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Phone LG AX-390 / UX-390 Samsung Galaxy Ring / Prevail 2 Samsung SCH-N330 ZTE Blade Max 3 / Max Blue
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 4" diag.
5 : 3
? 6" diag.
16 : 9
Display Resolution & Type 128 x 128 pixels
LCD (STN)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz
Battery 1,000 mAh 1,750 mAh ? 4,000 mAh
Processor ? 1.4 GHz Qualcomm Snapdragon S2 MSM8655 ? 2 GHz Qualcomm Snapdragon 625 (MSM8953)
RAM ? 1 GB ? 2 GB
Storage ? raw hardware 4 GB ? raw hardware 16 GB
Main Camera - 5 megapixel - 13 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 720p HD - 4K UHD
Front Camera - 1 megapixel - 5 megapixel
Weight 3.74 oz
(106g)
3.4 oz
(96g)
3.9 oz
(111g)
6.34 oz
(180g)
Dimensions 3.82" x 1.98" x 0.94"
(97 x 50 x 23.9 mm)
4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
3.8" x 1.9" x 0.9"
(97 x 48 x 22.9 mm)
6.49" x 3.3" x 0.35"
(165 x 84 x 8.9 mm)
Form Factor Clamshell Slab Slide Slab
Platform / OS (proprietary) Android (proprietary) Android
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 800, 850, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12, 13, 25

WCDMA: 2, 4, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT EVDO rA 1xRTT LTE (Cat 4)
Features 
Fingerprint Reader - - - Yes
stand-alone
Flashlight - - - Yes
GPS / Location Yes n/a Yes n/a
Accessibility
Adjustable Text Size - n/a - n/a
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M4 (very compatible)
Yes
M3 (mostly compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - -
Connectivity
Bluetooth - Yes - Yes
USB - Yes - Yes
USB Type C
Wi-Fi - Yes
4 (802.11 a,b,g,n)
- Yes
5 (802.11 ac,b,g,n)
Contacts
Picture ID Yes n/a Yes n/a
Ringer ID - n/a - n/a
Voice Dialing Yes n/a Yes n/a
Customization
Custom Graphics Yes n/a Yes n/a
Custom Ringtones Yes n/a Yes n/a
Real-Music Ringers Yes n/a - n/a
Data & Network
WAP / Web Browser Yes n/a Yes n/a
Input
Predictive Text Entry Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot - Yes - Yes
Messaging
Email Client - n/a - n/a
EMS / Picture Messaging - n/a Yes n/a
Instant Messaging - n/a - n/a
MMS Yes n/a - n/a
Text Messaging Templates - n/a Yes n/a
Music
Headphone Jack (3.5mm) - Yes - Yes
Music Player - n/a - n/a
Photo & Video
DLNA - Yes - -
Power
Fast Charging - - - Yes
Productivity
Alarm Yes n/a Yes n/a
Calculator Yes n/a Yes n/a
Calendar Yes n/a Yes n/a
To-Do List - n/a Yes n/a
Voice Memo Yes n/a Yes n/a
Software
BREW Yes n/a Yes n/a
Games Yes n/a Yes n/a
Voice
Headset Jack (2.5 mm) Yes n/a Yes n/a
Push-To-Talk Yes - - -
Speaker Phone Yes Yes Yes Yes
  LG AX-390 / UX-390 Samsung Galaxy Ring / Prevail 2 Samsung SCH-N330 ZTE Blade Max 3 / Max Blue
  X > < X > < X > < X

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

 
Phone LG AX-390 / UX-390 Samsung Galaxy Ring / Prevail 2 Samsung SCH-N330 ZTE Blade Max 3 / Max Blue

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