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Phone Asus ROG Phone II Samsung Rugby A837 Samsung Galaxy J2 / J2 Pure / J2 Dash Siemens CX75 Motorola KRZR K1m
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Not yet released Released
Specifications 
Display Size 6.6" diag.
19.5 : 9
2" diag.
4 : 3
5" diag.
16 : 9
? ?
Display Resolution & Type 1080 x 2340 pixels
(~391 ppi)
AMOLED
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
132 x 176 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh 120 Hz ? 60 Hz ? ?
Battery 6,000 mAh 1,000 mAh 2,600 mAh 750 mAh 880 mAh
Processor 3 GHz Qualcomm Snapdragon 855 Plus ? 1.4 GHz Samsung Exynos 7570 ? ?
RAM 12 GB ? 2 GB ? ?
Storage 512 GB ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera 48 megapixel 1 megapixel 8 megapixel 1 megapixel 1 megapixel
Wide Camera 13 megapixel - - - -
Tele Camera - - - - -
Video Capture 4K UHD QCIF (176 x 144) 1080p HD ? ?
Front Camera 24 megapixel - 5 megapixel - -
Weight 8.47 oz
(240g)
4.66 oz
(132g)
5.43 oz
(154g)
3.46 oz
(98g)
3.63 oz
(103g)
Dimensions 6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
4.06" x 1.73" x 0.67"
(103 x 44 x 17 mm)
Form Factor Slab Clamshell Slab Slab Clamshell
Platform / OS Android (proprietary) Android (proprietary) (proprietary)
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

WCDMA: 2, 5

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

CDMA: 850, 1900

Data Technology LTE (Cat 20) HSDPA 3.6 LTE (Cat 4) GPRS EVDO r0
Features 
Fingerprint Reader Yes
in-display (optical)
- - - -
Flashlight Yes - Yes - -
GPS / Location n/a Yes n/a - Yes
Ruggedized - Yes - - -
Accessibility
Hearing Aid Compatible Yes Yes Yes - Yes
Multiple Languages n/a Yes n/a Yes Yes
TTY/TDD (Digital) - Yes Yes - Yes
Alerts
Extra Display - Yes - - Yes
Ringer Profiles - - - Yes Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - - - Yes -
NFC Yes - - - -
USB Yes
USB Type C
Yes Yes
Micro-USB
Yes Yes
Mini-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID n/a Yes n/a Yes Yes
Ringer ID n/a Yes n/a Yes Yes
Voice Dialing n/a - n/a - Yes
Customization
Custom Graphics n/a Yes n/a Yes Yes
Custom Ringtones n/a Yes n/a Yes Yes
Real-Music Ringers n/a Yes n/a - -
Data & Network
Data Tethering n/a Yes n/a Yes Yes
Dual-SIM Yes - - - -
WAP / Web Browser n/a Yes n/a Yes Yes
Input
Predictive Text Entry n/a Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - Yes - -
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client n/a Yes n/a Yes -
EMS / Picture Messaging n/a - n/a Yes Yes
Instant Messaging n/a Yes n/a - Yes *
MMS n/a Yes n/a Yes Yes
Text Messaging Templates n/a Yes n/a - Yes
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) Yes - Yes - -
Music Player n/a Yes n/a Yes Yes
Stereo Speakers Yes - - - -
Photo & Video
TV Output Yes - - - -
Power
Fast Charging Yes - - - -
Productivity
Alarm n/a Yes n/a Yes Yes
Calculator n/a Yes n/a Yes Yes
Calendar n/a Yes n/a Yes Yes
To-Do List n/a - n/a Yes -
Voice Memo n/a Yes n/a Yes Yes
Software
BREW n/a - n/a - Yes *
Games n/a Yes n/a Yes Yes
Java (J2ME) n/a Yes n/a Yes Yes *
Voice
Push-To-Talk - Yes - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Asus ROG Phone II Samsung Rugby A837 Samsung Galaxy J2 / J2 Pure / J2 Dash Siemens CX75 Motorola KRZR K1m
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Asus ROG Phone II Samsung Rugby A837 Samsung Galaxy J2 / J2 Pure / J2 Dash Siemens CX75 Motorola KRZR K1m

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