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Samsung Galaxy A21 vs Samsung Galaxy A42 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.

Comparison mode:
Specs Size
Differences only
Samsung Galaxy A21
Samsung Galaxy A42
Samsung Galaxy A21 Samsung Galaxy A42
Released · Jun 29, 2020
Released · Nov 06, 2020
6.5-inch · 1600x720px
6.6-inch · 1600x720px
Quad camera
Quad camera
3GB · 32GB
4GB · 128GB
4000 mAh
5000 mAh

Design

Dimensions
6.61 x 3.02 x 0.32 inches
167.8 x 76.7 x 8.1 mm 		6.47 x 2.99 x 0.34 inches
164.4 x 75.9 x 8.6 mm
Weight
6.81 oz (193.0 g) 6.81 oz (193.0 g)
Materials
Back: Plastic
Frame: Plastic
Biometrics
Fingerprint (touch) Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Black Prism Dot black, Prism Dot white, Prism Dot grey

Display

Size
6.5-inch 6.6-inch
Resolution
1600x720px, 20:9 ratio, 270 PPI 1600x720px, 20:9 ratio, 266 PPI
Technology
IPS LCD Super AMOLED
Refresh rate
60Hz 60Hz
Screen-to-body
79.20 % 84.26 %
Features
Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Mediatek Helio P35 MT6765 (12 nm) Qualcomm Snapdragon 750G SM7225 (8 nm)
Processor
Octa-core
4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53 		Octa-core
2x 2.2GHz Kryo 570 + 6x 1.8GHz Kryo 570
GPU
PowerVR GE8320 Adreno 619
RAM
3GB (LPDDR4) 4GB (LPDDR4)
Internal storage
32GB (eMMC 5.1), available to use: 19.8 GB 128GB, available to use: 106 GB
Storage expansion
microSDXC up to 512 GB microSDXC up to 1000 GB
OS
Android (10), Samsung One UI Android (12, 11, 10), Samsung One UI

Battery

Capacity
4000 mAh 5000 mAh
Type
Li - Polymer
Charging
Fast charging Samsung Adaptive Fast Charging
Charge speed
Wired: 15.0W Wired: 15.0W

Camera

Rear
Quad camera Quad camera
Main camera
16 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3.06"
Pixel size: 1 μm 		48 MP (PDAF)
Aperture size: F1.8
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm 		8 MP (Ultra-wide)
Aperture size: F2.2
Third camera
2 MP (Macro)
Aperture size: F2.4 		5 MP (Macro)
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Aperture size: F2.4 		5 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
1920x1080 (Full HD) (30 fps) 3840x2160 (4K UHD) (30 fps), 1280x720 (HD) (480 fps)
Front
13 MP, Video capture: 1920x1080 (Full HD) 20 MP (Autofocus)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
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, USB 2.0 Type-C, USB 2.0
Hearing aid compatible
M4/T3
Location
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass Accelerometer, Gyroscope, Compass
Other
NFC NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM

Cellular

5G
Bands n1, n3, n5, n7, n8, n28, Sub-6
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), 66(AWS-3), 71(600) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 38(2600), 39(1900+), 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), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 6 (300/50 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: Apr 17, 2020
FCC ID value: ZCASMA215U 		Date approved: Apr 08, 2021
FCC ID value: A3LSMA426U
Measured SAR
Head: 0.42 W/kg
Body: 1.27 W/kg
Simultaneous Transmission: 1.27 W/kg
Wireless Router: 1.27 W/kg 		Head: 1.11 W/kg
Body: 1.25 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.06 W/kg
Phablet: 3.81 W/kg

Buyers information

MSRP
$ 250 € 340
In The Box
This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced
Apr 08, 2020 Sep 02, 2020

Alternative variants

for Verizon
4G (FDD) 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+)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
for Sprint
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD) Bands 41(2600+)
FCC OKs Cingular\'s purchase of AT&T Wireless