Samsung M31s Review

The Samsung Galaxy M31s is a new mid-range smartphone from the wold’s most trusted company aimed for those who don’t want to spend on top-tier phones. Starting at Rs 19,499, the Galaxy M31s has an awesome display, monster battery with long battery life and most importantly, great front and back cameras. The phone comes in two variants, one with 6 GB ram/128 GB storage and the other with 8 GB ram/128 GB storage. The company has introduced many other striking features which were till now available only in high-range phones of Samsung.

Samsung M31s Price: Samsung launches Galaxy M31s with sAMOLED ...

Key Specs

PerformanceSamsung Exynos 9 Octa 9611
Display6.5 inches (16.40 cm) sAMOLED FHD+ Display
Rear Camera64 MP + 12 MP + 5 MP + 5 MP
Front Camera32 MP
Battery6000 mAh
Storage128 GB, Expandable upto 512 GB
Ram6 GB/ 8 GB
Price in India19499/ 21499

Samsung M31s: What’s New

The front of the phone has an edge-to-edge 6.5-inch AMOLED display and a small hole for the front-facing camera. The 6.5-inch super AMOLED display is perfect for watching movies, editing videos and reading epapers. The display is bright and colourful. 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 that doubles as a fingerprint scanner and volume rocker. On the bottom, there’s a USB-C port, a speaker and a headphone jack.

Like the Galaxy A51, the M31s’s back panel is made of polycarbonate plastic with a glass-like finish, which is hard to differentiate. The build quality is solid, though there is no waterproof rating. You can get the Galaxy M31s in Mirage Black and Mirage Blue colour options.

Another welcome change is a side-mounted fingerprint scanner. It’s way quicker and more reliable than in-display optical fingerprint sensors.

And how does the battery last on the Galaxy M31s?

The Galaxy M31s is powered by a 6,000mAh battery that can easily get you through two days. The 25W bundled fast charger will come handy which fully charges the phone in just 97 mins. The smartphone can also be used as a power bank as Samsung has introduced the new feature of Reversible charging in M31s which cannot be seen in other M series smart phones.

What’s striking about the Cameras

Samsung has improved the camera quality on the Galaxy M31s. On the back of the phone, you will find a 64MP primary Sony IMX682 sensor with an f/1.8 lens, a 12MP secondary sensor with a 123-degree ultra-wide-angle lens, a 5MP Macro lens which is for close-up shots while the 5MP depth lens is capable of taking portrait shots with live focus.

The main highlight of the camera in Samsung M31s is Single Take. The “Single Take” feature harnesses AI to capture different versions of the same moment. With “Single Take“, all the user has to do is press record at the right moment and Galaxy M31s will capture the footage, up to 10 seconds of it, and then use AI to produce up to 10 different outputs – seven photos and three videos. The ‘Single Take’ feature is available on both the rear and front cameras. This feature will come handy while recording special and memorable moments like birthday parties.

The company has also introduced the feature of switching between rear and front cameras which recording videos which is great and highly beneficial, so the user need not pause while taking videos to switch cameras.

Galaxy M31s has video capability with 4K recording and it supports slow-mo, Hyperlapse and super-steady modes. In addition, Galaxy M31s also has night mode for awesome low light photography. The 32MP front camera also supports 4K video recording and slow-mo selfies. Galaxy M31s combines powerful camera hardware with Intelli-Cam features.

General features

Operating SystemAndroid v10 (Q)
Quick ChargingYes, Fully charged in 97 mins
ModelGalaxy M31s
Sim SlotsDual SIM, GSM+GSM
Custom UiSamsung One UI
Rear Camera set-upQuad Camera set-up
Camera set-up
Punch-hole display design
Sim SizeSIM1: Nano, SIM2: Nano
Network4G: Available (supports Indian bands), 3G: Available, 2G: Available
Fingerprint SensorYes, Side 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, 25W
Usb TypecYes
Capacity6000 mAh


Display TypeSuper AMOLED
Aspect Ratio20:9
Bezelless DisplayYes, with punch-hole display
Pixel Density405 ppi
Screen ProtectionCorning Gorilla Glass v3
Screen To Body Ratio Calculated91 %
Screen Size6.5 inches (16.40 cm)
Screen Resolution1080 x 2400 Pixels
Touch ScreenYes, Capacitive Touchscreen, Multi-touch


Width74.06 mm
Weight185 grams
Thickness9.04 mm
Height159.07 mm
ColoursMirage Black, Mirage Blue


Rear/ Front Camera SetupQuad/Single
Camera FeaturesDigital Zoom, Auto Flash, Face detection, Touch to focus
SensorExmor RS
Image Resolution9000 x 7000 Pixels
Resolution64 MP f/1.8 Primary Camera, 12 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera, 5 MP f/2.4 Camera, 5 MP f/2.2, Depth Camera
Physical ApertureF2.0
Front Camera Resolution32 MP f/2.0 Primary Camera
Video Recording3840×2160 @ 30 fps
Shooting ModesContinuos Shooting, High Dynamic Range mode (HDR)
SettingsExposure compensation, ISO control
Optical image stabilizationYes


Audio Jack3.5 MM
Audio FeaturesDolby Atmos

Bottom line

Overall, in my opinion, the smartphone is simply great considering the price. The smartphone’s strong processor will help to carry out day-to-day functions with much ease. Moreover, the battery backup of the smartphone is just awesome. The battery will last for 2 days. The phone provides great value or money. If you are looking for Mid-Range phones then galaxy M31s is the perfect choice.


  1. Good attempt Adithyan….
    Wish you all the best.
    May God bless you.

  2. […] great useful new feature that Samsung has introduced in Galaxy M31s is the feature of switching between rear and front cameras which recording videos which is great and […]

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