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Phone Samsung SCH-A310 Samsung SPH-N400 OnePlus 12R
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? ? 6.8" diag.
20 : 9
Display Resolution & Type 128 x 128 pixels
LCD (Grayscale)
128 x 128 pixels
LCD (STN)
1264 x 2780 pixels
(~450 ppi)
AMOLED
Display Refresh ? ? 120 Hz
Battery ? ? 5,500 mAh
Processor ? ? Snapdragon 8 Gen 2
RAM ? ? 8 GB *
Storage ? raw hardware ? raw hardware 128 GB *
Main Camera - - 50 megapixel
Wide Camera - - 8 megapixel
Tele Camera - - -
Video Capture - - 4K UHD
Front Camera - - 16 megapixel
Weight 3.2 oz
(91g)
4 oz
(113g)
7.3 oz
(207g)
Dimensions 3.43" x 1.89" x 0.87"
(87 x 48 x 22.1 mm)
4.25" x 2.04" x 0.82"
(108 x 52 x 20.8 mm)
6.43" x 2.96" x 0.35"
(163 x 75 x 8.8 mm)
Form Factor Clamshell Flip Slab
Platform / OS (proprietary) (proprietary) Android
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

5G: 1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT 1xRTT NR (5G)
Features 
Fingerprint Reader - - Yes
in-display (optical)
Flashlight - - Yes
GPS / Location Yes Yes n/a
Accessibility
Hearing Aid Compatible - - Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes n/a
TTY/TDD (Digital) - Yes -
Alerts
Extra Display Yes - -
Connectivity
Bluetooth - - Yes
Infrared (IR) - - Yes
NFC - - Yes
USB Yes Yes Yes
USB Type C
Wi-Fi - - Yes
7 (802.11 a,ac,ax,b,be,g,n)
Contacts
Picture ID - Yes n/a
Ringer ID - Yes n/a
Voice Dialing Yes Yes n/a
Customization
Changeable Body Plates Yes - -
Custom Graphics - Yes n/a
Custom Ringtones - Yes n/a
Data & Network
Data Tethering Yes Yes n/a
Dual-SIM - - Yes
WAP / Web Browser Yes Yes n/a
Input
Predictive Text Entry Yes Yes n/a
Side Keys Yes Yes Yes
Touch Screen - - Yes
Capacitive
Power
Fast Charging - - Yes
Productivity
Alarm - Yes n/a
Calculator - Yes n/a
Calendar Yes Yes n/a
To-Do List - Yes n/a
Voice Memo Yes - n/a
Software
Games Yes Yes n/a
Java (J2ME) - Yes n/a
Voice
HD Voice - - Yes
Headset Jack (2.5 mm) Yes Yes n/a
Speaker Phone - Yes Yes
  Samsung SCH-A310 Samsung SPH-N400 OnePlus 12R
  X > < X > < X

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

 
Phone Samsung SCH-A310 Samsung SPH-N400 OnePlus 12R

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