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Phone Samsung SCH-A990 Kyocera DuraCore / DuraShock Samsung SGH-X640 Motorola Droid X Kyocera DuraForce Pro 3
Current U.S. Carriers (none) (none) (none) (none) Verizon
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2" diag.
4 : 3
? 4.3" diag.
16 : 9
5.4" diag.
18 : 9
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~228 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~449 ppi)
AMOLED
Display Refresh ? ? ? 60 Hz 60 Hz
Battery 1,000 mAh 1,360 mAh 800 mAh 1,540 mAh 4,270 mAh
Processor ? Qualcomm QSC6085 ? 1 GHz TI OMAP 3630 (ARM Cortex A8) 2.4 GHz Snapdragon 7 Gen 1
RAM ? ? ? ? 6 GB
Storage ? raw hardware ? raw hardware ? raw hardware 8 GB 128 GB
Main Camera 3 megapixel - Yes 8 megapixel 16 megapixel
Wide Camera - - - - 16 megapixel
Tele Camera - - - - -
Video Capture ? - - 720p HD 4K UHD
Front Camera - - - - 8 megapixel
Weight 4.4 oz
(125g)
4.44 oz
(126g)
3 oz
(85g)
5.47 oz
(155g)
8.36 oz
(237g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.88" x 1.96" x 0.94"
(99 x 50 x 23.9 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5" x 2.6" x 0.4"
(127 x 66 x 10.2 mm)
6.06" x 2.95" x 0.57"
(154 x 75 x 14.5 mm)
Form Factor Clamshell Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android Android
Network Bands

CDMA: 850, 1900

CDMA: 800, 850, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

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

Data Technology EVDO r0 EVDO rA GPRS EVDO rA NR (5G)
Features 
Barometer - - - - Yes
Fingerprint Reader - - - - Yes
stand-alone
Flashlight Yes - - - Yes
GPS / Location Yes Yes - n/a n/a
Ruggedized - Yes - - Yes
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - Yes - n/a n/a
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M4, T4 (very tele-coil compatible)
- Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes Yes - - -
Connectivity
Bluetooth Yes Yes - Yes Yes
Mobile Hotspot - - - n/a n/a
NFC - - - - Yes
USB Yes Yes - Yes Yes
USB Type C
Wi-Fi - - - Yes Yes
6E (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID Yes - Yes n/a n/a
Ringer ID Yes Yes Yes n/a n/a
Voice Dialing Yes Yes - n/a n/a
Customization
Custom Graphics Yes Yes Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers Yes Yes - n/a n/a
Data & Network
Data Tethering Yes - - n/a n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - - Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes - - Yes Yes
Messaging
Email Client - - - n/a n/a
EMS / Picture Messaging Yes - Yes n/a n/a
Instant Messaging - - - n/a n/a
MMS Yes Yes Yes n/a n/a
Text Messaging Templates Yes Yes Yes n/a n/a
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - - - Yes -
Music Player Yes - - n/a n/a
Stereo Speakers Yes - - - Yes
Photo & Video
DLNA - - - Yes -
Miracast - - - - Yes
TV Output Yes - - Yes -
Power
Fast Charging - - - - Yes
Wireless Charging - - - - Yes
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes Yes n/a n/a
To-Do List - - Yes n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
BREW Yes - - n/a n/a
Games Yes Yes Yes n/a n/a
Java (J2ME) - Yes Yes n/a n/a
Voice
HD Voice - - - - Yes
Headset Jack (2.5 mm) - Yes Yes n/a n/a
Push-To-Talk - Yes * - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SCH-A990 Kyocera DuraCore / DuraShock Samsung SGH-X640 Motorola Droid X Kyocera DuraForce Pro 3
  X > < X > < X > < X > < X

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

 
Phone Samsung SCH-A990 Kyocera DuraCore / DuraShock Samsung SGH-X640 Motorola Droid X Kyocera DuraForce Pro 3

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