K series, Galaxy A or M? Compare the cheap LG and Samsung | Cell phone

Galaxy A10, Galaxy M10, LG K40S or LG K12 Max? These are the cheapest Android smartphones from Samsung (Galaxy A and M) and LG (K Series) in Brazil. If you are looking for the basics and are on a tight budget, it is worth taking a look at these devices, launched here in 2019.

Image with two phones from Samsung and LG

The LG K40S is the cheapest model, ranging between R $ 750 and R $ 800; the LG K12 Max is on sale for around R $ 1,000, while the Galaxy A10 and Galaxy M10 are also found in national retailers for less than R $ 1,000.

Design and Colors

These K Series, Galaxy A and M devices have something in common: a large screen that takes up almost the entire front area. In addition, there are no physical buttons on the front. And with regard to dimensions, the Galaxy M10 is the thinnest and lightest device. On the other hand, the LG K12 Max is the heaviest, but nothing too exaggerated that can get in the way of everyday life.

Image dividing the Samsung Galaxy A10 and the Galaxy M10

See all measures below:

Samsung Galaxy M10

  • Height: 155.6 mm
  • Thickness: 7.7 mm
  • Weight: 163 grams

Samsung Galaxy A10

  • Height: 155.6 mm
  • Thickness: 7.9 mm
  • Weight: 168 grams


  • Height: 156.3 mm
  • Thickness: 8.6 mm
  • Weight: 168 grams

LG K12 Max

  • Height: 161.3 mm
  • Thickness: 8.75 mm
  • Weight: 170 grams

Galaxy A10, Galaxy M10, LG K40S and LG K12 Max have plastic body. The available colors are: new aurora black (almost black) and new moroccan blue (close to blue) for the LG K40S; the K12 Max brings the same shade of blue as the K40S, as well as black and new platinum gray (gray).

In the Samsung portfolio, the Galaxy A10 is found in colors: blue, red and black, while the Galaxy M10 is only available in black and blue.

Winner: optional.


Image dividing the LK K40S and the LG K12 Max

We know that a larger screen is synonymous with a better user experience, but in the case of the four devices there are not so many differences, as we can see in the table below. Therefore, everyone gains prominence on the screen.

Samsung Galaxy M10 Samsung Galaxy A10 LG K40S LG K12 Max
Size 6.2 inches 6.2 inches 6.1 inches 6.2 inches
Resolution HD + (1520 x 720 pixels), 19: 9 aspect ratio HD + (1520 x 720 pixels), 19: 9 aspect ratio HD + (1520 x 720), 19: 5: 9 aspect ratio. HD + (1520 x 720), 19: 9 aspect ratio

Winner: optional.


Back of Samsung Galaxy A10

Samsung Galaxy M10 and Galaxy A10

The Galaxy M10 is equipped with two rear cameras: the main one has 13 megapixels with an aperture of f / 1.9 and an angle of view of 120 degrees (ultrawide); the secondary has 5 megapixels and an aperture of f / 2.2. The selfie camera has 5 megapixels and an aperture of f / 2.0.

Simpler, the Galaxy A10 features only a 13 megapixel rear lens with an aperture of f / 1.9, while the front is a 5 megapixel lens with an aperture of f / 2.0.

LG K40S and K12 Max Front and rear of LG K40S

In the K Series, the LG K40S features a 13 megapixel primary lens (f / 2.0 aperture) and a secondary 5 megapixel lens (f / 2.2 aperture). In the front area, the K40S comes out ahead with a 13 megapixel selfie camera (f / 2.0 aperture). The LG K12 Max has a main lens of 13 megapixels (f / 2.2) and a depth sensor of only 2 megapixels (f / 2.4). The front, in turn, has 13 megapixels (f / 2.0).

There is a bonus: the LG photographic set can identify the object to be photographed and makes adjustments to improve the image result – both K Series devices work with Artificial Intelligence (AI) technology.

It is worth noting that Galaxy A10, Galaxy M10, LG K40S and LG K12 Max have drop-shaped notch to house the selfie camera.

