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Phone Samsung SGH-X640 Huawei Nexus 6P Google Pixel 3a XL Samsung Galaxy S6 (GSM) Kyocera 3225
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.7" diag.
16 : 9
6" diag.
18 : 9
5.1" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~515 ppi)
AMOLED
1080 x 2160 pixels
(~402 ppi)
AMOLED
1440 x 2560 pixels
(~576 ppi)
AMOLED
?
LCD (Grayscale)
Display Refresh ? 60 Hz 60 Hz 60 Hz ?
Battery 800 mAh 3,450 mAh 3,700 mAh 2,550 mAh ?
Processor ? 2 GHz Qualcomm Snapdragon 810 2 GHz Qualcomm Snapdragon 670 2.1 GHz Samsung Exynos 7420 ?
RAM ? 3 GB 4 GB 3 GB ?
Storage ? raw hardware 32 GB * 64 GB 32 GB * ? raw hardware
Main Camera Yes 12 megapixel 12 megapixel 16 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 4K UHD 4K UHD 4K UHD -
Front Camera - 8 megapixel 8 megapixel 5 megapixel -
Weight 3 oz
(85g)
6.28 oz
(178g)
5.89 oz
(167g)
4.87 oz
(138g)
4.23 oz
(120g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.27" x 3.06" x 0.29"
(159 x 78 x 7.3 mm)
6.3" x 3" x 0.3"
(160 x 76 x 7.6 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
3.4" x 1.97" x 1.02"
(86 x 50 x 25.9 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 13, 17, 25, 26, 29, 30, 41

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 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

*

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS LTE (Cat 6) LTE (Cat 11) LTE (Cat 6) 1xRTT
Features 
Barometer - - Yes - -
Fingerprint Reader - Yes Yes
stand-alone
Yes -
Flashlight - Yes Yes Yes -
GPS / Location - n/a n/a n/a Yes
VR-ready - - - Yes -
Accessibility
Adjustable Text Size - n/a n/a n/a -
Hearing Aid Compatible - Yes Yes Yes -
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Connectivity
Bluetooth - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - - - Yes -
MirrorLink - - - Yes -
Mobile Hotspot - n/a n/a n/a -
NFC - Yes 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 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes n/a n/a n/a -
Ringer ID Yes n/a n/a n/a -
Voice Dialing - n/a n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a n/a Yes
Custom Ringtones Yes n/a 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 Yes n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes -
Touch Screen - Yes Yes Yes -
Messaging
Email Client - n/a n/a n/a -
EMS / Picture Messaging Yes n/a n/a n/a Yes
Instant Messaging - n/a n/a n/a -
MMS Yes n/a n/a n/a -
Text Messaging Templates Yes n/a n/a n/a -
Music
Headphone Jack (3.5mm) - Yes Yes Yes -
Music Player - n/a n/a n/a -
Stereo Speakers - Yes Yes - -
Photo & Video
DLNA - - - Yes -
Miracast - - - Yes -
TV Output - - - Yes -
Power
Fast Charging - Yes Yes Yes -
Wireless Charging - - - Yes -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
To-Do List Yes n/a n/a n/a -
Voice Memo Yes n/a n/a n/a -
Software
BREW - n/a n/a n/a Yes
Games Yes n/a n/a n/a Yes
Java (J2ME) Yes n/a n/a n/a -
Voice
Call Screening - - Yes - -
HD Voice - Yes Yes Yes -
Headset Jack (2.5 mm) Yes n/a n/a n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Huawei Nexus 6P Google Pixel 3a XL Samsung Galaxy S6 (GSM) Kyocera 3225
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Huawei Nexus 6P Google Pixel 3a XL Samsung Galaxy S6 (GSM) Kyocera 3225

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