Samsung Galaxy M31s vs Samsung Galaxy S9 Specs Comparison

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

Display

Size:

6.5 inches
5.8 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 405 PPI
2960 x 1440 pixels, 18.5:9 ratio, 568 PPI

Technology:

Super AMOLED
Super AMOLED

Screen-to-body:

86.06 %
84.36 %

Features:

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 9611 (10 nm)
Qualcomm Snapdragon 845 SDM845 (10 nm)

Processor:

Octa-core, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit
Octa-core, 2800 MHz, Kryo 385, 64-bit

GPU:

Mali-G72 MP3
Adreno 630

RAM:

6GB LPDDR4
4GB LPDDR4

Internal storage:

128GB (UFS 2.1), available to use: 106.4 GB
64GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 400 GB

Device type:

Smartphone
Smartphone

OS:

Android (11, 10), Samsung One UI
Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI

Battery

Capacity:

6000 mAh
3000 mAh

Type:

Not user replaceable
Li - Ion, Not user replaceable

Charging:

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

Max charge speed:

Wired: 25.0W

Camera

Rear:

Quad camera
Single camera

Main camera:

64 MP (PDAF)
12 MP (OIS, PDAF)

Specifications:

Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Second camera:

12 MP (Ultra-wide)

Specifications:

Aperture size: F2.2

Third camera:

5 MP (Macro)

Specifications:

Aperture size: F2.4

Fourth camera:

5 MP (Depth information)

Specifications:

Aperture size: F2.4

Flash:

LED
LED

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

Hyperlapse, EIS
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing

Front:

32 MP
8 MP (Autofocus, HDR)

Video capture:

3840x2160 (4K UHD) (30 fps)
2560x1440 (QHD) (30 fps)

Design

Dimensions:

6.27 x 2.93 x 0.37 inches (159.3 x 74.4 x 9.3 mm)
5.81 x 2.70 x 0.33 inches (147.7 x 68.7 x 8.5 mm)

Weight:

7.16 oz (203.0 g)
5.75 oz (163.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

Fingerprint (touch)
Iris scanner, 2D Face unlock, Fingerprint (touch)

Features:

Notification light

Keys:

Right: Volume control, Lock/Unlock key
Left: Volume control, Other; Right: Lock/Unlock key

Colors:

Mirage black, Mirage blue
Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue

Cellular

4G (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), 26(850+), 28(700 APT), 66(AWS-3)
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), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)

4G (TDD):

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

3G:

Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
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
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

32-Bit DAC, aptX-HD

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM
FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0

Wi-Fi:

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

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.1

Features:

Charging, OTG
Charging, OTG, Video out

Location:

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

Sensors:

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

Other:

NFC
NFC, ANT+

Regulatory Approval

FCC approval:

Date approved:

Jan 11, 2018

FCC ID value:

A3LSMG960U

Measured SAR:

Head:

0.35 W/kg

Body:

0.96 W/kg

Simultaneous Transmission:

1.59 W/kg

Wireless Router:

0.95 W/kg

Buyers information

Price:

€ 310
$ 720

User Manual:

This is the official Samsu​ng Galaxy M31s User Guide in English provided from the manufacturer.

Availability

Officially announced:

Jul 30, 2020
Feb 25, 2018
FCC OKs Cingular\'s purchase of AT&T Wireless