Samsung Galaxy M31s - Device Specifications

HomeSamsungGalaxy M31sWidthHeightThicknessWeightWrite a reviewSpecificationsDisplayCameraCPUBatterySAR Dimensions: 75.1 x 159.2 x 9.3 mmWeight: 208 gSoC: Samsung Exynos 7 Octa 9611CPU: 4x 2.3 GHz ARM Cortex-A73, 4x 1.7 GHz ARM Cortex-A53, Cores: 8GPU: ARM Mali-G72 MP3, 850 MHz, Cores: 3RAM: 6 GB, 8 GB, 1600 MHzStorage: 64 GB, 128 GBMemory cards: microSD, microSDHC, microSDXCDisplay: 6.5 in, Super AMOLED, 1080 x 2400 pixels, 24 bitBattery: 6000 mAh, Li-IonOS: Android 10Camera: 9280 x 6944 pixels, 3840 x 2160 pixels, 30 fpsSIM card: Nano-SIMWi-Fi: a, b, g, n, n 5GHz, ac, Dual band, Wi-Fi Hotspot, Wi-Fi DirectUSB: 2.0, USB Type-CBluetooth: 5.0Positioning: GPS, A-GPS, GLONASS, BeiDou, Galileo Add for comparison Suggest an edit
Brand

Brand name of the company that manufactures the device.

Samsung
Model

Model name of the device.

Galaxy M31s
Model alias

Аlternative names, under which the model is known.

SM-M317F/DSSM-M317F/DSNSM-M317FSM-M315FZKDINS
Width

Information about the width, i.e. the horizontal side of the device when it is used in its standard orientation.

75.1 mm (millimeters)7.51 cm (centimeters)0.246 ft (feet)2.957 in (inches)
Height

Information about the height, i.e. the vertical side of the device when it is used in its standard orientation.

159.2 mm (millimeters)15.92 cm (centimeters)0.522 ft (feet)6.268 in (inches)
Thickness

Information about the thickness/depth of the device in different measurement units.

9.3 mm (millimeters)0.93 cm (centimeters)0.031 ft (feet)0.366 in (inches)
Weight

Information about the weight of the device in different measurement units.

208 g (grams)0.46 lbs (pounds)7.34 oz (ounces)
Volume

Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped.

111.19 cm³ (cubic centimeters)6.75 in³ (cubic inches)
Colors

Information about the colors, in which the device is available in the market.

Mirage BlackMirage Blue
Body materials

Materials used in the fabrication of the device's body.

Plastic
SIM card type

Information about the type and size (form factor) of the SIM card used in the device.

Nano-SIM (4FF - fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm)
Number of SIM cards

Information about the number of SIM cards, supported by the device.

2
Features

Information about some specific features related to the SIM card(s) of the device.

Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)
GSM

GSM (Global System for Mobile Communications) was developed to replace the analog cellular network (1G), therefore it is referred to as a 2G mobile network. It has been improved with the addition of General Packet Radio Services (GPRS) and later via the Enhanced Data rates for GSM Evolution (EDGE) technology.

GSM 850 MHzGSM 900 MHzGSM 1800 MHzGSM 1900 MHz
UMTS

UMTS stands for Universal Mobile Telecommunications System. Based on the GSM standard, it is deemed as a 3G mobile network standard. It has been developed by the 3GPP and its major advantage is the provision of greater bandwidth and spectral efficiency, due to the W-CDMA technology.

UMTS 850 MHzUMTS 900 MHzUMTS 1900 MHzUMTS 2100 MHz
LTE

LTE is deemed to be the fourth generation (4G) of mobile communications technology. It has been developed by the 3GPP based on the GSM/EDGE and UMTS/HSPA technologies in order to increase the speed and capacity of wireless data networks. A further development of the technology is called LTE Advanced.

LTE 850 MHzLTE 900 MHzLTE 1800 MHzLTE 2100 MHzLTE 2600 MHz
Mobile network technologies

There are several network technologies that enhance the performance of mobile networks mainly by increased data bandwidth. Information about the communication technologies supported by the device and their respective uplink and downlink bandwidth.

