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Phone Samsung M520 Samsung SGH-X820 OnePlus 12R Motorola Defy (2010) Samsung SCH-A645
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
? 6.8" diag.
20 : 9
3.6" diag.
16 : 9
?
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
220 x 176 pixels
LCD (TFT/TFD)
1264 x 2780 pixels
(~450 ppi)
AMOLED
480 x 854 pixels
(~272 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
Display Refresh ? ? 120 Hz 60 Hz ?
Battery ? 650 mAh 5,500 mAh 1,540 mAh 1,000 mAh
Processor ? ? Snapdragon 8 Gen 2 800 MHz TI OMAP3610 ?
RAM ? ? 8 GB * ? ?
Storage ? raw hardware ? raw hardware 128 GB * ? raw hardware ? raw hardware
Main Camera 1 megapixel 2 megapixel 50 megapixel 5 megapixel -
Wide Camera - - 8 megapixel - -
Tele Camera - - - - -
Video Capture ? ? 4K UHD ? -
Front Camera - - 16 megapixel - -
Weight 2.75 oz
(78g)
2.33 oz
(66g)
7.3 oz
(207g)
4.16 oz
(118g)
3.2 oz
(91g)
Dimensions 4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
6.43" x 2.96" x 0.35"
(163 x 75 x 8.8 mm)
4.21" x 2.32" x 0.53"
(107 x 59 x 13.4 mm)
3.54" x 1.79" x 0.94"
(90 x 45 x 23.9 mm)
Form Factor Slide Slab Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) Android Android (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

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

WCDMA: 1, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology EVDO r0 EDGE NR (5G) HSPA 7.2 1xRTT
Features 
Fingerprint Reader - - Yes
in-display (optical)
- -
Flashlight - - Yes - -
GPS / Location Yes - n/a n/a Yes
Ruggedized - - - Yes -
Accessibility
Hearing Aid Compatible Yes - Yes - Yes
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) Yes - - Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes -
Infrared (IR) - - Yes - -
NFC - - Yes - -
USB Yes Yes Yes
USB Type C
Yes
Micro-USB
-
Wi-Fi - - Yes
7 (802.11 a,ac,ax,b,be,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes Yes n/a n/a Yes
Ringer ID Yes Yes n/a n/a -
Voice Dialing Yes - n/a n/a Yes
Customization
Custom Graphics Yes Yes n/a n/a Yes
Custom Ringtones Yes Yes n/a n/a Yes
Real-Music Ringers - Yes n/a n/a -
Data & Network
Data Tethering Yes - n/a n/a -
Dual-SIM - - Yes - -
External Antenna Jack - Yes n/a n/a -
WAP / Web Browser Yes Yes n/a n/a Yes *
Input
Predictive Text Entry Yes Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes Yes -
Memory
Memory Card Slot Yes - - Yes -
Messaging
Email Client - Yes n/a n/a -
EMS / Picture Messaging - Yes n/a n/a Yes
Instant Messaging - - n/a n/a -
MMS - Yes n/a n/a -
Text Messaging Templates Yes Yes n/a n/a Yes
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - - - Yes -
Music Player Yes - n/a n/a -
Photo & Video
DLNA - - - Yes -
TV Output - Yes - - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a Yes
Calendar Yes Yes n/a n/a Yes
To-Do List Yes Yes n/a n/a Yes
Voice Memo Yes Yes n/a n/a Yes
Software
BREW - - n/a n/a Yes *
Games Yes Yes n/a n/a Yes *
Java (J2ME) Yes Yes n/a n/a -
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) - - n/a n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung M520 Samsung SGH-X820 OnePlus 12R Motorola Defy (2010) Samsung SCH-A645
  X > < X > < X > < X > < X

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

 
Phone Samsung M520 Samsung SGH-X820 OnePlus 12R Motorola Defy (2010) Samsung SCH-A645

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