Google Pixel 3a vs Samsung Galaxy A51 5G

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$340 VIEW ON amazon
$500 VIEW ON amazon

Display

Size

5.6 inches
6.5 inches

Resolution

2220 x 1080 pixels, 18.5:9 ratio,
444 PPI
2400 x 1080 pixels, 20:9 ratio,
405 PPI

Technology

OLED
Super AMOLED

Screen-to-body

73.93 %
87.37 %

Features

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

Hardware

System chip

Qualcomm Snapdragon 670 SDM670
Samsung Exynos 980

Processor

Octa-core, 2000 MHz, Kryo 360, 64-bit, 10 nm
Octa-core, 2200 MHz, ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm

GPU

Adreno 615
Mali-G76 MP5

RAM

4GB LPDDR4
6GB LPDDR4

Internal storage

64GB (eMMC), not expandable
128GB, available to use: 105.3 GB

Storage expansion

 
microSDXC up to 1000 GB

Device type

Smartphone
Smartphone

OS

Android (11, 10, 9.0 Pie)
Android (10), Samsung One UI

Battery

Capacity

3000 mAh
4500 mAh

Type

Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results

 

Charging

USB Power Delivery
Fast charging

Max charge speed

 
Wired: 25.0W

Camera

Rear

Single camera
Quad camera

Main camera

12.2 MP (OIS, PDAF)
48 MP (PDAF)

Specifications

Aperture size: F1.8; Focal length: 28 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

 
12 MP (Ultra-wide)

Specifications

 
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera

 
5 MP (Macro)

Specifications

 
Aperture size: F2.4; Focal Length: 40 mm

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

Features

OIS, EIS, Video calling, Video sharing
Hyperlapse, EIS

Front

8 MP
32 MP (HDR)

Design

Dimensions

5.96 x 2.76 x 0.32 inches (151.3 x 70.1 x 8.2 mm)
6.26 x 2.90 x 0.34 inches (158.9 x 73.6 x 8.7 mm)

Weight

5.19 oz (147.0 g)
the average is 6.3 oz (179 g)
6.60 oz (187.0 g)
the average is 6.3 oz (179 g)

Materials

Back: Plastic
Back: Plastic; Frame: Plastic

Biometrics

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

Keys

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

Colors

Black, Purple, White
Prism cube black

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), 32(1500 L-band), 66(AWS-3)
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)

LTE (TDD)

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

UMTS

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

Data Speed

LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type

Nano SIM
 

HD Voice

Yes
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

aptX-HD
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; MIMO, 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, Mass storage device
Charging, OTG

Location

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

Sensors

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

Other

NFC, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+

Hearing aid compatible

M3, T3
M3, T3

Regulatory Approval

FCC approval

 
 

Date approved

Feb 25, 2019
Jul 15, 2020

FCC ID value: A4RG020G link
FCC ID value: A3LSMA516U link

Measured SAR

 
 

Head

1.15 W/kg
1.18 W/kg

Body

1.13 W/kg
1.20 W/kg

Simultaneous Transmission

1.59 W/kg
3.25 W/kg

Wireless Router

1.19 W/kg
1.37 W/kg

Buyers information

Price

$ 399
$ 500

User Manual

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

In The Box

18W USB-C power adapter, 1M USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool
A to C USB Cable, Wall Adapter, SIM Pin/Ejector, Quick Start Guide, Terms & Conditions

Availability

Officially announced

May 07, 2019
Apr 08, 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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