Display
Size:
6.5 inches
5.5 inches
Resolution:
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2160 x 1080 pixels, 18:9 ratio, 442 PPI
Technology:
Super AMOLED
P-OLED
Screen-to-body:
86.06 %
77.36 %
Features:
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:
Samsung Exynos 9611 (10 nm)
Qualcomm Snapdragon 845 SDM845 (10 nm)
Processor:
Octa-core, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit
Octa-core, 2500 MHz, Kryo 385, 64-bit
GPU:
Mali-G72 MP3
Adreno 630
RAM:
6GB LPDDR4
4GB LPDDR4
Internal storage:
128GB (UFS 2.1), available to use: 106.4 GB
64GB, not expandable
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (11, 10), Samsung One UI
Android (12, 11, 10, 9.0 Pie)
Battery
Capacity:
6000 mAh
2915 mAh
Type:
Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Fast charging, Reverse charging
USB Power Delivery, Qi wireless charging
Max charge speed:
Wired: 25.0W
Camera
Rear:
Quad camera
Single camera
Main camera:
64 MP (PDAF)
12.2 MP (OIS, PDAF, CMOS image sensor)
Specifications:
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 28 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
Flash:
LED
Dual LED
Video recording:
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
Hyperlapse, EIS
OIS, EIS, Video calling, Video sharing
Front:
32 MP
8 MP (Dual-Camera, Wide Angle, Autofocus)
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)
5.73 x 2.69 x 0.31 inches (145.6 x 68.2 x 7.9 mm)
Weight:
7.16 oz (203.0 g)
5.22 oz (148.0 g)
Materials:
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Resistance:
Water, Dust; IP68
Biometrics:
Fingerprint (touch)
Fingerprint (touch)
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Mirage black, Mirage blue
Black, Pink, White
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), 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), 32(1500 L-band), 66(AWS-3), 71(600)
4G (TDD):
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
3G:
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 2(1900), 5(850)
Data Speed:
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, UMTS
Dual SIM:
Yes
Yes
SIM type:
Nano SIM
Nano SIM, eSIM
HD Voice:
Yes
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
No 3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
Album art cover, Background playback
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), USB 3.1
Features:
Charging, OTG
Charging, Headphones port, Mass storage device
Location:
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Barometer
Other:
NFC
NFC, VoIP, Tethering, Computer sync, OTA sync
Hearing aid compatible:
M3, T3
Regulatory Approval
FCC approval:
Date approved:
Aug 31, 2018
FCC ID value:
A4RG013A
Measured SAR:
Head:
1.34 W/kg
Body:
1.34 W/kg
Simultaneous Transmission:
1.59 W/kg
Wireless Router:
1.34 W/kg
Buyers information
Price:
€ 310
$ 799
User Manual:
This is the official Samsung Galaxy M31s User Guide in English provided from the manufacturer.
In The Box:
Quick Switch Adapter, USB-C to USB-C cable, USB-C 18W Power adapter, Pixel USB-C earbuds, USB-C to 3.5mm headphone adapter, SIM tool, Quick Start Guide
Availability
Officially announced:
Jul 30, 2020
Oct 09, 2018
Expected Announcement:
Oct 09, 2018