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Samsung Galaxy M31s
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Phone Insight
Full Specifications October 28, 2026
Samsung Galaxy M31s Android 10
Samsung · 2020

Samsung Galaxy M31s

Samsung Galaxy M31s Android smartphone. Announced Jul 2020. Features 6.5″ display, Exynos 9611 chipset, 6000 mAh battery, 128 GB storage, 8 GB RAM, Corning Gorilla Glass 3.

Display 6.5"
Chipset Exynos 9611
RAM 6/8 GB
Storage 128GB storage, microSDXC
Camera 64 MP
Battery 6000 mAh
OS Android 10, up to Android 12, One UI 4.1
Build 203g, 9.3mm thickness

Launch

Announced 2020, July 30. Released 2020, August 06
Status Discontinued

Platform

OS Android 10, upgradable to Android 12, One UI 4.1
Chipset Exynos 9611 (10 nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Mali-G72 MP3

Display

Type Super AMOLED
Size 6.5 inches, 102.0 cm 2 (~86.1% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Protection Corning Gorilla Glass 3

Memory

Card slot microSDXC (dedicated slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM
memoryother UFS 2.1

Main Camera

Triple 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens
Features LED flash, panorama, HDR
Video 4K@30fps, 1080p@30fps, gyro-EIS

Selfie camera

Single 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Features HDR
Video 4K@30fps, 1080p@30fps

Body

Dimensions 159.3 x 74.4 x 9.3 mm (6.27 x 2.93 x 0.37 in)
Weight 203 g (7.16 oz)
SIM · Nano-SIM · Nano-SIM + Nano-SIM

Battery

Type Li-Po 6000 mAh
Charging 25W wired 4.5W reverse wired

Sound

Loudspeaker Yes
3.5mm jack Yes

Comms

WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS, GLONASS, GALILEO, BDS
NFC Yes (market/region dependent)
Radio FM radio, RDS, recording
USB USB Type-C 2.0, OTG

Network

Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE

Features

Sensors Fingerprint (side-mounted), accelerometer, gyro, compass
featuresother Virtual proximity sensing

Misc

Colors Mirage Black, Mirage Blue
Models SM-M317F, SM-M317F/DS
SAR 1.38 W/kg (head)
Phone Insight phoneinsight.org/ Printed October 28, 2026

For live pricing, photos, and comparisons, visit phoneinsight.org/phones/samsung-galaxy-m31s/

In depth

Full specifications

Announced 2020, July 30. Released 2020, August 06
Status Discontinued
OS Android 10, upgradable to Android 12, One UI 4.1
Chipset Exynos 9611 (10 nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Mali-G72 MP3
Type Super AMOLED
Size 6.5 inches, 102.0 cm 2 (~86.1% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Protection Corning Gorilla Glass 3
Card slot microSDXC (dedicated slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM
memoryother UFS 2.1
Triple 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens
Features LED flash, panorama, HDR
Video 4K@30fps, 1080p@30fps, gyro-EIS
Single 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Features HDR
Video 4K@30fps, 1080p@30fps
Dimensions 159.3 x 74.4 x 9.3 mm (6.27 x 2.93 x 0.37 in)
Weight 203 g (7.16 oz)
SIM · Nano-SIM · Nano-SIM + Nano-SIM
Type Li-Po 6000 mAh
Charging 25W wired 4.5W reverse wired
Loudspeaker Yes
3.5mm jack Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS, GLONASS, GALILEO, BDS
NFC Yes (market/region dependent)
Radio FM radio, RDS, recording
USB USB Type-C 2.0, OTG
Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE
Sensors Fingerprint (side-mounted), accelerometer, gyro, compass
featuresother Virtual proximity sensing
Colors Mirage Black, Mirage Blue
Models SM-M317F, SM-M317F/DS
SAR 1.38 W/kg (head)
Price About 300 EUR
PhoneInsight Benchmark
52.6/100
Mid-range

A specs-derived composite score, not a lab benchmark -- useful for ranking and comparison.

Processor 42.8
Display 69.2
Camera 75.9
Battery 81.8
0.7%Popularity rank
4,095,788 hitsTotal views
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