Samsung Galaxy A21s – Full Specifications, Review, features

Hello and Welcome to Tech Info Diaries blog. My name is Abhay kumar and this is the review of Samsung Galaxy A21s. Today I am tell about the Samsung Galaxy A21s – Full Specifications, Review, featuresSamsung A21s is launching with variant 4GB RAM and 64GB built-in storage. The highlight features of this phone are it’s punch hole cut out, and a quad camera setup at the back. In which there is a 48MP main sensor along with an 8MP ultrawide camera.

Samsung Galaxy A21s - Full Specifications, Review, features | Tech Info Diaries

In the Box:

So let’s go ahead and when you unbox the Galaxy A21s. You will get it’s warranty card with the plastic. With the phone you also get a warranty booklet and user manuals. You don’t get any protective case or pre-applied screen protector And Galaxy A21s handset, you will get a SIM ejector tool, a 15W Samsung Adaptive Fast Charging Power Brick and a USB Type-C cable.


Galaxy A21s has a 6.5 inch PLS TFT Display and HD+ Resolution that is 720 x 1600 whereas the pixel density is 270ppi. This PLS technology is Samsung’s own technology and according to Samsung this technology is superior to IPS because with this you will get 10% more brightness plus some other benefits. I’ve been noticing that a lot of people are doing comparison of IPS and TFT that TFT is an inferior technology. But Samsung claims that PLS technology is a little superior than IPS technology. It has better brightness and viewing angles. And for the purpose of viewing angles.

I did’t find any issues. My single issue with this phone is that there is no Full HD Display here. Even in such a big display, you will not feel any pixelation. When you’ll watch videos you will not feel any quality loss either. But yeah, you might detect a difference if you put a full HD Display next to a 720p Display and look at it very closely then you might feel a slight difference but overall I really liked the display of this phone. There is a hole punch cut-out at the top left of the display which is in trend these days. Overall, if we talk about the quality of the display it seems fine to me but here 720p resolution is a compromise.


Now let’s talk about the cameras setup. On back there is a 48MP main camera with f/2.0 aperture. This is Samsung’s GM2 Sensor. This is the same GM2 sensor which we saw on Redmi Note 9s and Redmi Note 9 Pro. Along with it, there is a 8MP Ultrawide camera in the phone, a 2MP macro camera and a 2MP depth sensor. Whereas, at the front there is a 13MP wide angle selfie shooter with f/2.2 aperture. The maximum video recording resolution of back and front camera is set to 1080p at 30 frames per second.But, there’s no gyro based electronic image stabilization in this phone. Which means whenever you’ll record videos with this phone they will come out very jerky so, I will recommend that if you record videos must use a tripod with it.

Now, if we look at the image samples I really like the image quality. Colour reproduction was very accurate. I didn’t feel any colour shift in reds, yellows, or greens. The dynamic range of the images was also quite good. Even in bright images there’s blue in the sky. And the detail isn’t getting crushed in the shadows. But for me the stand out feature of this camera is it’s clarity. This 48MP camera gives out very detail images. There is just one thing, due to f/2.0 aperture of the main camera and a low light on the sensor, images will come out softer and you might feel aggressive sharpening at places. If we talk about the ultra wide camera, then you surely get an interesting perspective through an ultrawide camera but due to lower mega pixels, the images are softer And if we move towards the selfies, its 13MP Selfie Shooter takes decent selfies in bright lightening but you’ll get softer selfies indoors. Along with that, Samsung’s software processing and computational photography is also superior to other competitors.

Build Quality and Design:

Now if we move towards the build and design, the whole phone is made out of plastic. Therefore, on the basis of material, the phone is very basic and of entry level quality. But I really liked the design language of this phone. Specially I found this white colour quite elegant. This also gives off multi coloured prism like shades which we have seen in its big brothers. And overall, its look resembles them too. I liked the hand feel of this phone. Due to a big battery it also has weight to it and it feels slight chunky in the hand. Power buttons and Volume rockers are on the right side of the phone, SIM tray is on its left side, a noise cancellation mic at its top whereas, at the bottom side there is a headphone jack, USB Type-C Port and a speaker grill.


Moving forwards, if we talk about the specifications and internals of Galaxy A21s so there is an Exynous 850 chipset inside the phone which is based on 8nm technology and a Mali G52 GPU along with it. Phone comes with 4GB RAM and 64GB Built-in Storage and this is eMMC 5.1 Storage type. Talking about the expansion, there is a full dual SIM support in the phone. Meaning, there is a dedicated SD card slot. And you can insert two sims and a micro SD card, altogether in it.


If we talk about the performance of this chip set and this GPU configuration. It gives decent performance. Now if we look at the benchmarks in Geekbench 4 the single core score came at 991 Whereas, multicore score came at 4,673 On the other hand, the score on Antutu came at 114,185. As you can see that this performance, in this price range is quite low as compare to other competitors. Within this price range, among competitors you can get Snapdragon 720G and MediaTek Helio G80 type of processors. Which undoubtedly, has better performance compared to this phone, specially, when you talk about high performance and gaming.

So, if you are looking for a phone, in this range specifically for gaming. So, I will never recommend this phone to you. But this performance, for day-to-day usage your day-to-day apps, social media apps, videoes or movies watching and the regular type of usage done by an average everyday user for them these internals are absolutely fine. You won’t have any issues while watching a movie, or while working on online emails, or using your WhatsApp or Facebook or Instagram and other things like that will not have any issues. Along with it, Exynous 850 is also considered as a very efficient processor. Therefore, while using it will consume less phone battery which will provide you with a longer battery life.

Interface UI:

Moving forward, if we talk about the interface, A21s comes with Android 10 along with Samsung’s own One UI. And Samsung has refined this interface a lot with time. So, I am also using this interface for my day to day usage in my Note 9. And you get the similar software experience in more expensive phones by Samsung. And this is why I consider this interface as a plus point for Samsung in mid range market segment.

Battery and Charger:

Moving forwards, let’s talk about the battery and charger of Galaxy A21s. There is a 5,000 mAh huge battery. Along with that, the phone comes with fast charging support. But this is Samsung’s 15W Adaptive Fast Charging. Most of the competitors, within this price range, are supporting 18W fast charging at this point but I still don’t feel much of a difference between 15W and 18W. And with this 15W fast charging, the phone will take 2 to 2.25 hours to get from empty to full charged. But once the phone is full charged, then with 5,000 mAH, Exynos 850 and due to 720p display you will get a great battery life. This phone will give you 1 to 1.5 days easily, And if your usage is light, it might give you 1.5 to 2 days too. So, if your usage require a longer battery life, whether you travel a lot, or during your day to day usage you don’t get enough time to charge your phone. There this huge battery comes in very handy. Besides that, if you consume a lot of media, watch videos or movies on your phone. This phone can be a good option for that too.


Lastly, I would like to talk about my conclusions. Overall, I really liked Galaxy A21s a lot. Specially, it’s camera. I liked its camera quite a lot in this price range. If you are looking for a phone in mid price range with a good camera. I will recommend you to must try Galaxy A21s. Along with that, due to a huge battery, this can also be a great media content consumption device. And as mentioned before, if your usage is average this phone will work great for you.

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