UMTS (384 kbit/s )EDGEGPRSHSPA+ (HSUPA 5.76 Mbit/s , HSDPA 42 Mbit/s )LTE Cat 10 (102.0 Mbit/s , 452.2 Mbit/s )
Operating system (OS)

Information about the operating system used by the device as well as its version.

Android 10
User interface (UI)

Name and version of the user interface (UI) used by the operating system (OS).

One UI 2.1
SoC

The SoC integrates different hardware components such as the CPU, GPU, memory, peripherals, interfaces, etc., as well as software for their functioning.

Samsung Exynos 7 Octa 9611
Process technology

Information about the process technology used in manufacturing the chip. The value in nanometers represents half the distance between elements that make up the CPU.

10 nm (nanometers)
CPU

CPU is the Central Processing Unit or the processor of a mobile device. Its main function is to interpret and execute instructions contained in software applications.

4x 2.3 GHz ARM Cortex-A73, 4x 1.7 GHz ARM Cortex-A53
CPU bits

The CPU bits are determined by the bit-size of the processor registers, address buses and data buses. 64-bit CPUs provide better performance than 32-bit ones, which on their part perform better than 16-bit processors.

64 bit
Instruction set

The instruction set architecture (ISA) is a set of commands used by the software to manage the CPU's work. Information about the set of instructions the processor can execute.

ARMv8-A
CPU cores

A CPU core is the processor unit, which executes software instructions. Presently, besides single-core processors, there are dual-core, quad-core, hexa-core and so on multi-core processors. They increase the performance of the device allowing the execution of multiple instructions in parallel.

8
CPU frequency

The frequency of the processor describes its clock rate in cycles per second. It is measured in Megahertz (MHz) or Gigahertz (GHz).

2300 MHz (megahertz)
GPU

GPU is a graphical processing unit, which handles computation for 2D/3D graphics applications. In mobile devices GPU is usually utilized by games, UI, video playback, etc. GPU can also perform computation in applications traditionally handled by the CPU.

ARM Mali-G72 MP3
GPU cores

Similar to the CPU, the GPU consists of processing units called cores. They handle the computation of graphics in various applications.

3
GPU frequency

The frequency is the clock rate of the graphic processor (GPU), which is measured in Megahertz (MHz) or Gigahertz (GHz).

850 MHz (megahertz)
RAM capacity

RAM (Random-Access Memory) is used by the operating system and all installed applications. Data in the RAM is lost after the device is turned off or restarted.

6 GB (gigabytes)8 GB (gigabytes)
RAM type

Information about the type of RAM used by the device.

LPDDR4X
RAM channels

Information about the number of RAM channels integrated in the SoC. More channels mean higher data transfer rates.

Double channel
RAM frequency

RAM frequency relates directly to the rate of reading/writing from/in the RAM memory.

1600 MHz (megahertz)
Storage

Information about the capacity of the built-in storage of the device. Sometimes one and the same model may is offered in variants with different internal storage capacity.

64 GB (gigabytes)128 GB (gigabytes)
eMMC 5.1
Types

The various types of memory cards are characterized by different sizes and capacity. Information about the supported types of memory cards.

microSDmicroSDHCmicroSDXC
Type/technology

One of the main characteristics of the display is its type/technology, on which depends its performance.

Super AMOLED
Diagonal size

In mobile devices display size is represented by the length of its diagonal measured in inches.

6.5 in (inches)165.1 mm (millimeters)16.51 cm (centimeters)
Width

Approximate width of the display

2.67 in (inches)67.75 mm (millimeters)6.78 cm (centimeters)
Height

Approximate height of the display

5.93 in (inches)150.56 mm (millimeters)15.06 cm (centimeters)
Aspect ratio

The ratio between the long and the short side of the display

2.222:1
Resolution

The display resolution shows the number of pixels on the horizontal and vertical side of the screen. The higher the resolution is, the greater the detail of the displayed content.

1080 x 2400 pixels
Pixel density

Information about the number of pixels per centimeter (ppcm) or per inch (ppi) of the display. The higher the pixel density, the more detailed and clearer is the information displayed on the screen.

