Samsung Galaxy S8 vs Samsung Galaxy M31s vs Samsung Galaxy S8+

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

Display

Size:

5.8 inches
6.5 inches
6.2 inches

Resolution:

2960 x 1440 pixels, 18.5:9 ratio, 570 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2960 x 1440 pixels, 18.5:9 ratio, 529 PPI

Technology:

Super AMOLED
Super AMOLED
Super AMOLED

Screen-to-body:

84.26 %
86.06 %
83.32 %

Features:

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

Qualcomm Snapdragon 835 MSM8998
Samsung Exynos 9611
Qualcomm Snapdragon 835 MSM8998

Processor:

Octa-core, 2350 MHz, Kryo 280, 64-bit, 10 nm
Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm
Octa-core, 2450 MHz, Kryo 280, 64-bit, 10 nm

GPU:

Adreno 540
Mali-G72 MP3
Adreno 540

RAM:

4GB LPDDR4
6GB LPDDR4
4GB LPDDR4

Internal storage:

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

Storage expansion:

microSDXC up to 256 GB
microSDXC up to 512 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI
Android (11, 10), Samsung One UI
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI

Battery

Capacity:

3000 mAh
6000 mAh
3500 mAh

Type:

Li - Ion, Not user replaceable
Not user replaceable
Li - Ion, Not user replaceable

Charging:

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

Max charge speed:

Wired: 25.0W

Camera

Rear:

Single camera
Quad camera
Single camera

Main camera:

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

Specifications:

Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.7; Focal length: 26 mm; 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

Video recording:

3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)

Features:

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

Front:

8 MP (Wide Angle, Autofocus, HDR)
32 MP
8 MP (Wide Angle, Autofocus, HDR)

Video capture:

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

Design

Dimensions:

5.86 x 2.68 x 0.31 inches (148.9 x 68.1 x 8.0 mm)
6.27 x 2.93 x 0.37 inches (159.3 x 74.4 x 9.3 mm)
6.28 x 2.89 x 0.32 inches (159.5 x 73.4 x 8.1 mm)

Weight:

5.47 oz (155.0 g)
7.16 oz (203.0 g)
6.10 oz (173.0 g)

Materials:

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

Resistance:

Water, Dust; IP68
Water, Dust; IP68

Biometrics:

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

Keys:

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

Colors:

Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink, Burgundy red
Mirage black, Mirage blue
Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 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)
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), 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)

LTE (TDD):

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

UMTS:

Bands 5(850), 8(900), 2(1900), 1(2100)
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 Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

32-Bit DAC, aptX-HD
Album art cover, Background playback

Screen mirroring:

DLNA, Wireless screen share, MHL
Wireless screen share
DLNA, Wireless screen share, MHL

Radio:

FM

Additional microphone(s):

for Noise cancellation, Video recording
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0, EDR
5.0
5.0, EDR

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
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 3.1
Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.1

Features:

Charging, Video out, Mass storage device
Charging, OTG
Charging, Mass storage device

Location:

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

Sensors:

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

Other:

NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync

Hearing aid compatible:

M3, T3
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Apr 06, 2017
Apr 06, 2017

FCC ID value:

A3LSMG950U link
A3LSMG955U link

Measured SAR:

Head:

0.49 W/kg
0.33 W/kg

Body:

0.48 W/kg
0.29 W/kg

Simultaneous Transmission:

1.53 W/kg
1.55 W/kg

Wireless Router:

0.46 W/kg
0.19 W/kg

Buyers information

Price:

€ 310

User Manual:

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

Availability

Officially announced:

Mar 29, 2017
Jul 30, 2020
Mar 29, 2017
FCC OKs Cingular\'s purchase of AT&T Wireless