Home REVIEWS Samsung Galaxy M31 Mobile Specifications & Features (Detailed Reviews)

Samsung Galaxy M31 Mobile Specifications & Features (Detailed Reviews)

All the official and technical information of the middle-class Samsung Galaxy M31 presented in February 2020 through a sheet with its specifications, photos, video and price. This smartphone stands out for its 6.4-inch Super AMOLED screen with FHD + resolution and its 64 MP + 8 MP + 5 MP + 5 MP rear camera.

Specifications Of Samsung Galaxy M31


  • Super AMOLED type
  • Size – 6.4 inches
  • Colors – 24 bits (16,777,216 colors)
  • Brightness – 420 nits
  • Touch – Capacitive multi-touch
  • Corning Gorilla Glass 3 protection
  • Bar Format


Rear Camera (Main)

  • Photo mode resolution – 64 MP
  • 4K video mode resolution (3840 × 2160)
  • Maximum recording FPS – 30
  • Opening – f . 1.8
  • Artificial intelligence
  • Stabilizer type

Rear Camera (Second)

  • Wide angle camera type
  • Resolution – 8 MP (3280 x 2464)
  • Opening – f . 2.2

Rear Camera (Third)

  • Photo mode resolution – 5 MP (2592 x 1944)
  • Opening – f . 2.4

Rear Camera (Fourth)

  • Photo mode resolution – 5 MP (2592 x 1944)
  • Opening – f . 2.2

Front Camera (Main)

  • Resolution photo mode – 32 MP
  • 4K video mode resolution (3840 x 2160)
  • Maximum recording FPS – 30


  • LED flash
  • Video recording formats – 3GP (3GPP), MP4 (MPEG4 Part-14)
  • Video Playback Formats – 3GP (3GPP), MP4 (MPEG4 Part-14)
  • Pixel size – 0.8 microns
  • Extras – / PDAF / HDR / rear main camera with ISOCELL Bright GW1 image sensor / wide angle camera with 123º field of view / night mode / Slow Motion / Hyperlapse

System / Autonomy

  • Android OS 10
  • Manufacturer Interface – One UI2
  • Sensors – Accelerometer, Gyroscope, Rear Fingerprint Reader, Proximity, Face Recognition
  • Core – Samsung Exynos 9611 (8 cores (2x CortexA73 2.3 GHz + 2x Cortex-A53 1.7 GHz) 10 nm
  • Frequency – 2300 MHz
  • ARM Mali G72 MP3 Graphics Core
  • Geopositioning – GPS, A-GPS, Glonass, Beidou
  • 6000mAh Lithium Battery
  • Autonomy in conversation – 48 hours
  • Autonomy in music – 119 hours
  • Video autonomy – 26 hours
  • Fast charge – 15 W

Connectivity / Storage

  • USB – Type-C
  • Bluetooth – 5.0 with A2DP
  • WiFi -802.11a (5GHz), 802.11ac (5GHz), 802.11b (2.4GHz), 802.11g (2.4GHz), 802.11n (2.4GHz),
  • 3.5 mm headphones
  • Internal storage – 64GB, 128GB
  • External storage – SDXC (SD 3.0) ()
  • RAM memory -6 GB

Multimedia / Internet

  • Email – IMAP, POP3, SMTP
  • MP3, WAV music playback formats

Additional Features

  • Selling – Google Play Store applications
  • Sale of music, tones and videos – Google Play Store
  • Google Play book sale
  • Access to Social Networks – Installing apps
  • Extras – available in Ocean Blue and Space Black / Face unlock / Dolby Atmos sound and Widevine L1 certification /


  • 2G – GSM 850, GSM 900, GSM 1800, GSM 1900
  • 3G – 850, 900, 1900, 2100,
  • 4G – LTE
  • Radio data – GPRS, EDGE, HSPA, HSPA +, LTE, LTE Advanced, VoLTE
  • Max. download (HSPA +) – 42Mbps
  • Max. upload (HSPA +) – 5.8Mbps
  • Max. downlink (LTE) – 600 Mbps (LTE Cat 12)
  • Max. upload (LTE) – 150 Mpbs (LTE Cat 10)
  • SIM – Dual nano SIM slot

