The Galaxy A21s is an entry-level machine. Although it is an entry-level machine with lower specifications, it has many "equipped" functions. The entry-level specifications such as using Exynos 850 processor, RAM is 4GB, built-in capacity is 64GB, screen resolution is 1600x720, supports NFC but does not support Samsung Pay (Google Pay can)...etc.

The good equipment includes a 6.5-inch large screen, four ultra-wide-angle and macro lenses, a 5000mAh large battery, a three-card slot that supports memory cards, a 3.5mm headphone jack, and dual account support...etc. Specifications It may not be beautiful on the surface, but there are not too many functional items. Even though there are a lot of functions, because the project is not new, some mid-range mobile phones with better configuration and lower prices last year will face competition.

Exterior

Although the design of Galaxy A21s is well-organized BQ27000EVM, the frame of the screen is slightly thicker, but there are no large bangs (full screen digging holes), glossy coating on the back, and moderate thickness, so that the texture is not too bad. What I borrowed is the black magic stone, which seems to be dark on the back. When the light is swayed, you can see the colors such as the dark blue of the dawn, and the rainbow light from different angles. There is no protective case in the package, but if you find it on the Internet, you don't have to worry about it.

The fingerprint recognition is on the back. Technically, it is not as advanced or beautiful as the fingerprint under the screen, but the response speed is fast, and it can be unlocked without waking up the finger directly. The fingerprint recognition area can also be set to slide down the notification bar, which can easily pull down the quick panel, but it cannot be used as a shutter button to make it easier to take photos with one hand.

The 6.5-inch screen can meet the needs of a large screen. The material is TFT. I am used to OLED and then I feel that it is a little blue and cold (after turning on the blue light filter, it feels milder). In addition, it has no built-in Always on Display or double-tap to wake up. If you want to see the time at any time, you can open it to wake up.

When watching videos, you may not feel the tones are cooler, but because of the screen resolution, you can only watch YouTube videos up to 720p -ic/" title="720p model">720p-ic/" title="720p model ">720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model"> 720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model">720p- ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/ " title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title="720p model">720p-ic/" title ="720p model">720p, at first glance, you will find that the picture quality is not so clear and sharp, because the screen is large, its resolution is about 270ppi, and those who are used to better resolutions should not be used to it.

Although the brightness is not as bright as the A31 or A51 outdoors, it is still ok. You can still browse the map or take pictures, but the brightness is not very bright.

Just look at the four sides, the speaker is on one side at the bottom, the volume is quite loud, and you will be embarrassed to watch the movie outside. In addition, there is also a 3.5mm headphone jack, and there is also a built-in FM radio (elderly favorite) that does not need to be connected to the Internet.

Dual SIM cards and memory cards are independent three-card slots, which can meet the needs of dual SIM cards and memory cards at the same time. However, the A21s does not support LTE CA, so those who care about network speed should pay attention.

A21s has a built-in 64GB capacity. After installing the pre-loaded program, it can use about 47.9GB. It can also be expanded with a memory card, up to 512GB. Because the built-in space is relatively small, after inserting the memory card, the camera storage space can be set to SD card. Save phone space.

Four-lens camera

The Galaxy A21s has four lenses:

The main camera is 48 million pixels (f2.0), 8 million pixels super wide-angle (123 degrees, f2.2), 2 million pixels macro (f2.4), and 2 million pixels depth of field lens.

Although the camera has 48 million pixels, in normal mode, because there are still operations such as HDR, the shot is still 12 million pixels. The camera also has automatic HDR, which allows you to take pictures in backlight or in places with large differences in brightness.

But the built-in modes are still mainstream, such as the 48-megapixel mode, which can take depth-of-field preview photos and macros. You can also add beauty when taking pictures of people or selfies, and it still has some popular modes.

In particular, the A21s does not have AI intelligent scene detection, so for example, when shooting flowers, you should pay attention to the focus and white balance. If you are shooting food, there is a separate food mode that can make the colors brighter.

Just take a look at the photos and videos.

Although the sharpness is average, the color and brightness are comfortable and moderate when shooting scenes such as landscapes, streets, buildings, and food (on the other hand, it is not a bright and pleasing route).

In addition, there is no anti-shake or the like. In cloudy days or indoor macro close-ups, you will find that there is shaking. You should pay attention to it, but there is a macro mode of 3~5 cm, which is still clear for small details.

The edge of the ultra-wide-angle is a little elongated and deformed, but 123 degrees can shoot into larger scenes, it depends on your acceptance.

The best thing about taking pictures during the day is that HDR is often activated. When taking pictures of the sky and signs, you can see that the brightness has been corrected, and the bright and dark parts can be clearly seen. However, the startup rate at night is a bit low, and it is easy to explode when taking a sign or street light. The night photos are a bit like an old mobile phone, when there is no powerful calculation and optimization.

Although the person picking is not very clean, there are some blurred edges, but it is still good for the entry-level machine. The background is blurred and there is no sense of distance, and the uniform blur... Interesting. Although the background of the backlit selfie can be clear, the three-dimensionality and color of the face also change...

electricity

The A21s is equipped with a 5000mAh battery, which is quite large. In addition, the screen resolution is 720p. In theory, it will save power, but with a TFT screen or software, what about the actual use?

The screen brightness is fixed at 50%, and Wi-Fi is turned on to use the Internet, video, and games for an hour. The whole A21s still has 63% of the power, which is very good. Generally, the power consumption of Internet access and watching movies is not large. Playing games with the performance priority setting, although the power consumption is a little bit, the level is still good, and the temperature of the mobile phone does not increase much after one hour of gaming.

Plus 50% of the power is considered bright for indoor use. If the daily use brightness can be lower, the power consumption can be reduced. For general functions, if it is not a large number of photos, there should be no problem with the power for a whole day.

The mobile phone also has a built-in optimized power consumption mode, setting whether to let unused programs sleep, etc. Some programs that do not need to receive notifications in real time or are updated frequently can use this setting to prevent background power consumption from using traffic.

game

The Exynos 850 processor on the Galaxy A21s uses Samsung's 8-nanometer process, and the eight cores are Cortex-A55. Two clocks are relatively high, and six are relatively low. The entry-level machine can also play games. When I tested the power, I played Real Racing 3. Although the whole picture is not as smooth as it is, it is not a big problem, and it can still be played smoothly.

The phone also has a built-in game center, which can take screenshots, videos, block notifications, accidental touches, program shortcuts, etc. during the game, and still allow the game to be undisturbed and record the commentary (but the video is 720p).

Some of the small features of the A21s include: Dual Messenger account support, Dolby stereo sound for headphones, blue light filter, full screen gestures, dark mode, long screen capture, digital health, parental monitoring, optimized memory and Capacity... wait, it should be enough for light daily needs.

And as mentioned above, the battery has good continuous endurance, enough external volume, and there are easy-to-use places such as independent three card slots.

However, it does not support the LTE carrier aggregation specification. It cannot receive 2CA and 3CA where other mobile phones can receive, which may make you feel that the network speed is not as fast as others.

In addition, although the memory card can store photos and videos, the built-in 64GB capacity is really not large. If there are too many installation programs, or the amount of data accumulated by LINE, you may feel that the capacity is tight in a short time. This is what I think of at present, and the two cannot be changed. Shortcomings.

Although it is an entry-level phone, the price of nearly 7000 does not seem to be really low. As mentioned earlier, entry-level phones will be considered. It should be people who have simple needs and do not necessarily need the latest mobile phones. Therefore, after the price reduction The old mid-range models are all its competitors, and the entry-level model is also fiercely competitive.