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Samsung Galaxy M31
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Phone Insight
Full Specifications September 3, 2026
Samsung Galaxy M31 Android 10
Samsung · 2020

Samsung Galaxy M31

Samsung Galaxy M31 Android smartphone. Announced Feb 2020. Features 6.4″ display, Exynos 9611 chipset, 6000 mAh battery, 128 GB storage, 8 GB RAM, Corning Gorilla Glass 3.

Display 6.4"
Chipset Exynos 9611
RAM 6/8 GB
Storage 64GB/128GB storage, microSDXC
Camera 64 MP
Battery 6000 mAh
OS Android 10, up to Android 12, One UI 4.1
Build 191g, 8.9mm thickness

Launch

Announced 2020, February 25. Released 2020, March 05
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, 420 nits (peak)
Size 6.4 inches, 100.5 cm 2 (~84.1% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection Corning Gorilla Glass 3

Memory

Card slot microSDXC (dedicated slot)
Internal 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
memoryother UFS 2.1

Main Camera

Triple 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens
Features LED flash, panorama, HDR
Video 4K@30fps, 1080p@30fps, gyro-EIS

Selfie camera

Single 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Features HDR
Video 4K@30fps, 1080p@30fps

Body

Dimensions 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)
Weight 191 g (6.74 oz)
Build Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM Nano-SIM + Nano-SIM

Battery

Type Li-Po 6000 mAh
Charging 15W 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

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, 13, 17, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE

Features

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

Misc

Colors Ocean Blue, Space Black, Red
Models SM-M315F, SM-M315F/DS, SM-M315F/DSN
SAR 0.52 W/kg (head)     0.69 W/kg (body)
SAR EU 0.48 W/kg (head)     1.13 W/kg (body)
Phone Insight phoneinsight.org/ Printed September 3, 2026

For live pricing, photos, and comparisons, visit phoneinsight.org/phones/samsung-galaxy-m31/

In depth

Full specifications

Announced 2020, February 25. Released 2020, March 05
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, 420 nits (peak)
Size 6.4 inches, 100.5 cm 2 (~84.1% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection Corning Gorilla Glass 3
Card slot microSDXC (dedicated slot)
Internal 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
memoryother UFS 2.1
Triple 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens
Features LED flash, panorama, HDR
Video 4K@30fps, 1080p@30fps, gyro-EIS
Single 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Features HDR
Video 4K@30fps, 1080p@30fps
Dimensions 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)
Weight 191 g (6.74 oz)
Build Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM Nano-SIM + Nano-SIM
Type Li-Po 6000 mAh
Charging 15W 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
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, 13, 17, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE
Sensors Fingerprint (rear-mounted), accelerometer, gyro, compass
featuresother Virtual proximity sensing
Colors Ocean Blue, Space Black, Red
Models SM-M315F, SM-M315F/DS, SM-M315F/DSN
SAR 0.52 W/kg (head)     0.69 W/kg (body)
SAR EU 0.48 W/kg (head)     1.13 W/kg (body)
Price About 310 EUR
PhoneInsight Benchmark
52.1/100
Mid-range

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

Processor 42.8
Display 69
Camera 75.9
Battery 77
2.4%Popularity rank
9,443,019 hitsTotal views
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