405 ppi (pixels per inch)159 ppcm (pixels per centimeter)
Color depth

The color depth of the display is also known as bit depth. It shows the number of bits used for the color components of one pixel. Information about the maximum number of colors the screen can display.

24 bit16777216 colors
Display area

The estimated percentage of the screen area from the device's front area.

85.59 % (percent)
Other features

Information about other functions and features of the display.

CapacitiveMulti-touch
2.5D curved glass screenCorning Gorilla Glass 3Infinity-O Display420 cd/m² peak brightness78960:1 dynamic contrast ratioWidevine L1 certification for HD streaming
Sensors

Sensors vary in type and purpose. They increase the overall functionality of the device, in which they are integrated.

ProximityAccelerometerCompassGyroscopeGeomagneticFingerprintVirtual Light Sensor
Sensor model

Information about the manufacturer and model of the image sensor used by this camera of the device.

Sony IMX682
Sensor type

Information about the sensor type of the camera. Some of the most widely used types of image sensors on mobile devices are CMOS, BSI, ISOCELL, etc.

CMOS BSI (backside illumination)
Sensor format

The optical format of an image sensor is an indication of its shape and size. It is usually expressed in inches.

1/1.72"
Pixel size

Pixels are usually measured in microns (μm). Larger ones are capable of recording more light, hence, will offer better low light shooting and wider dynamic range compared to the smaller pixels. On the other hand, smaller pixels allow for increasing the resolution while preserving the same sensor size.

0.8 µm (micrometers)0.000800 mm (millimeters)
ISO

The ISO rating or number is an indicator of how sensitive a camera's image sensor is to light. Image sensors operate within a specific ISO range. The higher the ISO rating is, the more sensitive to light the sensor is.

100 - 800
Aperture

The aperture (f-stop number) indicates the size of the lens diaphragm opening, which controls the amount of light reaching the image sensor. The lower the f-stop number, the larger the diaphragm opening is, hence, the more light reaches the sensor. Usually, the f-stop number specified is the one that corresponds to the maximum possible diaphragm opening.

f/1.8
Focal length and 35 mm equivalent

Focal length is the distance in millimeters from the focal point of the image sensor to the optical center of the lens. The 35 mm equivalent indicates the focal length at which a full-frame camera will achieve an angle of view that's the same as the one of the camera of the mobile device. It is measured by multiplying the native focal length of the camera by the crop factor of the sensor. The crop factor itself can be determined as the ratio between the diagonal distances of the image sensor in the 35 mm camera and a given sensor.

3.58 mm (millimeters)27 mm (millimeters) *(35 mm / full frame)
Flash type

The rear cameras of mobile devices use mainly a LED flash. It may arrive in a single, dual- or multi-light setup and in different arrangements.

LED
Image resolution

One of the main characteristics of the cameras is their image resolution. It states the number of pixels on the horizontal and vertical dimensions of the image, which can also be shown in megapixels that indicate the approximate number of pixels in millions.

9280 x 6944 pixels64.44 MP (megapixels)
Video resolution

Information about the maximum resolution at which the rear camera can shoot videos.

3840 x 2160 pixels8.29 MP (megapixels)
Video FPS

Information about the maximum number of frames per second (fps) supported by the rear camera while recording video at the maximum resolution. Some of the main standard frame rates for recording and playing video are 24 fps, 25 fps, 30 fps, 60 fps.

30 fps (frames per second)
Features

Information about additional software and hardware features of the rear camera which improve its overall performance.

AutofocusContinuous shootingDigital zoomGeotaggingPanoramaHDRTouch focusFace detectionWhite balance settingsISO settingsExposure compensationSelf-timerScene modePhase detection autofocus (PDAF)
8x digital zoomSecondary rear camera - 8 MP (ultra-wide angle)Aperture size - f/2.2 (#2)Third rear camera - 5 MP (depth-sensing)Aperture size - f/2.2 (#3)Fourth rear camera - 5 MP (macro)Aperture size - f/2.2 (#4)
Sensor model

Information about the manufacturer and model of the image sensor used by this camera of the device.

