The Samsung Galaxy M series has gained a lot of popularity thanks to affordable prices and up-to-date hardware. Samsung has managed to lower prices by selling these models online, reducing distribution costs. The sub-Rs. 15,000 Samsung Galaxy M30 set the pace, and a refreshed version, the Galaxy M30s, really helped the company strengthen its position in this segment. Samsung has now launched a successor to the Galaxy M30s, called the Galaxy M31. You now get a quad-camera setup, an upgrade from the triple camera setup on the M30s. However, the processor and the battery capacity remain unchanged. Will this be enough to keep the Galaxy M series competitive in the market? We review the Galaxy M31 to find out.

At first glance, it is hard to distinguish between the Samsung Galaxy M30s[1] (Review[2]) and the Galaxy M31[3] 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[4] 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....

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