Samsung Galaxy A42 vs Samsung Galaxy A12 vs Samsung Galaxy S21 - specs comparison

Display

Size:

6.6 inches

6.5 inches

6.2 inches

Resolution:

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

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

2400 x 1080 pixels, 20:9 ratio, 424 PPI

Technology:

Super AMOLED

LCD

Dynamic AMOLED

Screen-to-body:

84.26 %

85.80 %

86.06 %

Peak brightness:

1300 cd/m2 (nit)

Features:

60Hz refresh rate, Ambient light sensor, Proximity sensor

Ambient light sensor, Proximity sensor

120Hz refresh rate (adaptive), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 750G SM7225

Mediatek Helio P35 MT6765

Qualcomm Snapdragon 888

Processor:

Octa-core, 2200 MHz, Kryo 570, 64-bit, 8 nm

Octa-core, 2350 MHz, Cortex-A53, 64-bit, 12 nm

Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 619

PowerVR GE8320

Adreno 660

RAM:

4GB LPDDR4

8GB LPDDR5

Internal storage:

128GB, available to use: 106 GB

64GB (eMMC 5.1), available to use: 48.2 GB

128GB (UFS 3.0), not expandable

Storage expansion:

microSDXC up to 1000 GB

microSDXC up to 1024 GB

Device type:

Smartphone

OS:

Android (11, 10), Samsung One UI

Android (10), Samsung One UI UI

Android (11), Samsung One UI

Battery

Capacity:

5000 mAh

4000 mAh

Type:

Not user replaceable

Li - Polymer, Not user replaceable

Charging:

Samsung Adaptive Fast Charging

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 15.0W

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Quad camera

Triple camera

Main camera:

48 MP (PDAF)

48 MP (Autofocus)

12 MP (OIS, PDAF)

Specifications:

F1.8; 0.8 μm

F2.0; 26 mm

F1.8; 26 mm; 1/1.76"; 1.8 μm

Second camera:

8 MP (Ultra-wide)

5 MP (Ultra-wide)

64 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F2.2

Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera:

5 MP (Macro)

2 MP (Macro)

12 MP (Ultra-wide, Autofocus)

Specifications:

Aperture size: F2.4

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera:

5 MP (Depth information)

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Video recording:

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

1920x1080 (Full HD) (30 fps)

7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS

Front:

20 MP (Autofocus)

8 MP

10 MP (PDAF, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)

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)

5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)

Weight:

6.81 oz (193.0 g)

7.23 oz (205.0 g)

6.03 oz (171.0 g)

Materials:

Back: Plastic; Frame: Plastic

Back: Plastic; Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

In-screen fingerprint

Fingerprint (touch)

2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Prism Dot black, Prism Dot white, Prism Dot grey

Black, White, Blue, Red

Phantom pink, Violet, Gray, White

Cellular

5G:

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

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

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), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD):

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

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

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

Bands 5(850), 8(900), 1(2100)

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

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, UMTS

Dual SIM:

Shared with microSD

Yes

SIM type:

Nano SIM

Multimedia

Headphones:

3.5mm jack

No 3.5mm jack

Speakers:

Earpiece, Loudspeaker

Earpiece, Multiple speakers

Features:

32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share

Wireless screen share, MirrorLink

Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

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, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0

Type-C (reversible), USB 3.2

Features:

Charging

Charging, Mass storage device

Charging, Headphones port, OTG, Video out

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, Compass, Hall (for flip covers), Barometer

Other:

NFC

NFC, ANT+

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 08, 2020

FCC ID value:

A3LSMG991U link

Measured SAR:

Head:

0.36 W/kg

Body:

1.08 W/kg

Simultaneous Transmission:

3.96 W/kg

Wireless Router:

1.09 W/kg

Phablet:

2.49 W/kg

Buyers information

Price:

€ 340

€ 179

$ 800

User Manual:

This is the official Samsung Galaxy A42 User Guide in English provided from the manufacturer.

In The Box:

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

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Sep 02, 2020

Nov 24, 2020

Jan 14, 2021