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Phone Kyocera DuraXV Extreme / Extreme+ Motorola T730 / T731c Sanyo RL-4930 Ericsson R278d
Current U.S. Carriers Verizon (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.6" diag.
4 : 3
? ? ?
Display Resolution & Type 240 x 320 pixels
(~154 ppi)
LCD (TFT/TFD)
120 x 160 pixels
LCD (STN)
128 x 112 pixels
LCD (STN)
101 x 40 pixels
Display Refresh ? ? ? ?
Battery 1,770 mAh 750 mAh 1,700 mAh ?
Processor 2 GHz MediaTek Helio A22 (6761) ? ? ?
RAM 2 GB ? ? ?
Storage 16 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera 5 megapixel - - -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD - - -
Front Camera - - - -
Weight 6.8 oz
(193g)
4.06 oz
(115g)
4.4 oz
(125g)
9.28 oz
(263g)
Dimensions 4.36" x 2.22" x 1.07"
(111 x 56 x 27.2 mm)
3.54" x 1.87" x 0.91"
(90 x 47 x 23.1 mm)
4.5" x 2" x 1"
(114 x 51 x 25.4 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
Form Factor Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

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

WCDMA: 1, 2, 5

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

TDMA: 850, 1900

AMPS: 850

Data Technology LTE (Cat 4) 1xRTT 1xRTT -
Features 
Barometer Yes * - - -
Flashlight Yes - - -
GPS / Location Yes Yes Yes -
Ruggedized Yes - Yes -
Water-Resistant Yes
IPX8 (SCUBA)
- - -
Accessibility
Adjustable Text Size Yes - - -
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
- - -
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display Yes Yes - -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes - - -
Mobile Hotspot Yes - - -
USB Yes
USB Type C
Yes Yes -
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- - -
Contacts
Picture ID Yes - Yes -
Ringer ID Yes Yes Yes -
Voice Dialing Yes Yes Yes -
Customization
Changeable Body Plates - Yes - -
Custom Graphics Yes Yes Yes -
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers Yes - - -
Data & Network
Data Tethering Yes Yes - Yes
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes
Memory
Memory Card Slot Yes - - -
Messaging
Email Client Yes Yes - -
EMS / Picture Messaging - Yes - -
MMS Yes - - -
Text Messaging Templates Yes Yes - -
Music
FM Radio Yes - - -
Headphone Jack (3.5mm) Yes - - -
Music Player Yes - - -
Productivity
Alarm Yes Yes Yes Yes
Calculator Yes Yes - -
Calendar Yes Yes Yes -
To-Do List - - Yes -
Voice Memo Yes Yes Yes -
Software
BREW - Yes * - -
Games - Yes Yes -
Java (J2ME) - - Yes -
Voice
Call Screening - - Yes -
HD Voice Yes - - -
Headset Jack (2.5 mm) - Yes - -
Push-To-Talk Yes - Yes -
Speaker Phone Yes - Yes -
  * Some versions only
  Kyocera DuraXV Extreme / Extreme+ Motorola T730 / T731c Sanyo RL-4930 Ericsson R278d
  X > < X > < X > < X

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

 
Phone Kyocera DuraXV Extreme / Extreme+ Motorola T730 / T731c Sanyo RL-4930 Ericsson R278d

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