Samsung M31 review

The Samsung Galaxy M31 is a mid-range smartphone from one of the world’s most trusted companies. The range starts at Rs. 17,499, and goes up-to Rs 20,499. The Galaxy M31 has a powerful processor Exynos 9611, awesome display, monster battery with long battery life and most importantly, great front and rear cameras. The phone comes in three variants, one with 6GB RAM/64GB storage, the other with 6GB RAM/128 GB storage and the third one with 8 GB ram/128 GB storage.

See comparison between Galaxy M31 and Galaxy M31s

See comparison between Galaxy M31 and Galaxy M21

Key Specs

PerformanceSamsung Exynos 9 Octa 9611
Display6.4 inches sAMOLED FHD+ Display
Rear Camera64 MP + 8 MP + 5 MP + 5 MP
Front Camera32 MP
Battery6000 mAh
Storage64/128 GB, Expandable upto 512 GB
Ram6 GB/ 8 GB
Price in India17499/ 20499

Samsung M31: Worthful Device

The front of the phone has an 64-inch AMOLED infinity-U display which gets a waterdrop style notch over the screen. The 6.4-inch super AMOLED display is perfect for watching movies, editing videos and reading epapers. The display is bright, colourful and perfect for watching HDR videos. That’s typical of a Samsung AMOLED display. Flip the phone, and you will notice the rectangular camera bump on the top left. This setup is similar to that of the Galaxy S series. On the left side there’s the SIM tray, while on the right, there’s a power button and volume rocker. On the bottom, there’s a USB-C port, a speaker and a headphone jack. The fingerprint sensor is present at the back of the phone and gives super quick response.

Galaxy M31’s back panel is made of polycarbonate plastic which is durable and won’t take scratches that easily. Smartphones with glass build in the backside are more vulnerable to break on fall. The Samsung M31 here provides a solution to this and will be durable. The build quality is solid, though there is no waterproof rating. You can get the Galaxy M31 in Space Black and Ocean Blue color options.

And how long does the battery last on the Galaxy M31?

The Galaxy M31 is powered by a 6,000mAh battery that can easily get you through two days. A 15W bundled fast charger comes in the box along with the smartphone and will come handy .

What’s striking about the Cameras

Samsung has improved the camera quality on the Galaxy M31. On the back of the phone, you will find a 64MP primary  sensor with an f/1.8( Upto 8x Digital Zoom) lens, a 8 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera(12 mm focal length, 4.0″ sensor size, 1.12µm pixel size)5 MP f/2.4 Camera(25 mm focal length, 5.0″ sensor size, 1.12µm pixel size) which is for close-up shots while the 5MP f/2.2, Depth Camera is capable of taking portrait shots with live focus.

Galaxy M31 has video capability with 4K recording and it supports slow-mo, Hyperlapse and super-steady modes. In addition, Galaxy M31 also has night mode for awesome low light photography. The 32MP front camera also supports 4K video recording and slow-mo selfies.

General features

Operating SystemAndroid v10 (Q)
Quick ChargingYes,
ModelGalaxy M31
Sim SlotsDual SIM, GSM+GSM, Dual VoLTE
Custom UiSamsung One UI
Rear Camera set-upQuad Camera set-up
Sim SizeSIM1: Nano, SIM2: Nano
Network4G: Available (supports Indian bands), 3G: Available, 2G: Available
Fingerprint SensorYes, Back mounted, Quick response
Face UnlockYes, Quick response


ChipsetSamsung Exynos 9 Octa 9611
ProcessorOcta core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
GraphicsMali-G72 MP3
Architecture64 bit
Ram6 GB/8 GB


Quick ChargingYes, Fast, 15W
Usb TypecYes
Capacity6000 mAh
Talk TimeUpto 48 hrs(4G)


Display TypeSuper AMOLED
Aspect Ratio19:5:9
Bezelless DisplayYes, with Water-drop notch
Pixel Density403 ppi
Screen ProtectionCorning Gorilla Glass v3
Screen To Body Ratio Calculated83.92 %
Screen Size6.4 inches
Screen Resolution1080 x 2340Pixels
Touch ScreenYes, Capacitive Touchscreen, Multi-touch


Width75.1 mm
Weight191 grams
Thickness8.9 mm
Height159.2 mm
ColoursSpace Black, Ocean Blue


Rear/ Front Camera SetupQuad/Single
Camera Features8x Digital Zoom, Auto Flash, Face detection, Touch to focus
SensorISOCELL Plus
Image Resolution9000 x 7000 Pixels
Resolution64 MP f/1.8 Primary Camera, 8 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera, 5 MP f/2.4 Camera, 5 MP f/2.2, Depth Camera
Rear/ Front Physical ApertureF1.8/F2.0
Front Camera Resolution32 MP f/2.0 Primary Camera
Video Recording4K @ 30 fps, 1080×720 @ 240 fps
Shooting ModesContinuos Shooting, High Dynamic Range mode (HDR)
SettingsExposure compensation, ISO control
Optical image stabilizationNo


Audio Jack3.5 MM
Audio FeaturesDolby Atmos
FM RadioYes

Bottom line

Overall, in my opinion, the smartphone is simply great considering the price. The smartphone’s powerful processor will help you perform day-to-day functions with much ease. Moreover, the battery will easily last 2 days. The phone provides great value or money. If you are looking for Mid-Range phones then galaxy M31 is the perfect choice.


  1. […] The Samsung Galaxy M31 has been launched with a starting price of Rs. 17,499 for the 6GB RAM variant. The 8GB RAM option has a price of Rs. 20,499. Both the variants Come with 128GB of storage. The smartphone comes in Mirage Black and Mirage Blue colors. Galaxy M21 s priced Rs. 13,999 for the 4GB variant and Rs. 16,499 for the 6GB variant. It comes in Raven Black and Midnight Blue colors. […]

  2. […] Samsung has introduced the new feature of Reversible charging in M31s which cannot be seen in other M series smart […]

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