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Phone Asus ZenFone 4 Samsung SGH-X640 Nokia G100 Kyocera Candid KX16 Samsung Galaxy S6 (GSM)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 5.5" diag.
16 : 9
? 6.5" diag.
20 : 9
? 5.1" diag.
16 : 9
Display Resolution & Type 1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
720 x 1600 pixels
(~269 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
1440 x 2560 pixels
(~576 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz ? 60 Hz
Battery 3,300 mAh 800 mAh 5,000 mAh 900 mAh 2,550 mAh
Processor 2.2 GHz Qualcomm Snapdragon 630 ? 2 GHz Snapdragon 662 ? 2.1 GHz Samsung Exynos 7420
RAM 4 GB ? 3 GB ? 3 GB
Storage 64 GB ? raw hardware 32 GB ? raw hardware 32 GB *
Main Camera 12 megapixel Yes 13 megapixel Yes 16 megapixel
Wide Camera Yes - 8 megapixel - -
Tele Camera - - - - -
Video Capture 4K UHD - 1080p HD - 4K UHD
Front Camera 8 megapixel - 8 megapixel - 5 megapixel
Weight 5.47 oz
(155g)
3 oz
(85g)
6.87 oz
(195g)
3.9 oz
(111g)
4.87 oz
(138g)
Dimensions 6.12" x 2.96" x 0.3"
(155 x 75 x 7.7 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.56" x 3.02" x 0.35"
(167 x 77 x 8.8 mm)
3.54" x 1.89" x 0.98"
(90 x 48 x 24.9 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
Form Factor Slab Clamshell Slab Clamshell Slab
Platform / OS Android (proprietary) Android (proprietary) Android
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 7, 12, 13, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

Data Technology LTE (Cat 12) GPRS LTE (Cat 13) 1xRTT LTE (Cat 6)
Features 
Barometer - - Yes - -
Fingerprint Reader Yes
stand-alone
- Yes
stand-alone
- Yes
Flashlight Yes - Yes Yes Yes
GPS / Location n/a - n/a Yes n/a
VR-ready - - - - Yes
Water-Resistant - - Yes
IPX2 (drip)
- -
Accessibility
Hearing Aid Compatible Yes - Yes - Yes
Multiple Languages n/a Yes n/a Yes n/a
TTY/TDD (Digital) - - - Yes Yes
Alerts
Extra Display - - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
- Yes
Classic Audio
Infrared (IR) - - - - Yes
MirrorLink - - - - Yes
NFC Yes - - - Yes
USB Yes
USB Type C
- Yes
USB Type C
- Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
5 (802.11 ac,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a Yes n/a Yes n/a
Ringer ID n/a Yes n/a Yes n/a
Voice Dialing n/a - n/a Yes n/a
Customization
Custom Graphics n/a Yes n/a Yes n/a
Custom Ringtones n/a Yes n/a Yes n/a
Data & Network
Data Tethering n/a - n/a Yes n/a
Dual-SIM Yes - - - -
WAP / Web Browser n/a Yes n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - Yes - Yes
Memory
Memory Card Slot Yes - Yes - -
Messaging
EMS / Picture Messaging n/a Yes n/a Yes n/a
MMS n/a Yes n/a Yes n/a
Text Messaging Templates n/a Yes n/a Yes n/a
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) Yes - Yes - Yes
Photo & Video
DLNA - - - - Yes
Miracast Yes - - - Yes
TV Output - - - - Yes
Power
Fast Charging Yes - Yes - Yes
Wireless Charging - - - - Yes
Productivity
Alarm n/a Yes n/a Yes n/a
Calculator n/a Yes n/a Yes n/a
Calendar n/a Yes n/a Yes n/a
To-Do List n/a Yes n/a - n/a
Voice Memo n/a Yes n/a Yes n/a
Software
BREW n/a - n/a Yes n/a
Games n/a Yes n/a Yes n/a
Java (J2ME) n/a Yes n/a - n/a
Voice
HD Voice - - Yes - Yes
Headset Jack (2.5 mm) n/a Yes n/a Yes n/a
Speaker Phone Yes Yes Yes Yes Yes
  Asus ZenFone 4 Samsung SGH-X640 Nokia G100 Kyocera Candid KX16 Samsung Galaxy S6 (GSM)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Asus ZenFone 4 Samsung SGH-X640 Nokia G100 Kyocera Candid KX16 Samsung Galaxy S6 (GSM)

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