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Phone Samsung SGH-X640 Sony Xperia XZ1 Samsung Rugby A837 Sony Ericsson T68i Motorola Moto z4
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.2" diag.
16 : 9
2" diag.
4 : 3
? 6.4" diag.
19.5 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
101 x 80 pixels
LCD (STN)
1080 x 2340 pixels
(~403 ppi)
AMOLED
Display Refresh ? 60 Hz ? ? 60 Hz
Battery 800 mAh 2,700 mAh 1,000 mAh 700 mAh 3,600 mAh
Processor ? 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) ? ? 2 GHz Qualcomm Snapdragon 675
RAM ? 4 GB ? ? 4 GB
Storage ? raw hardware 64 GB ? raw hardware ? raw hardware 128 GB
Main Camera Yes 19 megapixel 1 megapixel - 48 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 4K UHD QCIF (176 x 144) - 4K UHD
Front Camera - 13 megapixel - - 25 megapixel
Weight 3 oz
(85g)
5.5 oz
(156g)
4.66 oz
(132g)
2.96 oz
(84g)
6 oz
(170g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.82" x 2.89" x 0.29"
(148 x 73 x 7.4 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
3.94" x 1.89" x 0.79"
(100 x 48 x 20.1 mm)
6.22" x 2.96" x 0.29"
(158 x 75 x 7.4 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) Android
Network Bands

GSM: 900, 1800, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

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

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology GPRS LTE (Cat 16) HSDPA 3.6 GPRS LTE (Cat 12)
Features 
Barometer - Yes - - -
Fingerprint Reader - Yes *
stand-alone
- - Yes
Flashlight - Yes - - Yes
GPS / Location - n/a Yes - n/a
Ruggedized - - Yes - -
Water-Resistant - Yes
IPX8 (SCUBA)
- - Yes
Accessibility
Hearing Aid Compatible - Yes Yes - Yes
Multiple Languages Yes n/a Yes Yes n/a
TTY/TDD (Digital) - Yes Yes - Yes
Alerts
Extra Display - - Yes - -
Ringer Profiles - - - Yes -
Connectivity
Bluetooth - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - - Yes -
NFC - Yes - - Yes
USB - Yes
USB Type C
Yes - Yes
USB Type C
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a Yes Yes n/a
Ringer ID Yes n/a Yes Yes n/a
Voice Dialing - n/a - Yes n/a
Customization
Custom Graphics Yes n/a Yes Yes n/a
Custom Ringtones Yes n/a Yes Yes n/a
Real-Music Ringers - n/a Yes - n/a
Data & Network
Data Tethering - n/a Yes Yes n/a
Dual-SIM - Yes * - - -
WAP / Web Browser Yes n/a Yes Yes n/a
Input
Predictive Text Entry Yes n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes - - Yes
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - n/a Yes Yes n/a
EMS / Picture Messaging Yes n/a - Yes n/a
Instant Messaging - n/a Yes - n/a
MMS Yes n/a Yes Yes n/a
Text Messaging Templates Yes n/a Yes Yes n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) - Yes - - Yes
Music Player - n/a Yes - n/a
Stereo Speakers - Yes - - -
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - -
Power
Fast Charging - Yes - - Yes
Productivity
Alarm Yes n/a Yes Yes n/a
Calculator Yes n/a Yes Yes n/a
Calendar Yes n/a Yes Yes n/a
To-Do List Yes n/a - Yes n/a
Voice Memo Yes n/a Yes Yes n/a
Software
Games Yes n/a Yes Yes n/a
Java (J2ME) Yes n/a Yes - n/a
Voice
HD Voice - Yes - - Yes
Headset Jack (2.5 mm) Yes n/a - - n/a
Push-To-Talk - - Yes - -
Speaker Phone Yes Yes Yes - Yes
  * Some versions only
  Samsung SGH-X640 Sony Xperia XZ1 Samsung Rugby A837 Sony Ericsson T68i Motorola Moto z4
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 Sony Xperia XZ1 Samsung Rugby A837 Sony Ericsson T68i Motorola Moto z4

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