Winner: LG K40S

Processor, RAM, battery and storage


The Galaxy M10 leaves the factory with Samsung’s own processor: the Exynos 7870 octa-core with 8 Cortex-A53 cores running up to 1.6 GHz. This is the same chipset as the Galaxy J6, launched two years ago.

On the Galaxy A10 we can find an Exynos 7884 octa-core of 1.6 GHz + 1.35 GHz.

In the K series, both the LG K40S and K12 Max have a Helio P22 processor, from MediaTek, octa-core up to 2.0 GHz.

The Galaxy A10 achieved a score of 89,089 on Antutu’s benchmark tests. The evaluation of the Notebookcheck shows that the performance is not so brilliant, but the device can run games like Arena of Valor and Asphalt 9: Legends even in tall graphics.

Samsung Galaxy A10

The M10 scored 64,371 points in Antutu and presented some choking in alternating applications, mainly in the camera app, photo gallery and other basic tasks. Light games run without difficulties, shows the evaluation of the 360 Gadgets.

The K40S, which obtained 69,000 points in Antutu, may have difficulties in performing basic tasks, such as in the browser, which can crash, as shown in Notebookcheck. The K12 Max received the same score, since it uses the same processor.

In a comparison of Versus processors, from 1 to 100, the Exynos 7884 takes the lead with 78 points, while the Exynos 7870 and Helio P22 draw: 74 points. Versus measures overall performance.

Therefore, the Galaxy A10 performed the best in all tests. In general, we have processors here that perform well in everyday tasks: accessing social networks, streaming applications, e-mails, among others.

LG K12 Max

RAM memory

As for RAM, we don’t have many differences: Galaxy M10, LG K40S and LG K12 Max are 3 GB; the Galaxy A10 is below with 2 GB.


Although the battery capacity does not follow the current trend of 4,000 mAh (or higher), as in some inexpensive Motorola smartphones, the Samsung and LG models deliver a very satisfactory power, even more considering their category.

For you who need battery for the whole day, the Galaxy A10 and Galaxy M10 can be interesting, but it is always good to emphasize that everything will depend on how you use the device in everyday life.

And the same goes for the K Series. However, you will need to plug them in if you abuse video and game consumption.

See capacity below:

  • Galaxy A10: 3,400 mAh
  • Galaxy M10: 3,400 mAh
  • LG K40S: 3,500 mAh
  • LG K12 Max: 3,500 mAh

Internal storage

The Galaxys A10 and M10 are 32 GB and it is still possible to expand to up to 512 GB via MicroSD card.

In the same way, the K40S and K12 Max have 32 GB of internal storage, however the memory can be expanded up to 2 TB with MicroSD.

Winner: Galaxy A10 (processor)

Price and other details

Two Galaxy M10 black and blue

A feature present on LG devices that is worth highlighting here is the dedicated Google Assistant button. In addition, they have military resistance certification (MIL-STD-810G), being resistant to high and low temperature, humidity, temperature shock, vibration and impact.

There is still DTS: X 3D sound, which allows you to have 3D cinema experience, when activated to watch movies and series, for example.

Samsung models work with facial recognition technology to unlock the device. LGs have a fingerprint reader on the back.

Let’s go to prices:

Models Launch Price Price in June 2020 *
Galaxy A10 R $ 999 R $ 999
Galaxy M10 R $ 899 R $ 899
LG K40S R $ 999 $ 750 – $ 800
LG K12 Max R $ 1,299 R $ 960 – R $ 999

* Price ascertained in national e-commerce.

And now? Galaxy A, M or K Series?

It’s your decision! The four devices are great if you just want the basics: making calls, accessing social networks, streaming platforms and playing light games. Reinforcement: light game, ok?

If you are still in doubt, I advise you to consider the brand you are most familiar with. If you prefer Samsung, here it is worth mentioning the Galaxy A10, which was the best-selling smartphone in 2019 among Android devices. Therefore, it is worth talking to someone who already has this device to assess how it behaves.

Connectivity and camera set can help in choosing too. What features do you use frequently? Consider this.

Hope this helps! 🙂

With information: A10, M10, K40S, K12 Max, Versus.

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