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Phone Ericsson R520 Sony Ericsson K850 BLU Vivo XL TCL 20 Pro 5G Audiovox CDM-8400 / CDM-8410
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2.2" diag.
4 : 3
5.5" diag.
16 : 9
6.7" diag.
20 : 9
?
Display Resolution & Type ? 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~267 ppi)
AMOLED
1080 x 2400 pixels
(~395 ppi)
AMOLED
128 x 128 pixels
LCD (STN)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery ? ? 3,150 mAh 4,500 mAh ?
Processor ? ? 1.3 GHz MediaTek 6753 2 GHz Qualcomm Snapdragon 750G ?
RAM ? ? 2 GB 6 GB ?
Storage ? raw hardware ? raw hardware 16 GB 256 GB ? raw hardware
Main Camera - 5 megapixel 13 megapixel 48 megapixel -
Wide Camera - - - 16 megapixel -
Tele Camera - - - - -
Video Capture - ? 1080p HD 4K UHD -
Front Camera - - 5 megapixel 32 megapixel -
Weight 4.23 oz
(120g)
4.2 oz
(119g)
5.36 oz
(152g)
6.82 oz
(193g)
3.52 oz
(100g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
4" x 1.9" x 0.7"
(102 x 48 x 17.8 mm)
6.11" x 3.02" x 0.3"
(155 x 77 x 7.5 mm)
6.46" x 2.87" x 0.36"
(164 x 73 x 9.1 mm)
4.3" x 1.8" x 0.7"
(109 x 46 x 17.8 mm)
Form Factor Slab Slab Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 7, 12, 17

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

5G: 2, 5, 7, 41, 66, 71, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS HSDPA 3.6 LTE (Cat 4) NR (5G) 1xRTT
Features 
Barometer - - - Yes -
Fingerprint Reader - - - Yes
in-display (optical)
-
Flashlight - - Yes Yes -
GPS / Location - - n/a n/a Yes
Water-Resistant - - - Yes
IPX2 (drip)
-
Accessibility
Adjustable Text Size - - n/a n/a -
Hearing Aid Compatible - - - Yes -
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Ringer Profiles Yes Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes -
Infrared (IR) Yes - - Yes -
Mobile Hotspot - - n/a n/a -
NFC - - - Yes -
USB - Yes Yes
USB Type C
Yes
USB Type C
-
Wi-Fi - - Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID - Yes n/a n/a -
Ringer ID - Yes n/a n/a -
Voice Dialing Yes Yes n/a n/a Yes
Customization
Custom Graphics - 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 Yes n/a n/a Yes
Dual-SIM - - Yes - -
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 Yes -
Messaging
Email Client - Yes n/a n/a -
EMS / Picture Messaging - - 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 -
Music
FM Radio - Yes Yes Yes -
Headphone Jack (3.5mm) - - Yes Yes -
Music Player - Yes n/a n/a -
Photo & Video
Video Calling - Yes * n/a n/a -
Power
Fast Charging - - Yes Yes -
Wireless 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 n/a n/a -
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 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
  Ericsson R520 Sony Ericsson K850 BLU Vivo XL TCL 20 Pro 5G Audiovox CDM-8400 / CDM-8410
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson R520 Sony Ericsson K850 BLU Vivo XL TCL 20 Pro 5G Audiovox CDM-8400 / CDM-8410

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