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Phone LG K4 / Optimus Zone 3 / Rebel Casio G'zOne Boulder ZTE F160 Asus ROG Phone II Amazon Fire
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size 4.5" diag.
16 : 9
2" diag.
4 : 3
2.4" diag.
4 : 3
6.6" diag.
19.5 : 9
4.7" diag.
16 : 9
Display Resolution & Type 480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~391 ppi)
AMOLED
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? 120 Hz ?
Battery 1,940 mAh 810 mAh 900 mAh 6,000 mAh 2,400 mAh
Processor 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ? ? 3 GHz Qualcomm Snapdragon 855 Plus 2.2 GHz Qualcomm Snapdragon 800
RAM 1.5 GB ? ? 12 GB 2 GB
Storage 16 GB * ? raw hardware ? raw hardware 512 GB 32 GB *
Main Camera 5 megapixel 1 megapixel 3 megapixel 48 megapixel 13 megapixel
Wide Camera - - - 13 megapixel -
Tele Camera - - - - -
Video Capture 720p HD ? QCIF (176 x 144) 4K UHD 1080p HD
Front Camera 2 megapixel - - 24 megapixel 2 megapixel
Weight 3.99 oz
(113g)
4.9 oz
(139g)
2.96 oz
(84g)
8.47 oz
(240g)
5.64 oz
(160g)
Dimensions 5.19" x 2.62" x 0.35"
(132 x 67 x 8.9 mm)
3.9" x 2" x 0.9"
(99 x 51 x 22.9 mm)
4.57" x 1.93" x 0.44"
(116 x 49 x 11.2 mm)
6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
Form Factor Slab Clamshell Slab Slab Slab
Platform / OS Android (proprietary) (proprietary) Android (proprietary)
Network Bands

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 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

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 3) EVDO rA HSDPA 3.6 LTE (Cat 20) LTE (Cat 4)
Features 
Fingerprint Reader - - - Yes
in-display (optical)
-
Flashlight Yes Yes - Yes Yes
GPS / Location n/a Yes Yes n/a Yes
Ruggedized - Yes - - -
Water-Resistant - Yes - - -
Accessibility
Adjustable Text Size n/a - - n/a -
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages n/a Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display - Yes - - -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot n/a - - n/a Yes
NFC - - - Yes Yes
USB Yes
Micro-USB
Yes Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
- - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a Yes - n/a Yes
Ringer ID n/a Yes Yes n/a Yes
Voice Dialing n/a Yes - n/a Yes
Customization
Changeable Body Plates - Yes - - -
Custom Graphics n/a Yes Yes n/a -
Custom Ringtones n/a Yes 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 -
WAP / Web Browser n/a Yes Yes n/a Yes
Input
Predictive Text Entry n/a Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - - Yes Yes
Memory
Memory Card Slot Yes Yes Yes - -
Messaging
Email Client n/a - - n/a Yes
EMS / Picture Messaging n/a Yes - n/a -
Instant Messaging n/a - Yes n/a -
MMS n/a Yes Yes n/a Yes
Text Messaging Templates n/a Yes Yes n/a Yes
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) Yes - Yes Yes Yes
Music Player n/a Yes Yes n/a Yes
Stereo Speakers - - - Yes Yes
Photo & Video
Miracast Yes - - - Yes
TV Output - - - Yes Yes
Power
Fast Charging - - - Yes -
Productivity
Alarm n/a Yes Yes n/a Yes
Calculator n/a Yes Yes n/a Yes
Calendar n/a Yes Yes n/a Yes
Voice Memo n/a Yes Yes n/a Yes
Software
BREW n/a Yes - n/a -
Games n/a Yes Yes n/a Yes
Java (J2ME) n/a - Yes n/a -
Voice
HD Voice Yes * - - - Yes
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  LG K4 / Optimus Zone 3 / Rebel Casio G'zOne Boulder ZTE F160 Asus ROG Phone II Amazon Fire
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone LG K4 / Optimus Zone 3 / Rebel Casio G'zOne Boulder ZTE F160 Asus ROG Phone II Amazon Fire

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