We tested the Galaxy A51: know the details of the device

To meet the different needs of consumers, Samsung has mobile phones for different segments. One of the brand's successful lines is "A", which has premium intermediate and intermediate handsets.

This year, Samsung launched the Galaxy A51. It's an intermediate segment device with four rear cameras. The Olhar Digital had the chance to test it and counts in detail what it found. Check it out!

Design, finish and canvas

The Galaxy A51 is a very nice device. It even tries to imitate some premium mobile phones in appearance by reflecting the ambient light on your body. Although the effect is beautiful in practice, it is worth noting that most of the device's finish, including the back, is plastic.

The A51's main cameras are the four that are at the back of the device and are very close to your body. In general, the Galaxy A51 is lightweight with its 172 grams, has very thin edges and offers a good footprint.

Its 6.5 inch display uses Super Amoled technology, like most Samsung devices. In addition, it has Gorilla Glass 3 protection against cracks and scratches. The images it presents are well defined, with vivid colors and competent brightness level. The screen houses the front camera and the fingerprint reader, which is very agile.

The sound of the speakers of the device disappoints. Although the volume is relatively high, the audio comes out a little distorted and the bass is very weak.

Performance and autonomy

The Galaxy A51 performs well for simple use, but still makes a few slips. Before we go into detail, check out the phone's data sheet:

  • Exynos 9611 octa-core processor with frequencies up to 2.3 GHz
  • GPU Mali-G72
  • 4 giga of RAM memory
  • 128 giga expandable internal storage with MicroSD card
  • 4 thousand mAh battery

In terms of performance, the device does well for everyday tasks such as surfing the web and using WhatsApp or streaming services such as Spotify, YouTube and Netflix.

Even so, at various times it presents small crashes when the program menus and even the system are triggered. This slowness becomes even more pronounced when some processes are executed in the background.

In games, the Galaxy A51's performance is only satisfactory. In the Olhar Digital tests, the first title executed was the "Otherworld Legends", which, despite being very light, presented some crashes.

Then the "Asphalt 9" was used, which worked well, but also showed choking. Despite these small setbacks, the final experience was not much harmed.


As far as the photos are concerned, the Galaxy A51 comes as a positive surprise, especially when used in bright environments. Before you know the details, check which are the lenses of the device:

  • 48 megapixel wide lens with f/2.0 aperture
  • 12 megapixel ultra-wide lens with f/2.2 aperture
  • 5 megapixel macro lens with f/2.4 aperture
  • 5 megapixel depth lens with f/2.2 aperture
  • 32 megapixel wide lens for seflies with f/2.2 aperture

System and differentials

The Galaxy A51 comes with Android 10 and One UI user interface. In general, the main functions look good and its usability is good. On the negative side, the highlight is the high number of pre-installed applications - gladly most of them can be removed.

Another very practical function for everyday life is the "Edge Screen". It works as a small application drawer and can be triggered by sliding your finger from the right corner of the screen to the center. All the programs that are there can be edited, that is, you can keep only what matters.

One function available on few devices and that can please many users is Digital TV. In Galaxy A51, it is possible to watch open signal channels using the headset as antenna. The application for watching Digital TV works well and even has a function that allows you to record what is being played back.