Samsung Galaxy A21 vs Samsung Galaxy A42 Specs Comparison

Availability

Officially announced
Apr 08, 2020	Sep 02, 2020
Prices (MSRP)
$250	€340

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, 79.20% screen-to-body	6.6-inch, 84.26% screen-to-body
Type
IPS LCD, 60Hz	Super AMOLED, 60Hz
Resolution
1600x720px, 20:9 ratio, 270 PPI	1600x720px, 20:9 ratio, 266 PPI

Hardware

System chip
Mediatek Helio P35 MT6765 (12 nm)	Snapdragon 750G SM7225 (8 nm)
Processor
Octa-core 4x2.3GHz Cortex-A53 4x1.8G​Hz Cortex-A53	Octa-core 2x2.2GHz Kryo 570 6x1.8GHz Kryo 570
GPU
PowerVR GE8320	Adreno 619
Memory
3GB (LPDDR4)/32GB (eMMC 5.1)	4GB (LPDDR4)/128GB
Storage expansion
microSDXC up to 512 GB	microSDXC up to 1000 GB
OS
Android (10)	Android (12, 11, 10)

Battery

Type
4000 mAh, Li - Polymer	5000 mAh
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
1080p (30 fps)	4K UHD (30 fps), 720p (480 fps)
Front
13 MP Video capture: 1080p	20 MP (Autofocus)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
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
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, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28
4G (TDD) Bands
38, 39, 40, 41	38, 40, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
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

Alternative variants

for Verizon

4G (FDD) Bands	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands	38, 40, 41
3G Bands	5, 8, 2, 1

for Sprint

4G (FDD) Bands	2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

Links

Full specifications
Samsung Galaxy A21 Specs	Samsung Galaxy A42 Specs
User Reviews
Samsung Galaxy A21 User Reviews