Samsung Galaxy M31 In Depth Review. Mega Monster? Honest Opinion [2020]

The Samsung galaxy M31 is one of the smartphones following the ‘M’ series lineup and has followed its predecessor, the Samsung galaxy M30 having similar specifications to that of it with a tinge of better features than the previously launched similar smartphones. The ‘M’ series line up has been designed by the company mainly targeting the mid-range users around the country, its main motto being the availability of the new advancements of the technological feature in a cheaper price.

Samsung galaxy M31 is the successor of both the M30 and the M30s smartphones with no basic change in its outward design and it is truly hard to distinguish between these smartphones when seen with naked eye, the only changes lie in the internal hardware peripherals of the smartphones. The Samsung galaxy M31 was officially launched on 4TH March 2020. Before the launch of this smartphone the company had previously launched 6 smartphones of this series thus improving the accuracy of the devices continuously.

The detailed specifications are provided below:


The Samsung galaxy M31 is equipped with a 6.4-inch super AMOLED capacitive touchscreen with a U-shaped notch centering the camera, of16M colors. It has a screen to body ratio of 84.1%. The Samsung Galaxy M31 screen supports 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) and also sports the corning gorilla glass 3. The bezels provided are thin as well, thus giving access of more space to the screen.


galaxy m31

The Samsung galaxy M31 is provisioned with an Exynos 9611 processor of a clock speed of 10nm. The phone has an octa core processor (4×2.3 GHz Cortex-A73 & 4×1.7 GHz Cortex-A53) and the GPU provided is Mali-G72 MP3. The Samsung galaxy M31 sports a 6GB RAM and 64GB internal memory for the base variant. If we are to discuss only about the performance of this smartphone then I would like to notify that the Samsung galaxy M31 has been designed perfectly to run some perfect games but occasionally it may slow down as well, as the processor attired with phone is of mediocre quality, paving the way to some minor crashes though not often.


The Samsung Galaxy M31 can be considered as a monster performer when the lasting of the power of the smartphone is being considered. The phone is equipped with a Li-Po 6000 mAh, non-removable battery and also supports 15W fast charging, thus making the phone battery last for almost 2 and a half day when used minimally, 2days when used optimally and a full day when used for heavy activities such as playing games or video editing of some sort.


The phone supports a 4g connectivity and is paired with a dual sim slot with dedicated space for the memory card as well. The phone supports Bluetooth 5.0, A2DP, LE. It also supports Wi-Fi 802.11 a/b/g/n/ac, dual-band with Wi-Fi Direct, NFC and hotspot as well. The Samsung galaxy M31 has a GPS connection like every smartphone with features such as GLONASS, GALILEO & BDS. It has USB Type-C 2.0 port and a 3.5 mm standard headphone jack. The fingerprint sensor is rear-mounted like every ‘M’ series smartphone, situated just beside the camera, pre-equipped with a variety of sensors like accelerometer, gyro, proximity & compass.


The Samsung galaxy M31 has a great quad rear camera setup featuring the 64 MP primary camera(f/1.8, 26mm (wide), 1/1.72″, 0.8µm, PDAF)+8 MP(f/2.2, 12mm (ultrawide)1/4.0″, 1.12µm)+5 MP, f/2.4, (macro)+5 MP, f/2.2, (depth) which provides perfection to each and every shot taken through the smartphone. The pictures clicked through the camera provides each and every detail minutely thus making it a great choice for the photographers.

It includes features such as LED flash, panorama, HDR & 4K video recording at a rate of 30fps for a quality of 1080p as well and supports gyro-EIS too. The selfie camera is located at the top of the screen shaped like a water drop featuring a 32 MP (f/2.0, 26mm (wide), 1/2.8″, 0.8µm) camera which also includes the same features to that of the rear camera thus making the Samsung galaxy M31 a great choice for the photo enthusiasts.


The Samsung galaxy M31 has been designed with great antiquity, focusing on the look being provided to it. The phone has dimensions of 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) weighing approximately 191 g (6.74 oz) which is comparatively lighter when a smartphone weight is being considered. It is made of plastic when the back-portion is being taken into account with a plastic frame where the screen has been set. The phone has been launched in three colors: Ocean Blue, Space Black, & Red with model names of SM-M315F, SM-M315F/DS, SM-M315F/DSN.

The Samsung galaxy M31 supports the latest version 10 android configured with the Samsung One UI 2.0, thus making it a typical lower-end Samsung smartphone. The phone has been launched in India this year and has been a great success across the country as it has a price of only 16499/- INR, which is relatively low when compared with the features being provided by the manufacturer.

You can check the official Samsung page for more


The Samsung galaxy M31 is a budget smartphone although the same features can be obtained in other smartphones like those of the brands of Realme, Xiaomi, Vivo, Oppo etc. So, before buying many may have doubts with this smartphone, but to speak the facts, it is the best phone which one should buy when one prefers to have complete reliability and longevity. Trust me, no other android smartphone brand provides these other than Samsung and is the largest manufacturer of smartphones because of these reasons.

But there are some cons as well, the processor could have been a much better one, thus becoming the only reason of complaints. The Samsung galaxy M31 has been upgraded a lot and has been made better too but there are many significant changes which can be made still thus giving the manufacturer another chance to improve their skills. The specs provided in the camera and battery are the best features which one can expect at this price range.


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