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Phone Asus ROG Phone II BlackBerry Key2 Ericsson R520 Samsung M400 AT&T Vista
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size 6.6" diag.
19.5 : 9
4.5" diag.
5 : 3
? 2.4" diag.
4 : 3
5.5" diag.
18 : 9
Display Resolution & Type 1080 x 2340 pixels
(~391 ppi)
AMOLED
1080 x 1620 pixels
(~433 ppi)
LCD (TFT/TFD)
? 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
Display Refresh 120 Hz 60 Hz ? ? 60 Hz
Battery 6,000 mAh 3,500 mAh ? 1,000 mAh 2,450 mAh
Processor 3 GHz Qualcomm Snapdragon 855 Plus 2.2 GHz Qualcomm Snapdragon 660 ? 400 MHz Qualcomm QSC6155 2 GHz MediaTek Helio A22 (MT6761V)
RAM 12 GB 6 GB ? 128 MB 3 GB
Storage 512 GB 64 GB * ? raw hardware 256 MB 32 GB
Main Camera 48 megapixel 12 megapixel - 1 megapixel 8 megapixel
Wide Camera 13 megapixel - - - -
Tele Camera - 12 megapixel - - -
Video Capture 4K UHD 4K UHD - - 1080p HD
Front Camera 24 megapixel 8 megapixel - - 5 megapixel
Weight 8.47 oz
(240g)
5.93 oz
(168g)
4.23 oz
(120g)
3.7 oz
(105g)
5.51 oz
(156g)
Dimensions 6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
5.96" x 2.82" x 0.33"
(151 x 72 x 8.4 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS Android Android (proprietary) (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: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 28, 29, 30, 38, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 800, 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

Data Technology LTE (Cat 20) LTE (Cat 11) GPRS 1xRTT LTE (Cat 4)
Features 
Fingerprint Reader Yes
in-display (optical)
Yes
stand-alone
- - -
Flashlight Yes Yes - - Yes
GPS / Location n/a n/a - Yes n/a
Accessibility
Adjustable Text Size n/a n/a - Yes n/a
Hearing Aid Compatible Yes Yes - Yes Yes
Multiple Languages n/a n/a Yes Yes n/a
TTY/TDD (Digital) - Yes - Yes -
Alerts
Extra Display - - - Yes -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - - Yes - -
NFC Yes Yes - - -
USB Yes
USB Type C
Yes
USB Type C
- Yes
Micro-USB
Yes
USB Type C
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- - Yes
Contacts
Picture ID n/a n/a - Yes n/a
Ringer ID n/a n/a - Yes n/a
Voice Dialing n/a n/a Yes Yes n/a
Customization
Custom Graphics n/a n/a - Yes n/a
Custom Ringtones n/a n/a Yes Yes n/a
Real-Music Ringers n/a n/a - Yes n/a
Data & Network
Data Tethering n/a n/a Yes - n/a
Dual-SIM Yes - - - -
WAP / Web Browser n/a n/a Yes Yes n/a
Input
Predictive Text Entry n/a n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen Yes Yes - - Yes
Memory
Memory Card Slot - Yes - - Yes
Messaging
MMS n/a n/a - Yes n/a
Text Messaging Templates n/a n/a Yes Yes n/a
Music
FM Radio Yes Yes - - -
Headphone Jack (3.5mm) Yes Yes - Yes Yes
Stereo Speakers Yes - - - -
Photo & Video
TV Output Yes Yes - - -
Power
Fast Charging Yes Yes - - -
Productivity
Alarm n/a n/a Yes Yes n/a
Calculator n/a n/a Yes Yes n/a
Calendar n/a n/a Yes Yes n/a
Voice Memo n/a n/a Yes Yes n/a
Software
Games n/a n/a Yes Yes n/a
Voice
HD Voice - Yes - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  Asus ROG Phone II BlackBerry Key2 Ericsson R520 Samsung M400 AT&T Vista
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Asus ROG Phone II BlackBerry Key2 Ericsson R520 Samsung M400 AT&T Vista

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