The picture has never really been the strong point of this type of device, but serious progress can be noted, even in these price ranges. The Galaxy A23 5G thus offers a quadruple photo sensor consisting of a 50 Mpx wide-angle module whose lens opens at f / 1.8 and which benefits from – new this year – optical stabilization. It is accompanied by a 5 Mpx ultra wide angle (f / 2.2), a 2 Mpx depth sensor and a 2 Mpx macro module as well (f / 2.4).
Main module: 50 megapixels, f/1.8
The main module uses the technology from pixel binding which allows pixels to be merged (here four-in-one) to capture more light when it runs out. We therefore use images of 12.5 megapixels as standard. The Redmi Note 11 Pro 5G, which this Galaxy A23 5G is compared to, does the same by merging nine pixels into one to deliver 12MP images.
During the day, the two smartphones choose a rather different treatment. The Galaxy A23 5G does quite well and delivers a fairly homogeneous shot. Redmi Note 11 Pro 5G offers a higher level of detail and better sharpness, as can be seen on the faces, the book cover or the playing cards. On the other hand, the general colorimetry tends too much towards red. This is often the case on Xiaomi devices.
Although less accurate, the Galaxy A23 5G image shows a more flattering hue. The Redmi retains our preference, but it is possible to capture compelling images with the Samsung mobile.
In the dark, things go seriously wrong. The Galaxy A23 5G sees the level of detail drop drastically. The South Korean smartphone can’t really transcribe the scene, and the digital smoothing is far too pronounced. Its Chinese rival operates with a significant increase in ISO and boosts contrast to deliver a much better result – despite the appearance of noise.
50 MP mode
It is of course possible to select the 50 megapixel mode. We isolated an area of identical size on each of the images to compare the two definitions.
In a bright environment, we see that the mode makes it possible to recover a little more detail. But it’s not convincing enough to use it constantly… and at the same time messes up the phone’s memory. It gives almost no gain during night shots. We can therefore use it occasionally for recordings that need to be cropped afterwards.
Ultra-wide-angle module: 5 Mpx f/2.2, 123°
Galaxy A23 5G competitors have more defined ultra-wide-angle modules. This is the case with the Redmi Note 11 Pro 5G (8 Mpx).
The performance of this module is far from the same as that of the main sensor. Even during the day, the level of detail is too low and the overall color rather bland. The Redmi far from shines in practice, but delivers a much sharper and more accurate rendering (see the color patterns). Unfortunately, it again has an overly saturated colorimetry with a strong drift towards red.
At night, neither smartphone delivers a really usable image, but the digital smoothing of the Redmi Note 11 Pro 5G is less aggressive. This allows you to better distinguish the elements in the scene, although you should not expect miracles.
Front and video module
In front, the smartphone has an 8 Mpx sensor whose lens opens at f/2.2. Selfies are of decent quality, provided they are well exposed. However, its big brothers (A33, A53) do much better. The footage lacks a bit of detail, but the colorimetry is natural.
Portrait mode works quite well, but will be easily misled if the background is too busy or if there are flyaways. The A23 5G is capable of recording in Full HD at 30 frames per second, which gives a rather convincing result. The images are precise and benefit from a good dynamic range.