Samsung Galaxy A51 5G vs Xiaomi Redmi Note 9 Pro

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$500 VIEW ON amazon
$237 VIEW ON amazon

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,
395 PPI

Technology

Super AMOLED
IPS LCD

Screen-to-body

87.37 %
84.42 %

Features

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

Hardware

System chip

Samsung Exynos 980
Qualcomm Snapdragon 720G SM7125

Processor

Octa-core, 2200 MHz, ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm
Octa-core, 2300 MHz, Kryo 465, 64-bit, 8 nm

GPU

Mali-G76 MP5
Adreno 618

RAM

6GB LPDDR4
6GB LPDDR4

Internal storage

128GB, available to use: 105.3 GB
64GB (UFS 2.1)

Storage expansion

microSDXC up to 1000 GB
microSDXC up to 512 GB

Device type

Smartphone
Smartphone

OS

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

Battery

Capacity

4500 mAh
5020 mAh

Type

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

Battery life test results

 

Charging

Fast charging
Fast charging

Max charge speed

Wired: 25.0W
Wired: 30.0W

Camera

Rear

Quad camera
Quad camera

Main camera

48 MP (PDAF)
64 MP (PDAF)

Specifications

Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.9; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Second camera

12 MP (Ultra-wide)
8 MP (Ultra-wide)

Specifications

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera

5 MP (Macro)
5 MP (Macro, Autofocus)

Specifications

Aperture size: F2.4; Focal Length: 40 mm
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.12 μm

Fourth camera

5 MP (Depth information)
2 MP (Depth information)

Specifications

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)

Features

Hyperlapse, EIS
 

Front

32 MP (HDR)
16 MP (HDR, Slow-motion videos)

Design

Dimensions

6.26 x 2.90 x 0.34 inches (158.9 x 73.6 x 8.7 mm)
6.53 x 3.02 x 0.35 inches (165.8 x 76.7 x 8.8 mm)

Weight

6.60 oz (187.0 g)
the average is 6.3 oz (179 g)
7.37 oz (209.0 g)
the average is 6.3 oz (179 g)

Materials

Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass 5); Frame: Plastic

Biometrics

2D Face unlock, In-screen fingerprint
Fingerprint (touch)

Keys

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

Colors

Prism cube black
Interstellar gray, Tropical green, Glacier white

Cellular

5G

n41, n71, SA, NSA
 

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD)

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

UMTS

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

Data Speed

LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

 
Yes

SIM type

 
Nano SIM

HD Voice

Yes
Yes

VoLTE

 
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Dolby Atmos
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

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, dual-band; Wi-Fi Direct, Hotspot

USB

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

Features

Charging, OTG
Charging

Location

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

Sensors

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

Other

NFC, ANT+
NFC, Infrared

Hearing aid compatible

M3, T3
 

Regulatory Approval

FCC approval

 
 

Date approved

Jul 15, 2020
 

FCC ID value: A3LSMA516U link
 

Measured SAR

 
 

Head

1.18 W/kg
 

Body

1.20 W/kg
 

Simultaneous Transmission

3.25 W/kg
 

Wireless Router

1.37 W/kg
 

Buyers information

Price

$ 500
 

User Manual

Download the Samsu​ng Galaxy A51 5G Manual as a PDF file.
 

In The Box

A to C USB Cable, Wall Adapter, SIM Pin/Ejector, Quick Start Guide, Terms & Conditions
33W Power adapter, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced

Apr 08, 2020
Apr 30, 2020
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