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Phone Amazon Fire Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SCH-A930 Samsung SGH-A657 Samsung Galaxy Ring / Prevail 2
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
5" diag.
16 : 9
? ? 4" diag.
5 : 3
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? 60 Hz
Battery 2,400 mAh 2,600 mAh 1,000 mAh 1,420 mAh 1,750 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 1.4 GHz Samsung Exynos 7570 ? ? 1.4 GHz Qualcomm Snapdragon S2 MSM8655
RAM 2 GB 2 GB ? ? 1 GB
Storage 32 GB * 16 GB ? raw hardware ? raw hardware 4 GB
Main Camera 13 megapixel 8 megapixel 1 megapixel - 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD 1080p HD ? - 720p HD
Front Camera 2 megapixel 5 megapixel - - 1 megapixel
Weight 5.64 oz
(160g)
5.43 oz
(154g)
3.98 oz
(113g)
4.34 oz
(123g)
3.4 oz
(96g)
Dimensions 5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
3.59" x 1.89" x 0.98"
(91 x 48 x 24.9 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
Form Factor Slab Slab Clamshell Slab Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) Android
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

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

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 800, 850, 1900

Data Technology LTE (Cat 4) LTE (Cat 4) EVDO r0 HSDPA 3.6 EVDO rA
Features 
Flashlight Yes Yes - Yes -
GPS / Location Yes n/a Yes Yes n/a
Ruggedized - - - Yes -
Accessibility
Adjustable Text Size - n/a - - n/a
Hearing Aid Compatible Yes Yes Yes - Yes
Multiple Languages Yes n/a Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot Yes n/a - - n/a
NFC Yes - - - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes Yes Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
- - Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes n/a Yes Yes n/a
Ringer ID Yes n/a Yes Yes n/a
Voice Dialing Yes n/a Yes - n/a
Customization
Custom Graphics - n/a Yes Yes n/a
Custom Ringtones Yes n/a Yes Yes n/a
Real-Music Ringers - n/a - Yes n/a
Data & Network
Data Tethering Yes n/a - Yes n/a
WAP / Web Browser Yes n/a Yes Yes n/a
Input
Predictive Text Entry Yes n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes Yes - - Yes
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client Yes n/a - Yes n/a
EMS / Picture Messaging - n/a Yes - n/a
Instant Messaging - n/a Yes Yes n/a
MMS Yes n/a Yes Yes n/a
Text Messaging Templates Yes n/a - Yes n/a
Music
Headphone Jack (3.5mm) Yes Yes - - Yes
Music Player Yes n/a Yes Yes n/a
Stereo Speakers Yes - Yes - -
Photo & Video
DLNA - - - - Yes
Miracast Yes - - - -
TV Output Yes - - - -
Productivity
Alarm Yes n/a Yes Yes n/a
Calculator Yes n/a Yes Yes n/a
Calendar Yes n/a Yes Yes n/a
To-Do List - n/a - Yes n/a
Voice Memo Yes n/a Yes Yes n/a
Software
BREW - n/a Yes - n/a
Games Yes n/a Yes Yes n/a
Java (J2ME) - n/a - Yes n/a
Voice
HD Voice Yes - - - -
Headset Jack (2.5 mm) - n/a Yes - n/a
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Amazon Fire Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SCH-A930 Samsung SGH-A657 Samsung Galaxy Ring / Prevail 2
  X > < X > < X > < X > < X

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

 
Phone Amazon Fire Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SCH-A930 Samsung SGH-A657 Samsung Galaxy Ring / Prevail 2

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