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Phone Kyocera DuraXV Extreme / Extreme+ BlackBerry Curve 8330 Samsung Galaxy J2 / J2 Pure / J2 Dash HTC G2 Samsung Galaxy A21
Current U.S. Carriers Verizon (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.6" diag.
4 : 3
? 5" diag.
16 : 9
3.7" diag.
5 : 3
6.5" diag.
20 : 9
Display Resolution & Type 240 x 320 pixels
(~154 ppi)
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz 60 Hz
Battery 1,770 mAh 1,150 mAh 2,600 mAh 1,300 mAh 4,000 mAh
Processor 2 GHz MediaTek Helio A22 (6761) ? 1.4 GHz Samsung Exynos 7570 800 MHz Qualcomm S2 MSM7230 2 GHz MediaTek Helio P35 (MT6765)
RAM 2 GB ? 2 GB ? 3 GB
Storage 16 GB ? raw hardware 16 GB ? raw hardware 32 GB
Main Camera 5 megapixel 2 megapixel 8 megapixel 5 megapixel 16 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture 720p HD ? 1080p HD 720p HD 1080p HD
Front Camera - - 5 megapixel - 13 megapixel
Weight 6.8 oz
(193g)
4.02 oz
(114g)
5.43 oz
(154g)
6.5 oz
(184g)
6.81 oz
(193g)
Dimensions 4.36" x 2.22" x 1.07"
(111 x 56 x 27.2 mm)
4.2" x 2.4" x 0.6"
(107 x 61 x 15.2 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
6.61" x 3.02" x 0.32"
(168 x 77 x 8.1 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) BlackBerry OS Android Android Android
Network Bands

4G LTE: 2, 4, 5, 12, 13

WCDMA: 1, 2, 5

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) EVDO r0 LTE (Cat 4) HSPA 14.4 LTE (Cat 6)
Features 
Barometer Yes * - - - -
Fingerprint Reader - - - - Yes
stand-alone
Flashlight Yes - Yes - Yes
GPS / Location Yes n/a n/a n/a n/a
Ruggedized Yes - - - -
Water-Resistant Yes
IPX8 (SCUBA)
- - - -
Accessibility
Adjustable Text Size Yes n/a n/a n/a n/a
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display Yes - - - -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot Yes n/a n/a n/a n/a
NFC - - - - Yes
USB Yes
USB Type C
Yes
Mini-USB
Yes
Micro-USB
Yes Yes
USB Type C
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a n/a n/a n/a
Ringer ID Yes n/a n/a n/a n/a
Voice Dialing Yes n/a n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - Yes -
Touch Screen - - Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client Yes n/a n/a n/a n/a
Instant Messaging - n/a n/a n/a n/a
MMS Yes n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) Yes Yes Yes Yes Yes
Music Player Yes n/a n/a n/a n/a
Power
Fast Charging - - - - Yes
Productivity
Alarm Yes n/a n/a n/a n/a
Calculator Yes n/a n/a n/a n/a
Calendar Yes n/a n/a n/a n/a
To-Do List - n/a n/a n/a n/a
Voice Memo Yes n/a n/a n/a n/a
Software
Games - n/a n/a n/a n/a
Java (J2ME) - n/a n/a n/a n/a
Voice
HD Voice Yes - - - Yes
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Kyocera DuraXV Extreme / Extreme+ BlackBerry Curve 8330 Samsung Galaxy J2 / J2 Pure / J2 Dash HTC G2 Samsung Galaxy A21
  X > < X > < X > < X > < X

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

 
Phone Kyocera DuraXV Extreme / Extreme+ BlackBerry Curve 8330 Samsung Galaxy J2 / J2 Pure / J2 Dash HTC G2 Samsung Galaxy A21

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