Samsung Galaxy A42 vs Samsung Galaxy A12 vs Samsung Galaxy A21s

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.6 inches
6.5 inches
6.5 inches

Resolution:

1600 x 720 pixels, 20:9 ratio, 266 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

Super AMOLED
LCD
TFT

Screen-to-body:

84.26 %
85.80 %
82.94 %

Features:

60Hz refresh rate, Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 750G SM7225
Mediatek Helio P35 MT6765
Samsung Exynos 850

Processor:

Octa-core, 2200 MHz, Kryo 570, 64-bit, 8 nm
Octa-core, 2350 MHz, Cortex-A53, 64-bit, 12 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit

GPU:

Adreno 619
PowerVR GE8320
Mali-G76

RAM:

4GB LPDDR4
4GB LPDDR4
3GB LPDDR4

Internal storage:

128GB, available to use: 106 GB
64GB (eMMC 5.1), available to use: 48.2 GB
32GB (eMMC 5.1), available to use: 19.5 GB

Storage expansion:

microSDXC up to 1000 GB
microSDXC up to 1024 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

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

Battery

Capacity:

5000 mAh
5000 mAh
5000 mAh

Type:

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

Battery life test results:

Charging:

Samsung Adaptive Fast Charging
Samsung Adaptive Fast Charging
Fast charging

Max charge speed:

Wired: 15.0W
Wired: 15.0W

Camera

Rear:

Quad camera
Quad camera
Quad camera

Main camera:

48 MP (PDAF)
48 MP (Autofocus)
48 MP (PDAF)

Specifications:

Aperture size: F1.8; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)
5 MP (Ultra-wide)
8 MP (Ultra-wide)

Specifications:

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

Third camera:

5 MP (Macro)
2 MP (Macro)
2 MP (Macro)

Specifications:

Aperture size: F2.4
Aperture size: F2.4
Aperture size: F2.4

Fourth camera:

5 MP (Depth information)
2 MP (Depth information)
2 MP (Depth information)

Specifications:

Aperture size: F2.4
Aperture size: F2.4
Aperture size: F2.4

Video recording:

3840x2160 (4K UHD) (30 fps), 1280x720 (HD) (480 fps)
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Front:

20 MP (Autofocus)
8 MP
13 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.47 x 2.99 x 0.34 inches (164.4 x 75.9 x 8.6 mm)
6.46 x 2.98 x 0.35 inches (164 x 75.8 x 8.9 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)

Weight:

6.81 oz (193.0 g)
7.23 oz (205.0 g)
6.77 oz (192.0 g)

Materials:

Back: Plastic; Frame: Plastic

Biometrics:

In-screen fingerprint
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Keys:

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

Colors:

Prism Dot black, Prism Dot white, Prism Dot grey
Black, White, Blue, Red
Black, White, Blue, Red

Cellular

5G:

n1, n3, n5, n7, n8, n28, Sub-6

LTE (FDD):

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)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS:

Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(2100), 5(850), 8(900)
Bands 5(850), 8(900), 2(1900), 1(2100)

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE, 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:

Shared with microSD
Yes
Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Screen mirroring:

Wireless screen share
Wireless screen share, MirrorLink
Wireless screen share

Connectivity & Features

Bluetooth:

5.0
5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 b, g, n; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features:

Charging
Charging, Mass storage device
Charging

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
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
Accelerometer
Accelerometer, Gyroscope

Other:

NFC
NFC
NFC

Buyers information

Price:

€ 340
€ 179
€ 240

User Manual:

This is the official Samsu​ng Galaxy A42 User Guide in English provided from the manufacturer.
This is the official Samsu​ng Galaxy A21s User Guide in English provided from the manufacturer.

In The Box:

Power brick, USB cable, Headphones, Sim card extraction tool

Availability

Officially announced:

Sep 02, 2020
Nov 24, 2020
May 15, 2020
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