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Phone Siemens CX75 Pantech Matrix Pro C820 Sony Xperia Z3 Compact Sony Xperia Pro Samsung Axle R311
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
4.6" diag.
16 : 9
6.5" diag.
21 : 9
1.9" diag.
4 : 3
Display Resolution & Type 132 x 176 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~319 ppi)
LCD (TFT/TFD)
1644 x 3840 pixels
(~643 ppi)
AMOLED
176 x 220 pixels
(~148 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery 750 mAh 1,320 mAh 2,600 mAh 4,000 mAh ?
Processor ? 528 MHz ARM 11 2.5 GHz Qualcomm Snapdragon 801 (MSM8974AC) Qualcomm Snapdragon 865 ?
RAM ? ? 2 GB 12 GB ?
Storage ? raw hardware ? raw hardware 16 GB 512 GB ? raw hardware
Main Camera 1 megapixel 2 megapixel 20 megapixel 12 megapixel Yes
Wide Camera - - - 12 megapixel -
Tele Camera - - - 12 megapixel -
Video Capture ? QCIF (176 x 144) 4K UHD 4K UHD -
Front Camera - - 2 megapixel 8 megapixel -
Weight 3.46 oz
(98g)
5.34 oz
(151g)
4.55 oz
(129g)
7.94 oz
(225g)
3.37 oz
(96g)
Dimensions 4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
5" x 2.56" x 0.34"
(127 x 65 x 8.6 mm)
6.7" x 3" x 0.4"
(170 x 76 x 10.2 mm)
3.54" x 1.77" x 0.77"
(90 x 45 x 19.6 mm)
Form Factor Slab Slide Slab Slab Clamshell
Platform / OS (proprietary) Windows Mobile Standard Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 13, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

5G: 2, 5, 66, 260, 261

4G LTE: 2, 4, 5, 7, 12, 13, 25, 26, 41, 48, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology GPRS HSDPA 3.6 LTE (Cat 4) NR (5G) 1xRTT
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - - - Yes -
GPS / Location - n/a n/a n/a Yes
Ruggedized - - Yes - -
Water-Resistant - - Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
-
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
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes - - - -
Mobile Hotspot - n/a n/a n/a -
NFC - - Yes Yes -
USB Yes Yes Yes
Micro-USB
Yes
USB Type C
-
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
-
Contacts
Picture ID Yes n/a n/a n/a Yes
Ringer ID Yes n/a n/a n/a Yes
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 Yes
Data & Network
Data Tethering Yes n/a n/a n/a Yes
Dual-SIM - - - 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 Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen - - Yes Yes -
Memory
Memory Card Slot Yes Yes Yes Yes -
Messaging
Email Client Yes n/a n/a n/a -
EMS / Picture Messaging Yes n/a n/a n/a -
Instant Messaging - n/a n/a n/a -
MMS Yes n/a n/a n/a Yes
Text Messaging Templates - n/a n/a n/a Yes
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) - - Yes Yes -
Music Player Yes n/a n/a n/a -
Stereo Speakers - - Yes Yes -
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
TV Output - - Yes Yes -
Power
Fast Charging - - Yes 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 Yes
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 -
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  Siemens CX75 Pantech Matrix Pro C820 Sony Xperia Z3 Compact Sony Xperia Pro Samsung Axle R311
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Siemens CX75 Pantech Matrix Pro C820 Sony Xperia Z3 Compact Sony Xperia Pro Samsung Axle R311

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