Sony IMX616
Sensor type

Information about the sensor type of the camera. Some of the most widely used types of image sensors on mobile devices are CMOS, BSI, ISOCELL, etc.

CMOS BSI (backside illumination)
Sensor format

The optical format of an image sensor is an indication of its shape and size. It is usually expressed in inches.

1/2.8"
Pixel size

Pixels are usually measured in microns (μm). Larger ones are capable of recording more light, hence, will offer better low light shooting and wider dynamic range compared to the smaller pixels. On the other hand, smaller pixels allow for increasing the resolution while preserving the same sensor size.

0.8 µm (micrometers)0.000800 mm (millimeters)
Aperture

The aperture (f-stop number) indicates the size of the lens diaphragm opening, which controls the amount of light reaching the image sensor. The lower the f-stop number, the larger the diaphragm opening is, hence, the more light reaches the sensor. Usually, the f-stop number specified is the one that corresponds to the maximum possible diaphragm opening.

f/2
Image resolution

Information about the number of pixels on the horizontal and vertical dimensions of the photos taken by the front camera, indicated in megapixels as well.

6528 x 4896 pixels31.96 MP (megapixels)
Video resolution

Information about the maximum resolution of the videos shot by the front camera.

3840 x 2160 pixels8.29 MP (megapixels)
Video FPS

Digital cameras are able to shoot videos at different frames per second (fps). Some of the main standard frame rates for recording and playing video are 24 fps, 25 fps, 30 fps, 60 fps. Information about the maximum possible fps for shooting videos at the maximum possible resolution.

30 fps (frames per second)
Features

Information about additional software and hardware features of the front camera which improve its overall performance.

Face unlock
Speaker

The loudspeaker is a device, which reproduces various sounds such as ring tones, alarms, music, voice calls, etc. Information about the type of speakers the device uses.

LoudspeakerEarpiece
Dolby Atmos
Radio

Information whether the device has an FM radio receiver or not.

Yes
Tracking/Positioning

The tracking/positioning service is provided by various satellite navigation systems, which track the autonomous geo-spatial positioning of the device that supports them. The most common satellite navigation systems are the GPS and the GLONASS. There are also non-satellite technologies for locating mobile devices such as the Enhanced Observed Time Difference, Enhanced 911, GSM Cell ID.

GPSA-GPSGLONASSBeiDouGalileo
Wi-Fi

Wi-Fi communication between devices is realized via the IEEE 802.11 standards. Some devices have the possibility to serve as Wi-Fi Hotspots by providing internet access for other nearby devices. Wi-Fi Direct (Wi-Fi P2P) is another useful standard that allows devices to communicate with each other without the need for wireless access point (WAP).

802.11a (IEEE 802.11a-1999)802.11b (IEEE 802.11b-1999)802.11g (IEEE 802.11g-2003)802.11n (IEEE 802.11n-2009)802.11n 5GHz802.11ac (IEEE 802.11ac)Dual bandWi-Fi HotspotWi-Fi Direct
Version

The technology has several versions, which improve the connection speed, range, connectivity and discoverability of the devices. Information about the Bluetooth version of the device.

5.0
Features

Bluetooth uses various profiles and protocols related to faster exchange of data, energy saving, better device discoverability, etc. Some of those supported by the device are listed here.

A2DP (Advanced Audio Distribution Profile)AVRCP (Audio/Visual Remote Control Profile)DIP (Device ID Profile)HFP (Hands-Free Profile)HID (Human Interface Profile)HSP (Headset Profile)MAP (Message Access Profile)OPP (Object Push Profile)PAN (Personal Area Networking Profile)PBAP/PAB (Phone Book Access Profile)HOGP
Connector type

There are several USB connector types: the Standard one, the Mini and Micro connectors, On-The-Go connectors, etc. Type of the USB connector used by the device.

USB Type-C
Version

There are several versions of the Universal Serial Bus (USB) standard: USB 1.0 (1996), the USB 2.0 (2000), the USB 3.0 (2008), etc. With each following version the rate of data transfer is increased.

2.0
Features

Тhe USB interface in mobile devices may be used for different purposes such as battery charging, using the device as a mass storage, host, etc.

