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Samsung Galaxy A31 vs Samsung Galaxy A51: The Battle of Two Samsung Mid-Rangers 

We start a new week with an interesting mid-range battle, pitting the Samsung Galaxy A31 against its relative, the Samsung Galaxy A51. This comparison brings two different smartphones from different timelines, with the A51 launching in 2019 and going on to become one of the best-selling Android phones of Q1 2020. Stick with us and see who wins this interesting battle.


The Galaxy A31 launched in March of 2020, while the Galaxy A51 launched a couple of months earlier in December of 2019. The Galaxy A51 was Samsung’s best-selling smartphone in the first quarter of 2020.

We will start this comparison by zooming in on the features and specifications of both devices in a brief moment, while we also bring you the more subtle differences between these two mid-range smartphones.

Our first stop will be the specifications of both smartphones in a side-by-side manner.


Samsung Galaxy A31 vs Samsung Galaxy A51 Comparison Table

This is where we take a closer look at what both smartphones have to offer us.

Samsung Galaxy A31 Samsung Galaxy A51
2G, 3G, 4G 2G, 3G, 4G
6.4 inches, 2400 × 1080 pixels, 20:9 aspect ratio, Infinity-U Super AMOLED display 6.5 inches, 2400 × 1080 pixels, 20:9 aspect ratio, Infinity-O Super AMOLED display
Android 10 + Samsung One UI 2.0 Android 10 + Samsung One UI
Octa-core MediaTek Helio P65, 2.0GHz Octa-core Exynos 9611, 2.2GHz
20MP selfie camera 32MP selfie camera
48MP + 8MP + 5MP + 5MP quad rear cameras with LED flash 48MP + 12MP + 5MP + 5MP quad rear cameras with LED flash
64/128GB internal storage + dedicated microSD card up to 512GB 64/128GB internal storage + dedicated microSD card up to 512GB
5,000mAh battery with 15W fast charge 4,000mAh battery with 15W fast charge
₦81,200/₦91,100 ($213/$239) ₦103,800/₦135,450 ($282/$350)

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Samsung Galaxy A31 vs Samsung Galaxy A51: Where the Galaxy A31 Has the Edge

The A31 features a slightly newer Android OS, with the Android 10 with One UI 2.0 taking care of business on the software front. It also offers two RAM variants, with the 4GB variant under the microscope today.

It shares a number of features with the A51 like its RAM, external memory and internal memory. It also has a similar camera outlay as the A51, with four rear cameras lining its back panel.

The A31 is available at a cheaper price for its 4GB/64GB and 4GB/128GB models, making it a good option for users who want a solid mid-range device at a good price. It also has a stronger battery than its rival on the day, with a 5,000mAh battery that keeps this device powered all day.

samsung galaxy a31 v Samsung Galaxy A51 specs red blue

Samsung Galaxy A31 vs Samsung Galaxy A51: Where the A51 Has the Edge

The A51 boasts a slightly larger display than the A31. It has a faster operating processor under the hood, with the Exynos 9611 chipset helping this device run more smoothly.

The A51 boasts a similar camera setup as its rival, however, its sensors have better specs than the Galaxy A31’s cameras. But then, these specs do not necessarily mean that it offers a better photography experience than the A31.

The A51 shares the same onboard storage as the A31 and also has two storage variants like its counterpart. It also brings the same external memory to the fray and supports 4G technology.

Samsung Galaxy A51

Samsung Galaxy A31 vs Samsung Galaxy A51: Which of These Samsung Devices Should You Go With?

Both devices offer 4G technology, have solid processors, have good RAM and provide great batteries to carry their impressive specs. But when it comes to the big decision, which of these smartphones should you go for?


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The A31 shares a number of specs with the A51, also coming in two RAM variants. Its 4GB models are available at better prices than the A51’s and this device comes with a stronger battery than its counterpart. It also has a slightly newer Android OS and is a solid option for users who need a mid-range smartphone from Samsung.

The A51, on the other hand offers a camera setup with better looking specs than its counterpart, it also has a slightly larger display, making it the go-to option for users who want to watch their favourite movies on their smartphone. It has a chipset with faster operating speeds than its counterpart, making this device run smoother and multitask more effectively.

At the end of the day, the Samsung Galaxy A31 wins this Samsung Galaxy A31 vs Samsung Galaxy A51 matchup by a slim margin. Its better pricing, alongside its stronger battery and solid specs see it edge past the A51. Although the A51 has a number of interesting advantages, it is rather expensive compared to the A31’s 4GB variant and this price tag may be a turn off for a certain class of buyers.


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