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

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

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, 17, 20, 29, 30

WCDMA: 1, 2, 5

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

Data Technology GPRS 1xRTT LTE (Cat 6) LTE (Cat 6) LTE (Cat 11)
Features 
Barometer - - - - Yes
Fingerprint Reader - - Yes Yes Yes
stand-alone
Flashlight - - Yes Yes Yes
GPS / Location - Yes n/a n/a n/a
VR-ready - - - Yes -
Accessibility
Adjustable Text Size - - n/a n/a n/a
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
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
Micro-USB
Yes
USB Type C
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 - Yes n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers - - n/a n/a n/a
Data & Network
Data Tethering - Yes n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes - Yes Yes Yes
Touch Screen - - Yes Yes Yes
Messaging
Email Client - - n/a n/a n/a
EMS / Picture Messaging Yes Yes n/a n/a n/a
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 Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List Yes - n/a n/a n/a
Voice Memo Yes - n/a n/a n/a
Software
BREW - Yes n/a n/a n/a
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes - n/a n/a n/a
Voice
Call Screening - - - - Yes
HD Voice - - Yes Yes Yes
Headset Jack (2.5 mm) Yes Yes n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Kyocera 3225 Huawei Nexus 6P Samsung Galaxy S6 (GSM) Google Pixel 3a XL
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

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

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