Also Read: Oneplus Nord 5G Phone Features & Specifications | Detailed Review

More About Samsung Galaxy M31

Samsung renews its mid-range catalogue with this Samsung Galaxy M31 that incorporates great innovations such as a four-sensor camera in a rectangular format that takes all eyes from the rear. To this, we add the presence of a 64 MP lens at the head and AI technologies to improve the photos we take with the smartphone.

In addition to the photographic component, the mobile phone presents interesting features such as a 6 GB RAM memory and storage that grows to 128 GB as well as a 6.4-inch FHD + panel, in addition to a 6000 mAh battery.


This is the video where the main functions that Samsung offers in its new mid-range smartphone are collected.


The screen of the Samsung Galaxy M31 is configured with 19.5: 9 aspect ratio and an FHD + resolution of 2340 x 1080 pixels. It is a 6.4-inch SuperAMOLED panel that ends up generating a density of 402 dpi. With 16 million colours and captive technology, it has a 420-bit brightness and Infinity-U Display technology, that is, it has a notch in the form of a drop of water.

In addition to these technical characteristics, the panel is protected against bumps and scratches by Corning Gorilla Glass 3.


The processor of the cheap mobile phone of the firm is an 8-core chipset capable of reaching a speed of 2.3 GHz. It is the new Exynos 9611 developed specifically for this range of Samsung that has a manufacturing process of 10 nm and It is accompanied by an ARM Mali G72 GPU that perfectly fulfils its mission when it comes to running the main Android apps.


The internal memory of the Samsung Galaxy that arrives to lead the manufacturer’s cheap mobile catalogue in 2020 is 64 or 128 GB while the RAM reaches 6 GB. There is no data on the capacity of the MicroSD cards that the phone supports.


The smartphone camera is the one that allows you to receive the nickname #MegaMonster. It is a 4-lens camera where the main sensor sounds with a resolution of 64MP with f / 1.8 aperture. Followed by a 12MP ultra-wide-angle camera with f / 2.2 aperture, a dedicated 5MP macro camera with f / 2.4 aperture and a depth sensor.

At the front, the Galaxy M31 has a 32MP camera with f / 2.2 aperture.) At the video level, both cameras can capture 4K videos at 30 fps and use the different AI tools proposed by the processor to help obtain better photos through scene recognition or automatic adjustment of the shot depending on our use.


The battery of the Korean company’s mobile phone has a cell that reaches 6,000 mAH, which is one of the largest we can find on a phone with these characteristics. It offers up to 48 hours of autonomy in continuous conversation, 119 hours in music playback and 26 hours in the video. To this, we must add its 15W fast charge technology.


Within the section of the physical connections of the Samsung Galaxy M31, the cheap phone of the Korean firm sports a USB Type C port for charging the mobile phone and passing data to the PC. It also has a fingerprint sensor located on the back of the phone.

Wirelessly, the smartphone is compatible with 4G networks at a download speed of 600 Mbps (LTE Cat 12) and 150 Mpbs (LTE Cat 10) upstream. Regarding Wi-Fi, we have compatibility with 802.11a (5GHz), 802.11ac (5GHz), 802.11b (2.4GHz), 802.11g (2.4GHz), 802.11n (2.4GHz, Bluetooth 5.0, GPS and FM Radio It also has NFC to make online payments.


The official price of the Samsung Galaxy M31 is a mystery to us as well, but we know what it should cost by taking a look at its sale price in India, where you can buy it in blue and black.

  • Samsung Galaxy M31 with 6 GB of RAM + 64 GB of internal storage: Rs 14,999 (about 199 euros to change) 
  • Samsung Galaxy M31 with 6 GB of RAM + 128 GB of internal storage: 15,999 Rs (about 215 euros to change)

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