Display
Size:
6.5 inches
6.4 inches
Resolution:
2400 x 1080 pixels, 20:9 ratio, 405 PPI
1600 x 720 pixels, 20:9 ratio, 274 PPI
Technology:
Super AMOLED
Super AMOLED
Refresh rate:
90Hz
Screen-to-body:
86.06 %
84.30 %
Features:
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware
System chip:
Samsung Exynos 9611 (10 nm)
MediaTek Helio G80 MT6769T (12 nm)
Processor:
Octa-core, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit
Octa-core, 2x 2.0GHz Cortex-A75 + 6x 1.8GHz Cortex-A55, 64-bit
GPU:
Mali-G72 MP3
Mali G52 MC2
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 1024 GB
Device type:
Smartphone
Smartphone
OS:
Android (11, 10), Samsung One UI
Android (12, 11)
Battery
Capacity:
6000 mAh
Type:
Not user replaceable
Charging:
Fast charging, Reverse charging
Fast charging
Max charge speed:
Wired: 25.0W
Wired: 15.0W
Camera
Rear:
Quad camera
Quad camera
Main camera:
64 MP (PDAF)
48 MP (OIS, Autofocus)
Specifications:
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.8
Second camera:
12 MP (Ultra-wide)
8 MP (Ultra-wide)
Specifications:
Aperture size: F2.2
Aperture size: F2.2
Third camera:
5 MP (Macro)
2 MP (Depth information)
Specifications:
Aperture size: F2.4
Aperture size: F2.4
Fourth camera:
5 MP (Depth information)
2 MP (Macro)
Specifications:
Aperture size: F2.4
Aperture size: F2.4
Flash:
LED
LED
Video recording:
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
1920x1080 (Full HD)
Features:
Hyperlapse, EIS
OIS
Front:
32 MP
13 MP
Video capture:
3840x2160 (4K UHD) (30 fps)
Design
Dimensions:
6.27 x 2.93 x 0.37 inches (159.3 x 74.4 x 9.3 mm)
6.27 x 2.90 x 0.33 inches (159.3 x 73.6 x 8.4 mm)
Weight:
7.16 oz (203.0 g)
6.56 oz (186.0 g)
Materials:
Back: Plastic; Frame: Plastic
Biometrics:
Fingerprint (touch)
Fingerprint (touch)
Keys:
Right: Volume control, Lock/Unlock key
Colors:
Mirage black, Mirage blue
Black, White, Mint, Violet
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)
4G (TDD):
Bands 38(2600), 40(2300), 41(2600+)
3G:
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(2100), 2(1900), 5(850), 8(900), 9(1700)
Data Speed:
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s
Dual SIM:
Yes
Yes
SIM type:
Nano SIM
Nano SIM
Multimedia
Headphones:
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
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; Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 2.0
Type-C (reversible)
Features:
Charging, OTG
Charging
Location:
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass
Other:
NFC
NFC
Buyers information
Price:
€ 310
User Manual:
This is the official Samsung Galaxy M31s User Guide in English provided from the manufacturer.
Availability
Officially announced:
Jul 30, 2020
Jun 03, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless