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Phone Samsung Jitterbug J / SPH-A310 Kyocera DuraForce XD Samsung SGH-X640 ZTE Blade Vantage
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
5.7" diag.
16 : 9
? 5" diag.
16 : 9
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (Color)
720 x 1280 pixels
(~258 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz
Battery ? 3,700 mAh 800 mAh 2,500 mAh
Processor ? 1.6 GHz Qualcomm Snapdragon 400 (MSM8928) ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM ? 2 GB ? 2 GB
Storage ? raw hardware 16 GB ? raw hardware 16 GB
Main Camera - 8 megapixel Yes 8 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 1080p HD - 720p HD
Front Camera - 2 megapixel - 2 megapixel
Weight 3.99 oz
(113g)
10.83 oz
(307g)
3 oz
(85g)
5.29 oz
(150g)
Dimensions 3.87" x 2.16" x 0.97"
(98 x 55 x 24.6 mm)
6.57" x 3.4" x 0.55"
(167 x 86 x 14 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.73" x 2.85" x 0.36"
(146 x 72 x 9.2 mm)
Form Factor Clamshell Slab Clamshell Slab
Platform / OS (proprietary) Android (proprietary) Android
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 17, 20, 29

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 13

Data Technology - LTE (Cat 3) GPRS LTE (Cat 4)
Features 
Flashlight - Yes - Yes
GPS / Location Yes n/a - n/a
Ruggedized - Yes - -
Water-Resistant - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size - n/a - n/a
Hearing Aid Compatible Yes Yes - Yes
Multiple Languages - n/a Yes n/a
TTY/TDD (Digital) - Yes - Yes
Alerts
Extra Display Yes - - -
Connectivity
Bluetooth Yes Yes - Yes
Mobile Hotspot - n/a - n/a
NFC - Yes - -
USB - Yes
Micro-USB
- Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 b,g,n)
Contacts
Picture ID - n/a Yes n/a
Ringer ID - n/a Yes n/a
Voice Dialing Yes n/a - n/a
Customization
Custom Graphics - n/a Yes n/a
Custom Ringtones - n/a Yes n/a
Real-Music Ringers - n/a - n/a
Data & Network
Data Tethering - n/a - n/a
WAP / Web Browser - n/a Yes n/a
Input
Predictive Text Entry - n/a Yes n/a
Side Keys Yes Yes Yes Yes
Touch Screen - Yes - Yes
Memory
Memory Card Slot - Yes - Yes
Messaging
Email Client - n/a - n/a
EMS / Picture Messaging - n/a Yes n/a
MMS - n/a Yes n/a
Text Messaging Templates Yes n/a Yes n/a
Music
Headphone Jack (3.5mm) - Yes - Yes
Music Player - n/a - n/a
Photo & Video
Miracast - Yes - -
Power
Fast Charging - Yes - -
Productivity
Alarm - n/a Yes n/a
Calculator - n/a Yes n/a
Calendar - n/a Yes n/a
To-Do List - n/a Yes n/a
Voice Memo - n/a Yes n/a
Software
Games - n/a Yes n/a
Java (J2ME) - n/a Yes n/a
Voice
HD Voice - Yes - Yes
Headset Jack (2.5 mm) - n/a Yes n/a
Push-To-Talk - Yes - -
Speaker Phone Yes Yes Yes Yes
  Samsung Jitterbug J / SPH-A310 Kyocera DuraForce XD Samsung SGH-X640 ZTE Blade Vantage
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Jitterbug J / SPH-A310 Kyocera DuraForce XD Samsung SGH-X640 ZTE Blade Vantage

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