Samsung Galaxy A51 vs Samsung Galaxy Note 20

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from $400
from $845

Display

Size

6.5 inches
6.7 inches

Resolution

2400 x 1080 pixels, 20:9 ratio,
405 PPI
2400 x 1080 pixels, 20:9 ratio,
393 PPI

Technology

Super AMOLED
Super AMOLED Plus

Screen-to-body

87.37 %
89.23 %

Features

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip

Samsung Exynos 9611
Qualcomm Snapdragon 865+ SM8250-AB

Processor

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
Octa-core, 3000 MHz, Kryo 585, 64-bit, 7 nm

GPU

Mali-G72 MP3
Adreno 650

RAM

4GB LPDDR4
8GB LPDDR5

Internal storage

128GB, available to use: 105.9 GB
128GB (UFS 3.0), available to use: 102.5 GB, not expandable

Storage expansion

microSDXC up to 512 GB
 

Device type

Smartphone
Smartphone

OS

Android (10), Samsung One UI
Android (10), Samsung One UI

Battery

Capacity

4000 mAh
4300 mAh

Type

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results

Charging

Fast charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Camera

Rear

Quad camera
Triple camera

Main camera

48 MP (PDAF)
12 MP (OIS, PDAF)

Specifications

Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 1.8 μm

Second camera

12 MP (Ultra-wide)
64 MP (Telephoto, OIS, PDAF)

Specifications

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.0; Focal Length: 27 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera

5 MP (Macro)
12 MP (Ultra-wide, Autofocus)

Specifications

Aperture size: F2.4; Focal Length: 40 mm
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera

5 MP (Depth information)
 

Specifications

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
 

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features

Hyperlapse, EIS
OIS, HDR, Time-lapse video, Hyperlapse, Object tracking, EIS

Front

32 MP (HDR)
10 MP (PDAF, HDR)

Design

Dimensions

6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
6.36 x 2.96 x 0.33 inches (161.6 x 75.2 x 8.3 mm)

Weight

6.07 oz (172.0 g)
the average is 6.3 oz (179 g)
6.84 oz (194.0 g)
the average is 6.3 oz (179 g)

Materials

Back: Plastic; Frame: Plastic
Back: Plastic

Resistance

 
Water, Dust; IP 68

Biometrics

2D Face unlock, In-screen fingerprint
2D Face unlock, Ultrasonic in-screen fingerprint

Features

 
Stylus

Keys

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors

Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Mystic gray, Mystic bronze, Mystic green

Cellular

5G

 
n2, n5, n12, n25, n41, n66, n71, n260, n261, SA, NSA, Sub-6, mmWave

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3)

LTE (TDD)

Bands 38(2600), 39(1900+), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type

Nano SIM
Nano SIM

HD Voice

 
Yes

Multimedia

Headphones

3.5mm jack
No 3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features

Dolby Atmos
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.2

Features

Charging, OTG
Charging, Headphones port, OTG, Video out

Location

GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other

NFC, ANT+
NFC, ANT+

Hearing aid compatible

 
M3, T3

Regulatory Approval

FCC approval

 
 

Date approved

Nov 28, 2019
Jul 22, 2020

FCC ID value: A3LSMA515FN link
FCC ID value: A3LSMN981U link

Measured SAR

 
 

Head

0.89 W/kg
0.41 W/kg

Body

1.18 W/kg
0.92 W/kg

Simultaneous Transmission

1.56 W/kg
1.59 W/kg

Wireless Router

1.12 W/kg
1.22 W/kg

Phablet

2.76 W/kg
3.99 W/kg

Buyers information

Price

$ 400
$ 1000

User Manual

 
Download the Samsu​ng Galaxy Note 20 Manual as a PDF file.

In The Box

Download the Samsu​ng Galaxy A51 Manual as a PDF file.
Data Cable, Travel Adapter, Ejection Pin, Quick Start Guide

Availability

Officially announced

Dec 12, 2019
Aug 05, 2020
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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