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Phone ZTE Blade Max 2s Samsung SGH-X640 Samsung Galaxy S6 (GSM) Pantech Duo C810 Kyocera KX12
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6" diag.
18 : 9
? 5.1" diag.
16 : 9
2.2" diag.
4 : 3
?
Display Resolution & Type 1080 x 2160 pixels
(~402 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
Display Refresh 60 Hz ? 60 Hz ? ?
Battery 4,000 mAh 800 mAh 2,550 mAh 1,320 mAh 1,800 mAh
Processor 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) ? 2.1 GHz Samsung Exynos 7420 ARM 920t PXA27x ?
RAM 2 GB ? 3 GB ? ?
Storage 32 GB ? raw hardware 32 GB * ? raw hardware ? raw hardware
Main Camera 13 megapixel Yes 16 megapixel 1 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD - 4K UHD QVGA (320 x 240) -
Front Camera 5 megapixel - 5 megapixel - -
Weight 6.35 oz
(180g)
3 oz
(85g)
4.87 oz
(138g)
3.88 oz
(110g)
4.62 oz
(131g)
Dimensions 6.26" x 2.96" x 0.32"
(159 x 75 x 8.1 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
4.33" x 1.97" x 1.02"
(110 x 50 x 25.9 mm)
Form Factor Slab Clamshell Slab Slide Slab
Platform / OS Android (proprietary) Android Windows Mobile Standard (proprietary)
Network Bands

4G LTE: 2, 3, 4, 5, 7, 12, 13, 25, 26, 41

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

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

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology LTE (Cat 6) GPRS LTE (Cat 6) HSDPA 1.8 1xRTT
Features 
Fingerprint Reader Yes
stand-alone
- Yes - -
Flashlight Yes - Yes - Yes
GPS / Location n/a - n/a n/a Yes
Ruggedized - - - - Yes
VR-ready - - Yes - -
Accessibility
Hearing Aid Compatible Yes - Yes - -
Multiple Languages n/a Yes n/a n/a Yes
TTY/TDD (Digital) Yes - Yes - Yes
Alerts
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - - Yes - -
MirrorLink - - Yes - -
NFC - - Yes - -
USB Yes
USB Type C
- Yes
Micro-USB
Yes -
Wi-Fi 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 n/a Yes
Ringer ID n/a Yes n/a n/a Yes
Voice Dialing n/a - n/a n/a Yes
Customization
Custom Graphics n/a Yes n/a n/a Yes
Custom Ringtones n/a Yes n/a n/a Yes
Real-Music Ringers n/a - n/a n/a -
Data & Network
Data Tethering n/a - n/a n/a Yes
WAP / Web Browser n/a Yes n/a n/a Yes
Input
Predictive Text Entry n/a Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes - Yes - -
Memory
Memory Card Slot Yes - - Yes -
Messaging
Email Client n/a - n/a n/a -
EMS / Picture Messaging n/a Yes n/a n/a Yes
Instant Messaging n/a - n/a n/a -
MMS n/a Yes n/a n/a -
Text Messaging Templates n/a Yes n/a n/a Yes
Music
Headphone Jack (3.5mm) Yes - Yes - -
Music Player n/a - n/a n/a -
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
TV Output - - Yes - -
Power
Fast Charging Yes - Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm n/a Yes n/a n/a Yes
Calculator n/a Yes n/a n/a Yes
Calendar n/a Yes n/a n/a Yes
To-Do List n/a Yes n/a n/a -
Voice Memo n/a Yes n/a n/a Yes
Software
BREW n/a - n/a n/a Yes *
Games n/a Yes n/a n/a Yes
Java (J2ME) n/a Yes n/a n/a -
Voice
HD Voice Yes - Yes - -
Headset Jack (2.5 mm) n/a Yes n/a n/a Yes
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  ZTE Blade Max 2s Samsung SGH-X640 Samsung Galaxy S6 (GSM) Pantech Duo C810 Kyocera KX12
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Blade Max 2s Samsung SGH-X640 Samsung Galaxy S6 (GSM) Pantech Duo C810 Kyocera KX12

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