Google Pixel 4a vs Samsung Galaxy A21s

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$350 VIEW ON amazon
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Display

Size

5.8 inches
6.5 inches

Resolution

2340 x 1080 pixels, 19.5:9 ratio,
444 PPI
1600 x 720 pixels, 20:9 ratio,
270 PPI

Technology

OLED
TFT

Screen-to-body

82.53 %
82.94 %

Features

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

Hardware

System chip

Qualcomm Snapdragon 730 SM7150-AA
Samsung Exynos 850

Processor

Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit

GPU

Adreno 618
Mali-G76

RAM

6GB LPDDR4
3GB LPDDR4

Internal storage

128GB, not expandable
32GB (eMMC 5.1), available to use: 19.5 GB

Storage expansion

 
microSDXC up to 512 GB

Device type

Smartphone
Smartphone

OS

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

Battery

Capacity

3140 mAh
5000 mAh

Type

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

Battery life test results

Charging

USB Power Delivery
Fast charging

Max charge speed

Wired: 18.0W
 

Camera

Rear

Single camera
Quad camera

Main camera

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

Specifications

Aperture size: F1.7; Focal length: 27 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

 
8 MP (Ultra-wide)

Specifications

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

Third camera

 
2 MP (Macro)

Specifications

 
Aperture size: F2.4

Fourth camera

 
2 MP (Depth information)

Specifications

 
Aperture size: F2.4

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
1920x1080 (Full HD) (30 fps)

Features

EIS
 

Front

8 MP
13 MP

Design

Dimensions

5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)

Weight

5.04 oz (143.0 g)
the average is 6.3 oz (179 g)
6.77 oz (192.0 g)
the average is 6.3 oz (179 g)

Materials

Back: Plastic; Frame: Plastic
 

Biometrics

Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Keys

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

Colors

Just black
Black, White, Blue, Red

Cellular

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), 17(700 b), 18(800 Lower), 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), 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, 900, 1700/2100, 1900, 2100 MHz
850, 900, 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, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Nano SIM, eSIM
Nano SIM

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

aptX, aptX-HD
 

Screen mirroring

Wireless screen share
Wireless screen share

Additional microphone(s)

for Noise cancellation
 

Connectivity & Features

Bluetooth

5.1
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 3.1
Type-C (reversible), USB 2.0

Features

Charging
Charging

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

Other

NFC
NFC

Hearing aid compatible

M3, T4
 

Regulatory Approval

FCC approval

 
 

Date approved

Jun 25, 2020
 

FCC ID value: A4RG025J link
 

Measured SAR

 
 

Head

1.18 W/kg
 

Body

1.19 W/kg
 

Simultaneous Transmission

1.59 W/kg
 

Wireless Router

1.00 W/kg
 

Buyers information

Price

$ 349
€ 240

User Manual

 
Download the Samsu​ng Galaxy A21s Manual as a PDF file.

In The Box

18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool
 

Availability

Officially announced

Aug 03, 2020
May 15, 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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