Display
Size:
5.8 inches
6.5 inches
Resolution:
2436 x 1125 pixels, 19.5:9 ratio, 459 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
OLED
Super AMOLED
Screen-to-body:
82.35 %
86.06 %
Peak brightness:
625 cd/m2 (nit)
Features:
HDR support, Pressure-sensitive, Oleophobic coating, Scratch-resistant glass, Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Hardware
System chip:
Apple A11 Bionic APL1W72
Samsung Exynos 9611
Processor:
Hexa-core, 2390 MHz, Monsoon and Mistral, 64-bit, 10 nm
Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm
GPU:
Apple 3-core GPU
Mali-G72 MP3
RAM:
3GB LPDDR4
6GB LPDDR4
Internal storage:
256GB, not expandable
128GB (UFS 2.1), available to use: 106.4 GB
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
iOS (14.x, 13.x, 12.x, 11.x)
Android (11, 10), Samsung One UI
Battery
Capacity:
2716 mAh
6000 mAh
Type:
Li - Ion, Not user replaceable
Not user replaceable
Charging:
USB Power Delivery, Qi wireless charging
Fast charging, Reverse charging
Max charge speed:
Wired: 15.0W; Wireless: 7.5W
Wired: 25.0W
Camera
Rear:
Dual camera
Quad camera
Main camera:
12 MP (Sapphire crystal lens cover, OIS, PDAF, CMOS image sensor, BSI sensor)
64 MP (PDAF)
Specifications:
Aperture size: F1.8; Focal length: 28 mm; Sensor size: 1/3"; Pixel size: 1.22 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Second camera:
12 MP (Telephoto, Sapphire crystal lens cover, OIS, PDAF, CMOS image sensor, BSI sensor)
12 MP (Ultra-wide)
Specifications:
Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
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
Video recording:
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
Features:
OIS, Time-lapse video, Continuous autofocus, Video light, Video calling, Video sharing
Hyperlapse, EIS
Front:
7 MP (HDR)
32 MP
Video capture:
1920x1080 (Full HD)
3840x2160 (4K UHD) (30 fps)
Design
Dimensions:
5.65 x 2.79 x 0.30 inches (143.6 x 70.9 x 7.7 mm)
6.27 x 2.93 x 0.37 inches (159.3 x 74.4 x 9.3 mm)
Weight:
6.14 oz (174.0 g)
7.16 oz (203.0 g)
Materials:
Back: Glass; Frame: Stainless steel
Resistance:
Water, Dust; IP67
Biometrics:
3D Face unlock
Fingerprint (touch)
Keys:
Left: Volume control, Other; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Silver, Space gray
Mirage black, Mirage blue
Cellular
LTE (FDD):
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), 30(2300 WCS), 66(AWS-3)
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)
LTE (TDD):
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
UMTS:
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed:
LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM:
Yes
SIM type:
Nano SIM
Nano SIM
VoLTE:
Yes
Multimedia
Headphones:
No 3.5mm jack
3.5mm jack
Speakers:
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
Additional microphone(s):
for Noise cancellation, Video recording
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB:
Lightning
Type-C (reversible), USB 2.0
Features:
Charging, Headphones port
Charging, OTG
Location:
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Barometer
Accelerometer, Gyroscope, Compass
Other:
NFC, UMA (Wi-Fi Calling)
NFC
Hearing aid compatible:
M3, T4
Buyers information
Price:
$ 1149
€ 310
User Manual:
This is the official Samsung Galaxy M31s User Guide in English provided from the manufacturer.
In The Box:
EarPods with Lightning Connector, Lightning to 3.5 mm Headphone Jack Adapter, Lightning to USB Cable, USB Power Adapter, Documentation
Availability
Officially announced:
Sep 12, 2017
Jul 30, 2020
