Samsung Galaxy M31s Review

Samsung launched Budget M series smartphone Named Galaxy M31s. Samsung Galaxy M31 is priced at 20,499 @ 6GB + 128GB Variant & 22,499 for 8GB + 128GB Varinat In India.

Galaxy M31s features the Exynos chip from Samsung named Exynos 9611. this chip is made of 10nm LPP (Low Power Plus) FinFet process. this processor is divided into 2 parts; the first part features 4 x A73 High power cores which are clocked at 2.3GHz, The second part features 4 x A53 Low powered cores that are clocked at 1.7 GHz. It has Mali G72 MP3 GPU it has an X12 LTE Modem which has Download and Uploads speeds of 600 & 150MBPS. 

I will divide the review into pros & cons. let’s see quick specs of  
Samsung Galaxy M31s and Jump into the review.

Samsung Galaxy M31s Specs

  • 6.5” FHD+ AMOLED infinity O Display
  • Exynos 9611 CPU
  • Mali-G72 MP3 GPU
  • 6 / 8GB LPDDR4X Ram
  • 128 GB Internal Storage.
  • Quad Camera: 64MP F/1.8 (main) + 12MP F/2.2 (Ultrawide) + 5MP F/2.4 (Macro) + 5MP F/2.4 ( Depth )
  • 32MP F/2.0 Front camera
  • 6000mAH battery with 25W fast charging support
  • One Ui 2 Based on Android 10.0
  • In-Display fingerprint scanner / Volte / Dual GPS
  • WiFi ( Dual Band ) / Bluetooth 5.0
  • USB – C / NFC

Must Check: Poco M2 Is Launching On September 8 With Large Display & Huge battery



 6.5″ Super AMOLED display, good quality FHD+, viewing angles are good very, very bright in sunlight and Smooth. no flaws with the display. the colors are very punchy on this display. 


The Exynos 9611 processor is good for daily usage, it is fast and fluid and Equal to SD 710. this can handle Pubg or Asphalt 9 on medium settings with a minimum frame drops. but the Gameplay seems to be not good. no heating issues

Screen Casting:

It supports for screencasting on Galaxy M31s

Dual Volte:

Dual voltage functionality is there on Galaxy M31s.


All sensors are present and work very well too on Galaxy M31s

One Ui 2 Based On Android 10:

It runs One UI 2 based on Android 10, feels snappy with extra customizable options with Productive Microsoft Apps.

OTG Functionality:

Otg functionality is there, but hard-disk also works.

Screen gestures:

Full-screen gestures are also present on Galaxy M31s.

Ram Management:

Ram management, its very good, no reloading of apps. Multitasking is very good.

Celluar Call Quality:

Cellular call quality is good, I did not have any problems with it.

Must Check: Poco M2 Is Launching On September 8 With Large Display & Huge battery


Galaxy M31s has support for dual-band Wi-Fi both 2.4GHz & 5Ghz band.

Headphone Jack & Speaker:

Output via the 3.5mm headphone jack, its good with Dolby Atmos Sound.

The Single speaker system On Galaxy M31s, it’s good enough in the single Room and Average in Outdoor conditions and calls on speakerphone are fine.


Galaxy M31s Battery Life, average battery life. I’m getting 7 hours of sot with 1 day of usage & 2 days with medium usage. it takes 1 hour 45Min to fully charge the battery.

Side Mounted Fingerprint Sensor:

The Side Mounted fingerprint sensor is Moderate and very accurate. it does not fail, most of the time it worked.

Face Unlock

Face unlock on Galaxy M31 also works fine. it does not unlock with closed eyes also.

Rear Cameras

  • Rear Triple Camera, it can work like 64MP + 12MP + 5MP + 5MP Cameras.

64MP Main Camera

the 64MP main Camera With PDAF is Awesome and features a Fixed Aperture of F/1.8. The daylight pictures are Good and contain good details. Exposure is in control with an good Dynamic range to take good pictures in Daylight or Good lighting conditions. In low light conditions, the images are average. With Night Mode it just Improves a Bit.

12MP Ultra Wide Angle Camera:

the 12MP ultra-wide-angle lens on M31s does an Awesome job in good lighting conditions and features a Fixed Aperture of F/2.2. it captures a much wider picture in a 108˚ field of view with Good details. exposure also control with a good dynamic range. In low lighting conditions, the pictures from the 8MP camera have a bit of noise in pictures.

5MP Depth Camera:

Galaxy M31s has A 5MP Depth Camera of F/2.4 Which Allows You to Capture Good Portrait Shots.

5MP Macro camera:

The 5MP Macro Camera Works and the Quality in daylight conditions is good, in night conditions image quality is horrible.

Front Camera

the 32MP Front camera, its good & picture quality is fine. HDR is good too. it can shoot the video at 4K @ 30fps

Photos are good and well detailed. At night conditions the photos look good with good details. video quality is good in daylight and a bit average night time. it can record up to 4K,1080P &720 @ 30FPS. Here there is stabilization in 1080p.


  • Awesome 6.5” Super AMOLED Display with widevine L1 Support
  • Massive 6000 mAh Battey with 25W fast charging
  • All-round Performance
  • Very Light To Hold
  • Excellent camera Quality in Daylight and Low Light


  • plastic body and frame 
  • Wide Angle Camera In Low Light Needs a Little Improvement
  • Not Suitable for Gaming

Must Check: Poco M2 Is Launching On September 8 With Large Display & Huge battery

If you are using Samsung Galaxy M31s then Share your experiences with us in the comment section below and Stay tuned to MobiRadar for more Reviews like this

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