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Phone Kyocera DuraXE Epic / DuraXA Equip Nokia Lumia 521 / 520 BlackBerry Curve 3G 9330 Sony Xperia X
Current U.S. Carriers US Cellular (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.6" diag.
4 : 3
4" diag.
5 : 3
2.5" diag.
4 : 3
5" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
(~154 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~160 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~441 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz
Battery 1,770 mAh 1,430 mAh 1,150 mAh 2,620 mAh
Processor 1.2 GHz Qualcomm Snapdragon 215 1 GHz Qualcomm Snapdragon S4 MSM8270 ? 1.8 GHz Qualcomm Snapdragon 650 (MSM8956)
RAM 2 GB 512 MB ? 3 GB
Storage 16 GB 8 GB ? raw hardware 32 GB *
Main Camera 5 megapixel 5 megapixel 2 megapixel 23 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD 720p HD ? 1080p HD
Front Camera - - - 13 megapixel
Weight 6.8 oz
(193g)
4.39 oz
(124g)
3.7 oz
(105g)
5.4 oz
(153g)
Dimensions 4.36" x 2.22" x 1.07"
(111 x 56 x 27.2 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.29" x 2.36" x 0.55"
(109 x 60 x 14 mm)
5.6" x 2.7" x 0.3"
(142 x 69 x 7.6 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Windows BlackBerry OS Android
Network Bands

4G LTE: 2, 4, 5, 12, 14, 66

WCDMA: 1, 2, 4, 5

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) HSPA+ 21 EVDO r0 LTE (Cat 6)
Features 
Barometer Yes - - -
Fingerprint Reader - - - Yes *
Flashlight Yes - - Yes
GPS / Location Yes n/a n/a n/a
Ruggedized Yes - - -
Water-Resistant Yes
IPX8 (SCUBA)
- - -
Accessibility
Adjustable Text Size Yes n/a n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - -
Ringer Profiles - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes Yes
Classic Audio
Yes
Classic Audio
MirrorLink - - - Yes
Mobile Hotspot Yes n/a n/a n/a
NFC - - - Yes
USB Yes
USB Type C
Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi Yes
4 (802.11 a,b,g,n)
Yes Yes
802.11 b,g
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 n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a
Dual-SIM - - - Yes *
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys 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
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
FM Radio Yes - - Yes
Headphone Jack (3.5mm) Yes Yes Yes Yes
Music Player Yes n/a n/a n/a
Photo & Video
DLNA - - - Yes
Miracast - - - Yes
Power
Fast Charging - - - Yes
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
To-Do List - n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
Games - n/a n/a n/a
Java (J2ME) - n/a n/a n/a
Voice
HD Voice Yes - - Yes
Push-To-Talk Yes - - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Kyocera DuraXE Epic / DuraXA Equip Nokia Lumia 521 / 520 BlackBerry Curve 3G 9330 Sony Xperia X
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Kyocera DuraXE Epic / DuraXA Equip Nokia Lumia 521 / 520 BlackBerry Curve 3G 9330 Sony Xperia X

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