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Phone Asus ROG Phone II Ericsson R520 Samsung M400 BlackBerry Key2 Nokia Lumia 920
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
? 2.4" diag.
4 : 3
4.5" diag.
5 : 3
4.5" diag.
5 : 3
Display Resolution & Type 1080 x 2340 pixels
(~391 ppi)
AMOLED
? 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 1620 pixels
(~433 ppi)
LCD (TFT/TFD)
768 x 1280 pixels
(~332 ppi)
LCD (TFT/TFD)
Display Refresh 120 Hz ? ? 60 Hz ?
Battery 6,000 mAh ? 1,000 mAh 3,500 mAh 2,000 mAh
Processor 3 GHz Qualcomm Snapdragon 855 Plus ? 400 MHz Qualcomm QSC6155 2.2 GHz Qualcomm Snapdragon 660 1.5 GHz Qualcomm Snapdragon S4
RAM 12 GB ? 128 MB 6 GB 1 GB
Storage 512 GB ? raw hardware 256 MB 64 GB * 32 GB
Main Camera 48 megapixel - 1 megapixel 12 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 1 megapixel
Weight 8.47 oz
(240g)
4.23 oz
(120g)
3.7 oz
(105g)
5.93 oz
(168g)
6.53 oz
(185g)
Dimensions 6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 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)
5.96" x 2.82" x 0.33"
(151 x 72 x 8.4 mm)
5.12" x 2.79" x 0.42"
(130 x 71 x 10.7 mm)
Form Factor Slab Slab Clamshell Slab Slab
Platform / OS Android (proprietary) (proprietary) Android Windows
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

GSM: 900, 1800, 1900

CDMA: 800, 850, 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

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 20) GPRS 1xRTT LTE (Cat 11) LTE (Cat 3)
Features 
Fingerprint Reader Yes
in-display (optical)
- - Yes
stand-alone
-
Flashlight Yes - - Yes -
GPS / Location n/a - Yes n/a n/a
Accessibility
Adjustable Text Size n/a - Yes n/a n/a
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages n/a Yes Yes n/a n/a
TTY/TDD (Digital) - - Yes Yes Yes
Alerts
Extra Display - - Yes - -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
HSP, Sync, OPP, DUN
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - - -
Mobile Hotspot n/a - - n/a n/a
NFC Yes - - Yes Yes
USB Yes
USB Type C
- Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID n/a - Yes n/a n/a
Ringer ID n/a - Yes n/a n/a
Voice Dialing n/a Yes Yes n/a n/a
Customization
Custom Graphics n/a - Yes n/a n/a
Custom Ringtones n/a Yes Yes n/a n/a
Real-Music Ringers n/a - Yes n/a n/a
Data & Network
Data Tethering n/a Yes - n/a n/a
Dual-SIM Yes - - - -
WAP / Web Browser n/a Yes Yes n/a n/a
Input
Predictive Text Entry n/a Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes - - Yes Yes
Memory
Memory Card Slot - - - Yes -
Messaging
Email Client n/a - - n/a n/a
Instant Messaging n/a - - n/a n/a
MMS n/a - Yes n/a n/a
Text Messaging Templates n/a Yes Yes n/a n/a
Music
FM Radio Yes - - Yes -
Headphone Jack (3.5mm) Yes - Yes Yes Yes
Music Player n/a - - n/a n/a
Stereo Speakers Yes - - - -
Photo & Video
TV Output Yes - - Yes -
Power
Fast Charging Yes - - Yes -
Wireless Charging - - - - Yes
Productivity
Alarm n/a Yes Yes n/a n/a
Calculator n/a Yes Yes n/a n/a
Calendar n/a Yes Yes n/a n/a
To-Do List n/a - - n/a n/a
Voice Memo n/a Yes Yes n/a n/a
Software
Games n/a Yes Yes n/a n/a
Voice
HD Voice - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Asus ROG Phone II Ericsson R520 Samsung M400 BlackBerry Key2 Nokia Lumia 920
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Phone Asus ROG Phone II Ericsson R520 Samsung M400 BlackBerry Key2 Nokia Lumia 920

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