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Phone Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo LG A340 Samsung Galaxy Ring / Prevail 2 Siemens M75 Nubia Red Magic 3 / 3S
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size 5.5" diag.
16 : 9
2.4" diag.
4 : 3
4" diag.
5 : 3
? 6.7" diag.
19.5 : 9
Display Resolution & Type 720 x 1280 pixels
(~267 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
132 x 176 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~388 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz ? 90 Hz
Battery 3,300 mAh 900 mAh 1,750 mAh 750 mAh 5,000 mAh
Processor 1.6 GHz Samsung Exynos 7870 Qualcomm QSC6270 1.4 GHz Qualcomm Snapdragon S2 MSM8655 ? Qualcomm Snapdragon 855+
RAM 2 GB ? 1 GB ? 8 GB *
Storage 16 GB * ? raw hardware 4 GB ? raw hardware 128 GB *
Main Camera 8 megapixel 1 megapixel 5 megapixel 1 megapixel 48 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD QVGA (320 x 240) 720p HD ? 4K UHD
Front Camera Yes - 1 megapixel - 16 megapixel
Weight 5.8 oz
(164g)
3.56 oz
(101g)
3.4 oz
(96g)
3.88 oz
(110g)
7.58 oz
(215g)
Dimensions 5.96" x 3.01" x 0.34"
(151 x 76 x 8.6 mm)
4.02" x 2.05" x 0.67"
(102 x 52 x 17 mm)
4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
4.35" x 2.03" x 0.82"
(110 x 52 x 20.8 mm)
6.76" x 3.09" x 0.38"
(172 x 79 x 9.7 mm)
Form Factor Slab Clamshell Slab Slab Slab
Platform / OS Android (proprietary) Android (proprietary) Android
Network Bands

4G LTE: 2, 3, 4, 5, 7, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 800, 850, 1900

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 34, 38, 39, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8, 19

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 6) HSDPA 3.6 EVDO rA GPRS LTE (Cat 9)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight Yes - - - Yes
GPS / Location n/a Yes n/a - n/a
Ruggedized - - - Yes -
Accessibility
Adjustable Text Size n/a Yes n/a - n/a
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M4 (very compatible)
- -
Multiple Languages n/a Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display - Yes - - -
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - - - Yes -
USB Yes
Micro-USB
Yes
Micro-USB
Yes Yes Yes
USB Type C
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 a,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a Yes n/a Yes n/a
Ringer ID n/a Yes n/a Yes n/a
Voice Dialing n/a Yes n/a - n/a
Customization
Custom Graphics n/a Yes n/a Yes n/a
Custom Ringtones n/a Yes n/a Yes n/a
Real-Music Ringers n/a Yes n/a - n/a
Data & Network
Data Tethering n/a Yes n/a Yes n/a
Dual-SIM - - - - Yes
WAP / Web Browser n/a Yes n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen Yes
Capacitive
- Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes -
Messaging
Email Client n/a - n/a Yes n/a
EMS / Picture Messaging n/a - n/a Yes n/a
Instant Messaging n/a - n/a - n/a
MMS n/a Yes n/a Yes n/a
Text Messaging Templates n/a Yes n/a - n/a
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player n/a Yes n/a Yes n/a
Stereo Speakers - - - - Yes
Photo & Video
DLNA - - Yes - -
TV Output - - - - Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm n/a Yes n/a Yes n/a
Calculator n/a Yes n/a Yes n/a
Calendar n/a Yes n/a Yes n/a
To-Do List n/a Yes n/a Yes n/a
Voice Memo n/a Yes n/a Yes n/a
Software
Games n/a Yes n/a Yes n/a
Java (J2ME) n/a Yes n/a Yes n/a
Voice
HD Voice Yes - - - Yes
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo LG A340 Samsung Galaxy Ring / Prevail 2 Siemens M75 Nubia Red Magic 3 / 3S
  X > < X > < X > < X > < X

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

 
Phone Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo LG A340 Samsung Galaxy Ring / Prevail 2 Siemens M75 Nubia Red Magic 3 / 3S

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