Samsung Galaxy M30 vs Samsung Galaxy A51 vs Samsung Galaxy A42 - specs comparison

Display

Size:

6.4 inches

6.5 inches

6.6 inches

Resolution:

2280 x 1080 pixels, 19.5:9 ratio, 395 PPI

2400 x 1080 pixels, 20:9 ratio, 405 PPI

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

Technology:

Super AMOLED

Screen-to-body:

86.66 %

87.37 %

84.26 %

Colors:

16 777 216

Features:

Proximity sensor

60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

60Hz refresh rate, Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7 Octa 7904

Samsung Exynos 9611

Qualcomm Snapdragon 750G SM7225

Processor:

Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

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

GPU:

Mali-G71 MP2

Mali-G72 MP3

Adreno 619

RAM:

6GB LPDDR4

4GB LPDDR4

Internal storage:

128GB, available to use: 107.6 GB

128GB, available to use: 105.9 GB

128GB, available to use: 106 GB

Storage expansion:

microSDXC up to 512 GB

microSDXC up to 1000 GB

Device type:

Smartphone

OS:

Android (9.0 Pie, 8.1 Oreo), Samsung One UI

Android (11, 10), Samsung One UI

Android (10), Samsung One UI

Battery

Capacity:

5000 mAh

4000 mAh

5000 mAh

Type:

Not user replaceable

Li - Polymer, Not user replaceable

Not user replaceable

Battery life test results:

link

Charging:

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging

Fast charging

Samsung Adaptive Fast Charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Triple camera

Quad camera

Main camera:

13 MP (PDAF)

48 MP (PDAF)

Specifications:

F1.9; 27 mm; 1/3.1"; 1.12 μm

F2.0; 26 mm; 1/2"; 0.8 μm

F1.8; 0.8 μm

Second camera:

5 MP (Ultra-wide)

12 MP (Ultra-wide)

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Aperture size: F2.2

Third camera:

5 MP (Depth information)

5 MP (Macro)

Specifications:

Aperture size: F2.2

Aperture size: F2.4; Focal Length: 40 mm

Aperture size: F2.4

Fourth camera:

5 MP (Depth information)

Specifications:

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Aperture size: F2.4

Video recording:

1920x1080 (Full HD) (30 fps)

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

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

Features:

Video calling, Video sharing

Hyperlapse, EIS

Front:

16 MP

32 MP (HDR)

20 MP (Autofocus)

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.26 x 2.96 x 0.33 inches (159 x 75.1 x 8.5 mm)

6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

6.47 x 2.99 x 0.34 inches (164.4 x 75.9 x 8.6 mm)

Weight:

6.14 oz (174.0 g)

6.07 oz (172.0 g)

6.81 oz (193.0 g)

Materials:

Back: Plastic

Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, Fingerprint (touch)

2D Face unlock, In-screen fingerprint

In-screen fingerprint

Features:

Soft keys

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Black, Blue

Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Prism Dot black, Prism Dot white, Prism Dot grey

Cellular

5G:

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

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 8(900), 20(800 DD)

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), 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), 17(700 b), 20(800 DD), 28(700 APT)

LTE (TDD):

Bands 40(2300), 41(2600+)

Bands 38(2600), 39(1900+), 41(2600+)

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

UMTS:

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

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

Data Speed:

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

Dual SIM:

Yes

Shared with microSD

SIM type:

Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack

Speakers:

Earpiece, Loudspeaker

Features:

Album art cover, Background playback, Dolby Atmos

Dolby Atmos

Screen mirroring:

Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0

Wi-Fi:

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

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

USB:

Type-C (reversible), USB 2.0

Features:

Mass storage device, Charging

Charging, OTG

Charging

Location:

GPS, A-GPS, Glonass, BeiDou

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

Sensors:

Accelerometer, Gyroscope, Compass

Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Accelerometer, Gyroscope, Compass

Other:

VoIP, Tethering, Computer sync, OTA sync

NFC, ANT+

NFC

Phone features

Notifications:

Haptic feedback, Music ringtones, Vibration

Other features:

Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval:

Date approved:

Feb 13, 2019

Nov 28, 2019

FCC ID value:

A3LSMM305F link

A3LSMA515FN link

Measured SAR:

Head:

0.28 W/kg

0.89 W/kg

Body:

0.39 W/kg

1.18 W/kg

Simultaneous Transmission:

1.24 W/kg

1.56 W/kg

Wireless Router:

0.93 W/kg

1.12 W/kg

Phablet:

2.76 W/kg

Buyers information

Price:

$ 400

€ 340

User Manual:

This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.

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

Availability

Officially announced:

Feb 27, 2019

Dec 12, 2019

Sep 02, 2020