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Phone Ericsson R520 Samsung SGH-X640 ZTE Concord II Sanyo Vero OnePlus 12
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 4" diag.
5 : 3
2.4" diag.
4 : 3
6.8" diag.
20 : 9
Display Resolution & Type ? 128 x 160 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1440 x 3168 pixels
(~510 ppi)
AMOLED
Display Refresh ? ? 60 Hz ? 120 Hz
Battery ? 800 mAh 1,820 mAh 840 mAh 5,400 mAh
Processor ? ? 1.2 GHz Qualcomm MSM8210 ? Snapdragon 8 Gen 3
RAM ? ? 1 GB ? 12 GB *
Storage ? raw hardware ? raw hardware 4 GB ? raw hardware 256 GB *
Main Camera - Yes 5 megapixel 1 megapixel 50 megapixel
Wide Camera - - - - 48 megapixel
Tele Camera - - - - 64 megapixel
Video Capture - - 720p HD - 8K
Front Camera - - - - 32 megapixel
Weight 4.23 oz
(120g)
3 oz
(85g)
4.4 oz
(125g)
3.4 oz
(96g)
7.76 oz
(220g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.96" x 2.56" x 0.42"
(126 x 65 x 10.7 mm)
3.78" x 2.05" x 0.63"
(96 x 52 x 16.1 mm)
6.47" x 2.98" x 0.36"
(164 x 76 x 9.1 mm)
Form Factor Slab Clamshell Slab Clamshell Slab
Platform / OS (proprietary) (proprietary) Android (proprietary) Android
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 30, 32, 38, 39, 40, 41, 48, 66, 71

WCDMA: 1, 2, 4, 5, 6, 8, 19

GSM: 850, 900, 1800, 1900

Data Technology GPRS GPRS HSPA+ 21 1xRTT NR (5G)
Features 
Fingerprint Reader - - - - Yes
in-display (optical)
Flashlight - - - - Yes
GPS / Location - - n/a Yes n/a
Accessibility
Adjustable Text Size - - n/a Yes n/a
Hearing Aid Compatible - - Yes
M3, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Multiple Languages Yes Yes n/a Yes n/a
TTY/TDD (Digital) - - Yes Yes -
Alerts
Extra Display - - - Yes -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes - Yes Yes Yes
Infrared (IR) Yes - - - -
Mobile Hotspot - - n/a - n/a
NFC - - - - Yes
USB - - Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - Yes
4 (802.11 b,g,n)
- Yes
7 (802.11 a,ac,ax,b,be,g,n)
Contacts
Picture ID - Yes n/a Yes n/a
Ringer ID - Yes n/a Yes n/a
Voice Dialing Yes - n/a Yes n/a
Customization
Custom Graphics - Yes n/a Yes n/a
Custom Ringtones Yes Yes n/a Yes n/a
Real-Music Ringers - - n/a - n/a
Data & Network
Data Tethering Yes - n/a Yes n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes Yes n/a Yes n/a
Input
Predictive Text Entry Yes Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot - - Yes - -
Messaging
Email Client - - n/a - n/a
EMS / Picture Messaging - Yes n/a Yes n/a
Instant Messaging - - n/a - n/a
MMS - Yes n/a - n/a
Text Messaging Templates Yes Yes n/a Yes n/a
Music
Headphone Jack (3.5mm) - - Yes - -
Music Player - - n/a - n/a
Power
Fast Charging - - - - Yes
Wireless Charging - - - - Yes
Productivity
Alarm Yes Yes n/a Yes n/a
Calculator Yes Yes n/a Yes n/a
Calendar Yes Yes n/a Yes n/a
To-Do List - Yes n/a Yes n/a
Voice Memo Yes Yes n/a Yes n/a
Software
Games Yes Yes n/a Yes n/a
Java (J2ME) - Yes n/a Yes n/a
Voice
HD Voice - - Yes - Yes
Headset Jack (2.5 mm) - Yes n/a Yes n/a
Speaker Phone Yes Yes Yes Yes Yes
  Ericsson R520 Samsung SGH-X640 ZTE Concord II Sanyo Vero OnePlus 12
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson R520 Samsung SGH-X640 ZTE Concord II Sanyo Vero OnePlus 12

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