Samsung Galaxy M30s vs Samsung Galaxy A31

Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone comparison tool or pick a popular device from the ones below.

$249 VIEW ON AMAZON

Display

Size

6.4 inches
6.4 inches

Resolution

2340 x 1080 pixels, 19.5:9 ratio,
403 PPI
2400 x 1080 pixels, 20:9 ratio,
411 PPI

Technology

Super AMOLED
Super AMOLED

Screen-to-body

84.11 %
84.88 %

Features

Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware & Performance

System chip

Samsung Exynos 9611
MediaTek Helio P65 MT6768

Processor

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
Octa-core, 2000 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm

GPU

Mali-G72 MP3
Mali-G52 MC2

RAM

4GB LPDDR4
4GB LPDDR4

Internal storage

64GB
64GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 512 GB

OS

Android (9.0 Pie), Samsung One UI
Android (10), Samsung One UI

Battery

Capacity

6000 mAh
5000 mAh

Type

Not user replaceable
Not user replaceable

Charging

Fast charging
Fast charging

Camera

Rear

Triple camera
Quad camera

Main camera

48 MP (PDAF)
48 MP (PDAF)

Specifications

Aperture size: F2.0; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F2.0; Pixel size: 0.8 μm

Second camera

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

Specifications

Aperture size: F2.2; Focal Length: 12 mm
Aperture size: F2.2

Third camera

5 MP (Depth information)
5 MP (Macro)

Specifications

Aperture size: F2.2
Aperture size: F2.4

Fourth camera

 
5 MP (Depth information)

Specifications

 
Aperture size: F2.4

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
1920x1080 (Full HD)

Features

EIS
 

Front

16 MP (HDR)
20 MP

Design

Dimensions

6.26 x 2.96 x 0.35 inches (159 x 75.1 x 8.9 mm)
6.27 x 2.88 x 0.34 inches (159.3 x 73.1 x 8.6 mm)

Weight

6.63 oz (188 g)
the average is 6.5 oz (184 g)
6.53 oz (185 g)
the average is 6.5 oz (184 g)

Materials

Back: Plastic
Back: Plastic

Biometrics

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

Colors

Black, Blue, White
Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white

Cellular

LTE (FDD)

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
 

LTE (TDD)

Bands 38(2600), 40(2300), 41(2600+)
 

UMTS

850, 900, 1900, 2100 MHz
 

Data Speed

LTE-A, 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
Yes

SIM type

Nano SIM
Nano SIM

Multimedia

Headphones

3.5mm jack
 

Features

Dolby Atmos
 

Connectivity & Features

Bluetooth

5.0
Yes

Wi-Fi

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

Features

Charging
Charging

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other

NFC
 
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
FCC OKs Cingular's purchase of AT&T Wireless