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Phone Ericsson R520 Samsung Galaxy A51 (4G) Motorola C290
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 6.5" diag.
20 : 9
?
Display Resolution & Type ? 1080 x 2400 pixels
(~405 ppi)
AMOLED
128 x 160 pixels
LCD (STN)
Display Refresh ? 60 Hz ?
Battery ? 4,000 mAh 1,020 mAh
Processor ? 2.3 GHz Samsung Exynos 9611 ?
RAM ? 4 GB ?
Storage ? raw hardware 128 GB ? raw hardware
Main Camera - 48 megapixel -
Wide Camera - 12 megapixel -
Tele Camera - - -
Video Capture - 4K UHD -
Front Camera - 32 megapixel -
Weight 4.23 oz
(120g)
6.07 oz
(172g)
3.53 oz
(100g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
6.24" x 2.89" x 0.31"
(158 x 73 x 7.9 mm)
3.43" x 1.91" x 0.93"
(87 x 49 x 23.6 mm)
Form Factor Slab Slab Clamshell
Platform / OS (proprietary) Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 26, 28, 30, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS LTE (Cat 12) 1xRTT
Features 
Fingerprint Reader - Yes
in-display (optical)
-
Flashlight - Yes -
GPS / Location - n/a Yes
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes n/a Yes
TTY/TDD (Digital) - Yes Yes
Alerts
Ringer Profiles Yes - -
Connectivity
Bluetooth Yes Yes -
Infrared (IR) Yes - -
MirrorLink - Yes -
NFC - Yes -
USB - Yes
USB Type C
Yes
Mini-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID - n/a Yes
Ringer ID - n/a Yes
Voice Dialing Yes n/a -
Customization
Custom Ringtones Yes n/a -
Real-Music Ringers - n/a Yes
Data & Network
Data Tethering Yes n/a -
External Antenna Jack - n/a Yes
WAP / Web Browser Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes
Side Keys Yes Yes Yes
Touch Screen - Yes
Capacitive
-
Memory
Memory Card Slot - Yes -
Messaging
Text Messaging Templates Yes n/a Yes
Music
Headphone Jack (3.5mm) - Yes -
Power
Fast Charging - Yes -
Productivity
Alarm Yes n/a Yes
Calculator Yes n/a Yes
Calendar Yes n/a Yes
Voice Memo Yes n/a Yes
Software
Games Yes n/a Yes
Java (J2ME) - n/a Yes
Voice
HD Voice - Yes -
Headset Jack (2.5 mm) - n/a Yes
Speaker Phone Yes Yes Yes
  Ericsson R520 Samsung Galaxy A51 (4G) Motorola C290
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Phone Ericsson R520 Samsung Galaxy A51 (4G) Motorola C290

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