - - -
Music Player - n/a Yes n/a -
Stereo Speakers - Yes Yes - -
Photo & Video
TV Output - Yes Yes - -
Power
Fast Charging - Yes - Yes -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List Yes n/a - n/a -
Voice Memo Yes n/a Yes n/a Yes
Software
BREW - n/a Yes n/a -
Games Yes n/a Yes n/a Yes
Java (J2ME) Yes n/a - n/a Yes
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) Yes n/a - n/a Yes
Speaker Phone Yes Yes Yes Yes -
  * Some versions only
  Samsung SGH-X640 Asus ROG Phone II Samsung SCH-A990 Motorola Moto Z2 Force Motorola T280i
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Asus ROG Phone II Samsung SCH-A990 Motorola Moto Z2 Force Motorola T280i

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