Comparative: Moto G30 or Galaxy M31; which one to buy? | Cell

O Moto G30 it’s the Galaxy M31 are cell phones from Motorola and the Samsung with 64 MP camera and large battery, 5,000 mAh and 6,000 mAh, respectively. Smartphones have other similar points of technical data, but they differ especially in price, screen and in the processing set. If you were in doubt about which phone to buy, find out what changes and which one is the best for you in this comparison.

Moto G30 vs Galaxy M31 (Image: Vitor Pádua / Tecnoblog)

Moto G30 vs Galaxy M31 (Image: Vitor Pádua / Tecnoblog)

Fact sheet – Moto G30 vs Galaxy M31

Motorola Moto G30 Samsung Galaxy M31
Launch March 2021 July 2020
Launch price R $ 1,899 R $ 1,999
Screen 6.5 inch IPS LCD; HD + resolution; 90 Hz refresh rate Super AMOLED; 6.4 inches; Full HD + resolution;
Processor Qualcomm Snapdragon 662 (octa-core up to 2 GHz) Exynos 9611 (octa-core up to 2.3 GHz)
RAM memory 4 GB 6 GB
Storage 128 GB (expandable up to 1 TB via microSD) 128 GB (expandable up to 512 GB via microSD)
Back camera 64 MP (f / 1.7) + 8 MP (f / 2.2) ultrawide + 2 MP (f / 2.4) macro + 2 MP (f / 2.4) depth 64 MP (f / 1.8) + 8 MP (f / 2.2) ultrawide + 5 MP (f / 2.2) macro + 5 MP (f / 2.4) depth
Frontal camera 13 MP 32 MP
Factory operating system Android 11 Android 10
Drums 5,000 mAh 6,000 mAh
Dimensions and weight 165.3 x 75.8 x 9.2 mm; 200 grams 159.2 x 75.1 x 8.9 mm; 191 grams
Colors Dark Prism and White Lilac Blue, black and pink

Screen and design

Galaxy M31 has Super AMOLED screen, but Moto G30 has 90 Hz display

Although both models have practically the same screen size (6.4 and 6.5 inches), it is the Galaxy M31 that comes out ahead: the Samsung phone has a Super AMOLED display, which in addition to being more economical, delivers colors more vivid and a deeper black. In addition, the Galaxy M31’s screen has a higher resolution, Full HD +, providing more detailed images.

Samsung Galaxy M31 (Image: Darlan Helder / Tecnoblog)

Samsung Galaxy M31 (Image: Darlan Helder / Tecnoblog)

On the other hand, the Moto G30 has an IPS LCD display with HD + resolution, delivering a not too high brightness for outdoor environments, but “ok” levels for indoor locations – its asset is the highest refresh rate, 90 Hz, which provides more fluid graphics and greater visual comfort, partially offsetting the lost experience with the choice of display technology.

Motorola Moto G30 (Image: André Fogaça / Tecnoblog)

Motorola Moto G30 (Image: André Fogaça / Tecnoblog)

The edges around the screen are considerably larger on the Moto G30 – it is no wonder that the phone has the largest overall dimensions, although the screens are about the same size. The Galaxy M31 still has a prominent chin, but the top has thinner edges, looking for a path similar to the more expensive models of the brand.

Moto G30 has more attractive finish

Moving on to design, we have the Moto G30 as a highlight. The Motorola phone has more interesting colors: the model tested by Tecnoblog varied between blue or purple tones, depending on the angle and the light hitting the place. These are more interesting finishes for those who expect a little more than the basics.

The M31, on the other hand, is on “beans and rice”, with a plastic back, but shiny coating that resembles glass. The colors are solid: blue, black and pink, but there are no additional details. None of the smartphones have water protection.

Motorola Moto G30 (Image: André Fogaça / Tecnoblog)

Motorola Moto G30 (Image: André Fogaça / Tecnoblog)


Motorola is betting on a Snapdragon 662 processor – an octa-core chip of up to 2 GHz manufactured at 11 nm. It works in conjunction with 4 GB and provides good performance for basically any app without major problems.

As André Fogaça explained in his review of the Moto G30, the component is not surprising, but it is good for the price. In games, he can play any title, but not all in maximum graphic quality.

