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Samsung Galaxy M31

Samsung Galaxy M31
Brand: Samsung
Category: Phones
  • Display 6.4-inch Full-HD+ s.AMOLED screen
  • Camera 64 MP + 8 MP + 5 MP + 5 MP Main / 32 MP front
  • Memory 6GB RAM with 64/128GB ROM
  • Platform Exynos 9611 / Android 10

Our Rating

The rating is based on the opinions of users and reliable reviewers.

  • Design, Built Quality 7 / 10
  • Display Quality 9 / 10
  • Camera Quality 9 / 10
  • Audio & Multimedia 7 / 10
  • OS and Usability 9 / 10
  • Battery Performance 10 / 10

Samsung Galaxy M31 Highlights and Overview

The Samsung Galaxy M31 is the direct successor of the Sammy M30 launched back in 2019. The major selling point of the new Galaxy M31 is the large 6000mAh battery. But the device did not just come with battery power, it is also backed with a quad-rear camera cameras, of which the main sensor is a large 64-megapixel unit. It comes in a 6.4-inch Full-HD+ screen with tiny bezels and a notch overhead.

On the camera department, the M31 has a combination of a 64-megapixel main sensor, along with 8-megapixel ultra-wide sensor and additional two unit of 5-megapixel sensors, being a depth and macro lenses respectively. For selfie, there is a single 32-megapixel unit hidden in the overhead notch above the screen.

Powering the phone is Samsung home-made Exynos 9611, an octa-core CPU clocked at 2.3GHz, along with Mali-G72 GPU, a 6GB RAM and either 64/128 GB internal storage.

Whats more? The Galaxy M31 is fueled by the aforementioned 6000mAh battery with 15W fast charging support. It has a USB Type-C and available in Ocean Blue and Space Black colors with support for dual nano-SIMs. There is a rear placed fingerprint scanner, and the latest Android 10 based on One UI 2.0. Other key specifications and features of the Samsung Galaxy M31 are detailed in the table below.

Samsung Galaxy M31 Full Specifications and Features


Technology GSM / CDMA / HSPA / LTE
2G Network Bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only)
3G Network Bands HSDPA 850 / 900 / 1900 / 2100
4G Network Bands LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps


Also Known As -


Dimensions ---
Weight ---
Build Front glass, plastic body
SIM Type Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)


Display Type Super AMOLED capacitive touchscreen, 16M colors
Size 6.4 inches, 102.0 cm2 (~87.4% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 20:9 ratio (~405 ppi density)


Operating System Android 10; One UI v2
Chipset Samsung Exynos 9611 (10nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Mali-G72 MP3


Card Slot microSD, up to 1 TB (dedicated slot)


Camera Type Quadruple Lenses
Camera Sensor(s) 64 MP + 8 MP + 5 MP + 5 MP Main camera
Camera Features Autofocus
Face detection
F/2.0 aperture
LED Flash
8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µmr (second camera)
5 MP, f/2.2, depth sensor (third camera)
5 MP, f/2.4, (macro) (fourth sensor)
Video Resolution 1080p@30/240fps


Camera Type Single Lens
Camera Sensor(s) 32-megapixel
Camera Features F/2.0 aperture
Face beautification
Video Resolution 1080p@30fps


Loudspeaker Yes
Speaker Location Placed at the basement
Audio Jack Type Yes, 3.5mm audio jack


Bluetooth Bluetooth 5.0, A2DP, LE
FM Radio FM radio


Battery Capacity Non-removable Li-Po 6000 mAh battery
Wireless Charging No
Talk Time Talk Time is the longest time that a single battery charge will last when you are constantly talking on the phone under perfect conditions, Ambient temperature and highly dependent on the cellular network environment such as the distance to the closest cell network tower. Up to 33 hours
Stand-by Up to 740 hours


Sensors Fingerprint (side-mounted), accelerometer, proximity, compass
Box Contents Charging Brick / USB cable

Samsung Galaxy M31 User Reviews and Opinions

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Disclaimer Note

We CANNOT guarantee 100% accuracy for the specification table above.

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