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Phone Kyocera DuraForce Pro 3 ZTE Z221 Sony Xperia Pro Ericsson R520
Current U.S. Carriers Verizon (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 5.4" diag.
18 : 9
2" diag.
4 : 3
6.5" diag.
21 : 9
?
Display Resolution & Type 1080 x 2160 pixels
(~449 ppi)
AMOLED
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
1644 x 3840 pixels
(~643 ppi)
AMOLED
?
Display Refresh 60 Hz ? 60 Hz ?
Battery 4,270 mAh 900 mAh 4,000 mAh ?
Processor 2.4 GHz Snapdragon 7 Gen 1 ? Qualcomm Snapdragon 865 ?
RAM 6 GB ? 12 GB ?
Storage 128 GB 142 MB 512 GB ? raw hardware
Main Camera 16 megapixel Yes 12 megapixel -
Wide Camera 16 megapixel - 12 megapixel -
Tele Camera - - 12 megapixel -
Video Capture 4K UHD QCIF (176 x 144) 4K UHD -
Front Camera 8 megapixel - 8 megapixel -
Weight 8.36 oz
(237g)
3.24 oz
(92g)
7.94 oz
(225g)
4.23 oz
(120g)
Dimensions 6.06" x 2.95" x 0.57"
(154 x 75 x 14.5 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
6.7" x 3" x 0.4"
(170 x 76 x 10.2 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS Android (proprietary) Android (proprietary)
Network Bands

5G: 2, 5, 48, 66, 77-A, 77-C, 78, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 46, 48, 66

WCDMA: 1, 2, 5, 8

WCDMA: 2, 5

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

GSM: 900, 1800, 1900

Data Technology NR (5G) HSDPA 3.6 NR (5G) GPRS
Features 
Barometer Yes - - -
Fingerprint Reader Yes
stand-alone
- Yes
stand-alone
-
Flashlight Yes - Yes -
GPS / Location n/a Yes n/a -
Ruggedized Yes - - -
Water-Resistant Yes
IPX8 (SCUBA)
- Yes
IPX8 (SCUBA)
-
Accessibility
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display - Yes - -
Ringer Profiles - Yes - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) - - - Yes
NFC Yes - Yes -
USB Yes
USB Type C
Yes Yes
USB Type C
-
Wi-Fi Yes
6E (802.11 a,ac,ax,b,g,n)
- Yes
6 (802.11 a,ac,ax,b,g,n)
-
Contacts
Voice Dialing n/a - n/a Yes
Customization
Custom Graphics n/a Yes n/a -
Custom Ringtones n/a Yes n/a Yes
Real-Music Ringers n/a Yes n/a -
Data & Network
Data Tethering n/a - n/a Yes
Dual-SIM Yes - Yes -
WAP / Web Browser n/a Yes n/a Yes
Input
Predictive Text Entry n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen Yes - Yes -
Memory
Memory Card Slot Yes - Yes -
Messaging
Email Client n/a Yes n/a -
Instant Messaging n/a Yes n/a -
MMS n/a Yes n/a -
Text Messaging Templates n/a Yes n/a Yes
Music
Headphone Jack (3.5mm) - - Yes -
Stereo Speakers Yes - Yes -
Photo & Video
Miracast Yes - - -
TV Output - - Yes -
Power
Fast Charging Yes - Yes -
Wireless Charging Yes - - -
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a Yes
Voice Memo n/a Yes n/a Yes
Software
Games n/a Yes n/a Yes
Java (J2ME) n/a Yes n/a -
Voice
HD Voice Yes - Yes -
Push-To-Talk Yes - - -
Speaker Phone Yes Yes Yes Yes
  Kyocera DuraForce Pro 3 ZTE Z221 Sony Xperia Pro Ericsson R520
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Phone Kyocera DuraForce Pro 3 ZTE Z221 Sony Xperia Pro Ericsson R520

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