The Galaxy M31 brings the Exynos 9611, manufactured in 10 nanometers, octa-core and with a maximum speed of 2.3 GHz. The chip works with 6 GB RAM, which gives more breathing space for multitasking and use of apps in seconds. flat.

This is also not a game-oriented processor, but it runs well even on titles like Asphalt 9 and Call Of Duty, although there may be some sporadic gagging, as reported by Darlan Helder in the Galaxy M31 review.

In storage, we have the same internal capacity: 128 GB, which is a lot of space and will hardly require expansion. Still, if you need it, you can use microSD of up to 1TB on the Moto G30 and up to 512GB on the Galaxy M31.

Operating system and interface

Moving on to the software, here we have two phones that run Android, but with different interfaces. Motorola has a look more similar to that of Android Pure. Samsung already has One UI, which is one of the most – if not the most – pleasant interfaces that I have been able to test for Google’s OS.

Galaxy M31 apps

Applications on Galaxy M31 (Image: Darlan Helder / Tecnoblog)

The Moto G30 left the factory with Android 11 (which is due to the most recent release), while the Galaxy M31 was launched in 2020 with Android 10, but has already received the update for Android 11.


Both phones have a quad-camera with a 64-megapixel main sensor, and make good photos for the category. However, the rest of the sensors make the difference here.

The Galaxy M31 comes out ahead with a macro lens and a depth sensor with 5 MP sensors, against 2 MP of the respective sensors on the Moto G30. In practice, photos with close focus can capture more details in the M31, but only in well-lit places (such as plants under sunlight).

The ultrawide camera, to capture landscapes and a larger area of ​​a scene, is the same on both phones: 8 megapixels (f / 2.2). With the Moto G30, she takes good pictures during the day, but has bad results at night. The results are similar with the Galaxy M31, although the Samsung cell phone delivers more saturated images, which for those who are a fan of contrasts and strong colors (as is my case), is a positive point.

Night mode does not work miracles. On the Moto G30 it works more like a Russian roulette, sometimes hits and is acceptable for the segment. The Galaxy M31 does a little better in this regard, better controlling noise in dark places.

For selfies, the Moto G30 has 13 megapixels. Although it looks little compared to the 32 MP on the Galaxy M31, the phone makes great selfies, including portrait mode. The Samsung cell phone, in turn, sins more in post-processing, when trying to make adjustments to the face – the impression is that the user has put on makeup to take the photo.

Battery and charging

Both the Galaxy M31 and the Moto G30 are good options for those looking for a smartphone with a long battery life.

Samsung’s phone has a 6,000 mAh battery and, in our tests, it proved to be easily prepared to spend two days away from the plugs, with a break. The complete power, starting from zero, takes around 2h40min with the 15 watt power supply that comes in the box.

Galaxy M31 charger (Image: Darlan Helder / Tecnoblog)

In turn, the Moto G30 has 5,000 mAh, which easily faces the first day of use and can reach up to half the second if your profile is moderate (especially if you don’t use the 90 Hz refresh rate, which can be disabled in the settings).

The charging time of the Moto G30 is shorter, but not much. On average, it should take 2h30min to fill the tank completely, starting from scratch. It is compatible with a 20-watt fast charger.

Pricing and availability

Launched in July 2020, the Galaxy M31 arrived in Brazil for R $ 1,999 and, despite being more expensive on Samsung’s official website (R $ 2,399), it can be found for around R $ 1,620 in online retail.

The Moto G30 was announced in March 2021 for R $ 1,899 (gee, I remember when the Moto G’s were no more than R $ 1,000). On the date of publication of this article, it started at R $ 1,530 at retailers.

Samsung Galaxy M31 - Tecnoblog

Galaxy M31 in black color (Image: Darlan Helder / Tecnoblog)

Cost-effective: after all, Moto G30 or Galaxy M31?

With a price difference of basically R $ 100, the Galaxy M31 seems to be the most complete model for the price, offering the best value for money. It has a higher resolution screen, greater firepower, slightly better cameras and more battery power than the Moto G30.

In return, you end up with a not-so-attractive design, which can be a factor to consider, along with Motorola’s “purest” Android. Still, in the end, the Samsung device should be the best option for most consumers, considering the price in e-retail.

* Prices collected on April 22, 2021.

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