Display
Size:
6.5 inches
6.4 inches
Resolution:
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2280 x 1080 pixels, 19.5:9 ratio, 395 PPI
Technology:
Super AMOLED
Super AMOLED
Screen-to-body:
86.06 %
86.66 %
Features:
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Proximity sensor
Hardware
System chip:
Samsung Exynos 9611 (10 nm)
Samsung Exynos 7 Octa 7904 (14 nm)
Processor:
Octa-core, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit
GPU:
Mali-G72 MP3
Mali-G71 MP2
RAM:
6GB LPDDR4
6GB LPDDR4
Internal storage:
128GB (UFS 2.1), available to use: 106.4 GB
128GB, available to use: 107.6 GB
Storage expansion:
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (11, 10), Samsung One UI
Android (9.0 Pie, 8.1 Oreo), Samsung One UI
Battery
Capacity:
6000 mAh
5000 mAh
Type:
Not user replaceable
Not user replaceable
Charging:
Fast charging, Reverse charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging
Max charge speed:
Wired: 25.0W
Camera
Rear:
Quad camera
Triple camera
Main camera:
64 MP (PDAF)
13 MP (PDAF)
Specifications:
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm
Second camera:
12 MP (Ultra-wide)
5 MP (Ultra-wide)
Specifications:
Aperture size: F2.2
Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Third camera:
5 MP (Macro)
5 MP (Depth information)
Specifications:
Aperture size: F2.4
Aperture size: F2.2
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)
1920x1080 (Full HD) (30 fps)
Features:
Hyperlapse, EIS
Video calling, Video sharing
Front:
32 MP
16 MP
Video capture:
3840x2160 (4K UHD) (30 fps)
1920x1080 (Full HD)
Design
Dimensions:
6.27 x 2.93 x 0.37 inches (159.3 x 74.4 x 9.3 mm)
6.26 x 2.96 x 0.33 inches (159 x 75.1 x 8.5 mm)
Weight:
7.16 oz (203.0 g)
6.14 oz (174.0 g)
Materials:
Back: Plastic
Biometrics:
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Features:
Soft keys
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Mirage black, Mirage blue
Black, 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), 3(1800), 5(850), 8(900), 20(800 DD)
4G (TDD):
Bands 38(2600), 40(2300), 41(2600+)
Bands 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)
Data Speed:
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM:
Yes
Yes
SIM type:
Nano SIM
Nano SIM
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Dolby Atmos, Album art cover, Background playback
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; Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features:
Charging, OTG
Charging, Mass storage device
Location:
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, BeiDou
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass
Other:
NFC
VoIP, Tethering, Computer sync, OTA sync
Regulatory Approval
FCC approval:
Date approved:
Feb 13, 2019
FCC ID value:
A3LSMM305F
Measured SAR:
Head:
0.28 W/kg
Body:
0.39 W/kg
Simultaneous Transmission:
1.24 W/kg
Wireless Router:
0.93 W/kg
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
Feb 27, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless