Google Pixel 3a vs Samsung Galaxy A21s Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

9.0	7.5
Google Pixel 3a	Samsung Galaxy A21s
Released · May 07, 2019	Released · Jun 19, 2020
5.6-inch · 2220x1080px	6.5-inch · 1600x720px
Single camera	Quad camera
4GB · 64GB	3GB · 32GB
3000 mAh	5000 mAh

Design

Dimensions
5.96 x 2.76 x 0.32 inches 151.3 x 70.1 x 8.2 mm	6.44 x 2.96 x 0.35 inches 163.7 x 75.3 x 8.9 mm
Weight
5.19 oz (147.0 g)	6.77 oz (192.0 g)
Materials
Back: Plastic
Biometrics
Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Purple, White	Black, White, Blue, Red

Display

Size
5.6-inch	6.5-inch
Resolution
2220x1080px, 18.5:9 ratio, 444 PPI	1600x720px, 20:9 ratio, 270 PPI
Technology
OLED	TFT
Screen-to-body
73.93 %	82.94 %
Features
Scratch-resistant glass (Dragontrail), Ambient light sensor, Proximity sensor	Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 670 SDM670 (10 nm)	Samsung Exynos 850
Processor
Octa-core 2000 MHz Kryo 360	Octa-core 8x 2.0GHz Cortex-A55
GPU
Adreno 615	Mali-G76
RAM
4GB (LPDDR4)	3GB (LPDDR4)
Internal storage
64GB (eMMC)	32GB (eMMC 5.1), available to use: 19.5 GB
Storage expansion
not expandable	microSDXC up to 512 GB
OS
Android (12, 11, 10, 9.0 Pie)	Android (10), Samsung One UI

Battery

Capacity
3000 mAh	5000 mAh
Type
	Li - Polymer
Charging
USB Power Delivery	Fast charging

Battery Life Estimate

Untested

Browsing

9h 48min

Video

6h 30min

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

11h 9min

Gaming

7h 48min

Camera

Rear
Single camera	Quad camera
Main camera
12.2 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 28 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	2 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information) Aperture size: F2.4
Flash
Dual LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps) EIS	1920x1080 (Full HD) (30 fps)
Front
8 MP, Video capture: 1920x1080 (Full HD)	13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
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, USB 2.0	Type-C, USB 2.0
Hearing aid compatible
M3/T3
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, VoIP, Tethering, Computer sync, OTA sync	NFC

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker
Features
aptX-HD
Screen mirroring
Wireless screen share	Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

4G (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), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)	Bands 1(2100), 2(1900), 5(850), 8(900)
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
SIM type
Nano SIM	Nano SIM
HD Voice
Yes

Regulatory Approval

FCC approval
Date approved: Feb 25, 2019 FCC ID value: A4RG020G
Measured SAR
Head: 1.15 W/kg Body: 1.13 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.19 W/kg

Buyers information

MSRP
$ 399	€ 240
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

Availability

Officially announced
May 07, 2019	May 15, 2020

Alternative variants


4G (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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)

with 4GB RAM


RAM	4GB
Internal storage	64GB

with 6GB RAM


RAM	6GB
Internal storage	64GB

Links

Full specifications
Google Pixel 3a Specs	Samsung Galaxy A21s Specs
PhoneArena Review
Google Pixel 3a Review	Samsung Galaxy A21s Review
User Reviews
Google Pixel 3a User Reviews