ChargingMass storageOn-The-Go
Headphone jack

Information whether the device is equipped with a 3.5 mm audio jack.

Yes
Connectivity

Information about some of the most widely used connectivity technologies supported by the device.

Computer syncOTA syncTethering
Browser

Information about some of the features and standards supported by the browser of the device.

HTMLHTML5CSS 3
Audio file formats/codecs

List of some of the most common audio file formats and codecs supported standardly by the device.

AAC (Advanced Audio Coding)AMR / AMR-NB / GSM-AMR (Adaptive Multi-Rate, .amr, .3ga)AMR-WB (Adaptive Multi-Rate Wideband, .awb)eAAC+ / aacPlus v2 / HE-AAC v2FLAC (Free Lossless Audio Codec, .flac)M4A (MPEG-4 Audio, .m4a)MIDIMP3 (MPEG-2 Audio Layer II, .mp3)OGG (.ogg, .ogv, .oga, .ogx, .spx, .opus)WMA (Windows Media Audio, .wma)WAV (Waveform Audio File Format, .wav, .wave)
Video file formats/codecs

List of some of the most common video file formats and codecs supported standardly by the device.

3GPP (3rd Generation Partnership Project, .3gp)3GPP2 (3rd Generation Partnership Project 2, .3g2)AVI (Audio Video Interleaved, .avi)Flash Video (.flv, .f4v, .f4p, .f4a, .f4b)H.263H.264 / MPEG-4 Part 10 / AVC videoH.265 / MPEG-H Part 2 / HEVCMKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks)MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v)VC-1VP8VP9WebMWMV (Windows Media Video, .wmv)WMV7 (Windows Media Video 7, .wmv)WMV8 (Windows Media Video 8, .wmv)Xvid
Capacity

The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours.

6000 mAh (milliampere-hours)
Type

The battery type is determined by its structure and more specifically, by the chemicals used in it. There are different battery types and some of the most commonly used in mobile devices are the lithium-ion (Li-Ion) and the lithium-ion polymer battery (Li-Polymer).

Li-Ion
4G talk time

4G talk time is the time period a battery charge will last, if one is constantly talking on the phone in a 4G cellular network.

51 h (hours)3060 min (minutes)2.1 days
Features

Information about some additional features of the device's battery.

Fast chargingNon-removable
25W fast charging
Head SAR (EU)

The SAR head rating shows the highest level of exposure to electromagnetic radiation measured when the device is held next to the ear in a talk position. In Europe, the SAR limit for hand-held mobile devices is set to 2 W/kg per 10 g of tissue. This standard is specified by the CENELEC, complies with the IEC standards and follows the ICNIRP Guidelines 1998.

0.756 W/kg (watts per kilogram)
Body SAR (EU)

This SAR rating shows the highest level of exposure to electromagnetic radiation measured when the device is placed at the hip level. The top SAR value for mobile devices used in Europe is limited to 2 W/kg per 10 g of tissue. This standard follows the ICNIRP Guidelines 1998 as well as the IEC standards and is determined by the CENELEC.

1.365 W/kg (watts per kilogram)
Head SAR (India)

In India, the applicable limit for the head SAR is 1.6 W/kg per 1 g of tissue. Locally, the SAR levels are measured and certified by the Telecom Engineering Centre (TEC) or an internationally accredited lab.

1.38 W/kg (watts per kilogram)
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Samsung Galaxy M31s

Dimensions: 75.1 x 159.2 x 9.3 mmWeight: 208 gSoC: Samsung Exynos 7 Octa 9611CPU: 4x 2.3 GHz ARM Cortex-A73, 4x 1.7 GHz ARM Cortex-A53, Cores: 8GPU: ARM Mali-G72 MP3, 850 MHzRAM: 6 GB, 8 GB, 1600 MHzStorage: 64 GB, 128 GBDisplay: 6.5 in, Super AMOLED, 1080 x 2400 pixels, 24 bitBattery: 6000 mAh, Li-IonOS: Android 10Camera: 9280 x 6944 pixels, 3840 x 2160 pixels, 30 fps

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