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Phone Amazon Fire LG AX-390 / UX-390 Motorola v66 Motorola Droid Maxx 2 Samsung SGH-A157
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
? ? 5.5" diag.
16 : 9
1.8" diag.
4 : 3
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
? 1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 2,400 mAh 1,000 mAh ? 3,630 mAh 800 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 ? ? 1.7 GHz Qualcomm Snapdragon 615 ?
RAM 2 GB ? ? 2 GB ?
Storage 32 GB * ? raw hardware ? raw hardware 16 GB 256 MB
Main Camera 13 megapixel - - 20 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD - - 1080p HD -
Front Camera 2 megapixel - - 5 megapixel -
Weight 5.64 oz
(160g)
3.74 oz
(106g)
2.79 oz
(79g)
6.13 oz
(174g)
2.99 oz
(85g)
Dimensions 5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
3.82" x 1.98" x 0.94"
(97 x 50 x 23.9 mm)
3.31" x 1.73" x 0.83"
(84 x 44 x 21.1 mm)
5.8" x 2.9" x 0.43"
(147 x 74 x 10.9 mm)
3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
Form Factor Slab Clamshell Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) Android (proprietary)
Network Bands

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 13, 20

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) 1xRTT GPRS LTE (Cat 3) ?
Features 
Flashlight Yes - - Yes -
GPS / Location Yes Yes - n/a Yes
Water-Resistant - - - Yes -
Accessibility
Adjustable Text Size - - - n/a Yes
Hearing Aid Compatible Yes Yes - Yes Yes
Multiple Languages Yes Yes - n/a Yes
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display - Yes - - -
Ringer Profiles - - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
- - Yes
Classic Audio
-
Mobile Hotspot Yes - - n/a -
NFC Yes - - Yes -
USB Yes
Micro-USB
- Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- - Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes Yes - n/a Yes
Ringer ID Yes - - n/a Yes
Voice Dialing Yes Yes Yes n/a -
Customization
Custom Graphics - Yes - n/a Yes
Custom Ringtones Yes Yes - n/a Yes
Real-Music Ringers - Yes - n/a Yes
Data & Network
Data Tethering Yes - Yes n/a -
WAP / Web Browser Yes Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes -
Touch Screen Yes - - Yes -
Memory
Memory Card Slot - - - Yes -
Messaging
Email Client Yes - - n/a -
MMS Yes Yes - n/a Yes
Text Messaging Templates Yes - - n/a Yes
Music
Headphone Jack (3.5mm) Yes - - Yes -
Music Player Yes - - n/a -
Stereo Speakers Yes - - - -
Photo & Video
Miracast Yes - - Yes -
TV Output Yes - - - -
Power
Fast Charging - - - Yes -
Productivity
Alarm Yes Yes Yes n/a Yes
Calculator Yes Yes Yes n/a Yes
Calendar Yes Yes Yes n/a Yes
To-Do List - - - n/a Yes
Voice Memo Yes Yes Yes n/a Yes
Software
BREW - Yes - n/a -
Games Yes Yes Yes n/a -
Voice
HD Voice Yes - - Yes -
Headset Jack (2.5 mm) - Yes Yes n/a -
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes - Yes Yes
  Amazon Fire LG AX-390 / UX-390 Motorola v66 Motorola Droid Maxx 2 Samsung SGH-A157
  X > < X > < X > < X > < X

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

 
Phone Amazon Fire LG AX-390 / UX-390 Motorola v66 Motorola Droid Maxx 2 Samsung SGH-A157

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