Samsung Galaxy M31 Review

Samsung Galaxy M31 design

At first glance, it is hard to distinguish between the Samsung Galaxy M30s (Review) and the Galaxy M31₹ 15,999 from the front. Both smartphones sport big 6.4-inch displays with waterdrop notches, which Samsung calls Infinity U displays, The bezels aren’t thin but are acceptable for the price. Just like with other M series smartphones, Samsung has used plastic in the construction of the Galaxy M31. The earpiece is sleek and sits right above the display in the frame of the smartphone.

Pick the Galaxy M31 up and it feels comfortable to hold in the hand. The sides are slightly curved which helps with grip. Samsung has positioned the power and volume buttons on the right of the device. The power button is easy to reach but the volume buttons could have been positioned better. On the left is the SIM tray which did not sit perfectly flush on our review unit. The Galaxy M31 has a 3.5mm headphone jack, primary microphone, USB Type-C port, and speaker at the bottom. The top only has the secondary microphone.

When you look at the back of the Galaxy M31, you’ll see some changes. The camera module is similar to that of the Galaxy M30s but it now packs a fourth camera. Next to this is the fingerprint scanner which was comfortable for us to reach while holding the smartphone.

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Samsung Galaxy M31 specifications and features

The spec sheet of the Galaxy M31 looks similar to that of the Galaxy M30s. It sports a 6.4-inch AMOLED display with a full-HD+ resolution. It also has Corning Gorilla Glass 3 for protection which should keep it from picking up scratches too easily. The display has good viewing angles and is legible when outdoors. There are two color profiles to choose from, and you can also change the white balance.

Samsung has retained the Exynos 9611 SoC from the Galaxy M30s. This is an octa-core processor with four performance ARM Cortex-A73 cores clocked at 2.3GHz and four efficiency Cortex-A53 cores clocked at 1.7GHz. For graphics, it has the Mali-G72 GPU. You get 6GB of RAM and a choice between a 64GB storage variant and a 128GB storage variant for Rs. 15,999 or Rs. 16,999 respectively. However, Samsung is offering a Rs. 1,000 discount which brings the prices down to Rs. 14,999 and Rs. 15,999 respectively. The duration of this offer has not been specified.

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Samsung Galaxy M31 performance and battery life

Samsung has bumped up RAM on the Galaxy M31 compared to its predecessor which should give it some leverage while multitasking. We did not notice any lag or stutter while using the smartphone. The device is fairly quick to load up apps however big apps do take slightly longer. Since there is plenty of RAM, multitasking is a breeze and we did not find ourselves waiting for an app to load all over again.

The fingerprint scanner is quick to unlock the smartphone, and the selfie camera does a decent job with face recognition. We enjoyed watching content on the AMOLED display. There is Widevine L1 support which should let you stream full-HD content.

We ran our usual benchmarks on the Galaxy M31. In AnTuTu, it managed to score 191,981 points which are higher than the Galaxy M30s did. The Galaxy M31 also scored 348 and 1,247 respectively in Geekbench’s single-core and multi-core tests. As for graphics benchmarks, the Galaxy M31 managed 41fps in GFXBench T-Rex, and 8.9fps in GFXBench Car Chase.


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Samsung Galaxy M31 cameras

The Galaxy M31 sports a quad-camera setup at the back and a single 32-megapixel selfie shooter. The primary camera on the Galaxy M31 has a 64-megapixel resolution and f/1.8 aperture. This camera takes 16-megapixel binned shots by default but you can switch to the full resolution. There’s also an 8-megapixel ultra-wide-angle camera with a 123-degree field of view and an f/2.2 aperture. The other two are a 5-megapixel depth sensor and a 5-megapixel macro camera. Samsung’s camera app is the same as before and we could find our way around it very easily. There’s a toggle to switch between the primary and the wide-angle cameras. The Scene Optimiser is quick to detect scenes and set the camera up accordingly.

Reason to Buy 


Samsung Galaxy M31 128GB smartphone price in India is Rs 15,999. Samsung Galaxy M31 128GB was launched in the country on April 6, 2020 (Official). The smartphone comes in 2 other storage and RAM variants – Samsung Galaxy M31 8GB RAM, Samsung Galaxy M31. As for the color options, the Samsung Galaxy M31 128GB smartphone comes in Black, Blue colors.

Is it a phone worth buying?

There are few reasons to buy this phone, but to be fair, they are good ones. The OLED display is fantastic, as is the battery life. Performance is adequate for day-to-day tasks, and as long as you don’t intend to game much, there’s really no reason not to pick up this phone, other than camera performance, that is.

The reasons not to buy this phone are equally compelling, however. Phones like the Realme 6 Pro and Redmi Note 9 Pro Max are more powerful, more exciting, and offer better cameras. These phones also charge faster.

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Price In India ₹ 15,999
Performance Samsung Exynos 9 Octa
Storage 128 GB
Camera 64+8+5+5 MP
Battery 6000 mAh
Display 6.4″ (16.26 cm)
Ram 6 GB
Launch Date In India April 6, 2020 (Official)
Front Camera 32 MP
Battery 6000 mAh
Processor Samsung Exynos 9 Octa 9611
Display 6.4 inches
Ram 6 GB
Rear Camera 64 MP + 8 MP + 5 MP + 5 MP


Other Sensors Light sensor, Proximity sensor, Accelerometer, Gyroscope
Fingerprint Sensor Position Rear
Fingerprint Sensor Yes

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