Google Pixel 4a vs Samsung Galaxy A21
Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone specs comparison tool or pick a popular device from the ones below.
Display
Size
Resolution
Technology
OLED
IPS LCD
Screen-to-body
82.53 %
79.20 %
Features
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware
System chip
Qualcomm Snapdragon 730 SM7150-AA
Mediatek Helio P35
Processor
GPU
Adreno 618
PowerVR GE8320
RAM
Internal storage
128GB, not expandable
32GB (eMMC 5.1), available to use: 19.8 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
4000 mAh
Type
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging
USB Power Delivery
Fast charging
Max charge speed
Wired: 18.0W
Wired: 15.0W
Camera
Rear
Single camera
Quad camera
Main camera
Specifications
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 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
Weight
the average is 6.3 oz (179 g)
the average is 6.3 oz (179 g)
Materials
Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Plastic
Biometrics
Fingerprint (touch)
Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors
Just black
Black
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), 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), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
UMTS
850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data Speed
Dual SIM
Yes
SIM type
Nano SIM, eSIM
Nano SIM
HD Voice
Yes
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
Radio
FM
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, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Barometer
Accelerometer, Gyroscope, Compass
Other
NFC
NFC
Hearing aid compatible
M3, T4
M4, T3
Regulatory Approval
FCC approval
Date approved
Jun 25, 2020
Apr 17, 2020
Measured SAR
Head
1.18 W/kg
0.42 W/kg
Body
1.19 W/kg
1.27 W/kg
Simultaneous Transmission
1.59 W/kg
1.27 W/kg
Wireless Router
1.00 W/kg
1.27 W/kg
Buyers information
Price
$ 349
$ 250
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
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
Availability
Officially announced
Aug 03, 2020
Apr 08, 2020
