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Xiaomi Black Shark 3S 256GB vs Samsung Galaxy A21s 64GB: Which is the best?

Created date: 2020-07-30 15:27:34

Xiaomi Black Shark 3S 256GBSamsung Galaxy A21s 64GB
Xiaomi Black Shark 3S 256GBSamsung Galaxy A21s 64GB

Are you having trouble comparing the differences in features and performance of the "Xiaomi Black Shark 3S 256GB" and "Samsung Galaxy A21s 64GB", or unsure about their differences in ease-of-use, and wondering which to buy? We did a deep-dive comparison of the features, specs, and capabilities of these two smartphone, and provided our rating of which one was a better buy.

Xiaomi Black Shark 3S 256GBSamsung Galaxy A21s 64GB
Xiaomi Black Shark 3S 256GB

Samsung Galaxy A21s 64GB

General rating:
Portabilityrating-image2.7
54/100
rating-image3.0
60/100
Weightrating-image2.3
46/100
rating-image2.7
53/100
Size of screenrating-image4.6
91/100
rating-image4.5
90/100
Screen clarityrating-image4.2
83/100
rating-image2.7
54/100
Battery durationrating-image4.1
82/100
rating-image4.2
83/100
Processing capabilityrating-image4.9
98/100
rating-image4.5
89/100
Memory capacityrating-image5.0
99/100
rating-image4.5
90/100
Storage capacityrating-image4.6
91/100
rating-image3.4
67/100
Rear camera functionrating-image5.0
100/100
rating-image4.9
97/100
Front camera functionrating-image4.1
81/100
rating-image3.6
71/100

Compare Performance and Usability

Size comparison of "Xiaomi Black Shark 3S 256GB" and "Samsung Galaxy A21s 64GB". Which one would you choose?

Your device's size has a huge influence on how easy it is to hold or to operate with one hand. The smaller your device's width, the easier it will be to hold, but you'll also need to take device thickness into account. And when the length and width are both smaller, you'll find that it's much easier for you to operate it one-handed, since your fingers will find it much easier to reach where you want them to. On the other hand, longer lengths and wider widths might lead to devices that are hard to carry in your pocket, bulky even when you keep them in your bag, and all around less portable.

The "Xiaomi Black Shark 3S 256GB" is 77.3mm wide, 168.7mm tall, and 10.4mm thick. The "Samsung Galaxy A21s 64GB" is 75.3mm tall, 163.6mm wide, and 8.9mm thick.

Comparing the width and thickness of the main unit, the "Samsung Galaxy A21s 64GB" is smaller and more compact compared to the "Xiaomi Black Shark 3S 256GB". Therefore, it is easier to grip and hold the "Samsung Galaxy A21s 64GB" than the "Xiaomi Black Shark 3S 256GB". For this reason, the "Samsung Galaxy A21s 64GB" is recommended.

There is no real difference in length or width between the "Xiaomi Black Shark 3S 256GB" and "Samsung Galaxy A21s 64GB", so they are both about the same in terms of usability, ease of carry, and bulkiness. Because of this, it is better to compare them based on other aspects of performance and function.

When comparing their sizes as a whole, there is no real difference between the "Xiaomi Black Shark 3S 256GB"and "Samsung Galaxy A21s 64GB". Thus they are roughly the same in terms of ease of carry and one-handed use. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreDimensions (width x height x thickness)
Xiaomi Black Shark 3S 256GB54/10077.3mm x 168.7mm x 10.4mm
Samsung Galaxy A21s 64GB60/10075.3mm x 163.6mm x 8.9mm

Which one is easier to hold, "Xiaomi Black Shark 3S 256GB" or "Samsung Galaxy A21s 64GB"? Compare weight

The device weight will effect how quickly you tire from holding it, and how much stress is put on your wrist. The lighter it is, the longer you can hold it without feeling tired. Also, less stress on your wrist will make using it easier and more pleasant. Unless the weight is right for you, it might put too much strain on your body and make using it more stressful.

The "Xiaomi Black Shark 3S 256GB" weighs 222.0g. The "Samsung Galaxy A21s 64GB" clocks in at 192.0g. Comparing the weight of the main unit, the "Samsung Galaxy A21s 64GB" is a lighter phone than the "Xiaomi Black Shark 3S 256GB", with a difference of approximately 30g. Therefore, there is less strain on your fingers and wrists even when you use your phone for a long time on the "Samsung Galaxy A21s 64GB" compared to the "Xiaomi Black Shark 3S 256GB". For this reason, the "Samsung Galaxy A21s 64GB" is recommended.

ScoreWeight
Xiaomi Black Shark 3S 256GB46/100222.0g
Samsung Galaxy A21s 64GB53/100192.0g

Which is better in terms of display, "Xiaomi Black Shark 3S 256GB" or "Samsung Galaxy A21s 64GB"?

Screen size influences how well you can control your device, as well as how clear the display is. With a large screen, the text and buttons in apps will display large enough so you'll be less likely to accidentally tap the button next to the one you were aiming for. Plus, you'll be able to enjoy more high-impact visuals for games and movies.

The screen size on the "Xiaomi Black Shark 3S 256GB" is 6.67inch, and 6.5inch on the "Samsung Galaxy A21s 64GB". The screens of the "Xiaomi Black Shark 3S 256GB" and "Samsung Galaxy A21s 64GB" are roughly the same size, and so the ease of pressing app buttons are the same on both devices. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreDisplay size
Xiaomi Black Shark 3S 256GB91/1006.67inch
Samsung Galaxy A21s 64GB90/1006.5inch

Which one has a better display, "Xiaomi Black Shark 3S 256GB" or "Samsung Galaxy A21s 64GB"?

Pixel density influences how nice your device's screen looks, with high pixel densities making screens look more beautiful, and letting you get more out of your games and movies. Plus, the nicer you screen looks, the less strain you'll be putting on your eyes, so you'll tend to be able to use your device for longer before your eyes get tired.

The screen on the "Xiaomi Black Shark 3S 256GB" has a 1080 x 2400 resolution and a pixel density of 394ppi. The "Samsung Galaxy A21s 64GB", on the other hand, has a screen resolution of 720 x 1600 and a pixel density of 269ppi. Comparing the screen definition, the "Xiaomi Black Shark 3S 256GB" has a much higher pixel density than the "Samsung Galaxy A21s 64GB", with a difference of about 125ppi. The screen on the "Xiaomi Black Shark 3S 256GB" is clear and crisp, and puts less strain on the eyes than that of the "Samsung Galaxy A21s 64GB". If you want to choose a smartphone that is gentle on your eyes with a display that shows text and images clearly, we recommend that you buy the "Xiaomi Black Shark 3S 256GB" rather than the "Samsung Galaxy A21s 64GB".

ScorePixel density
Xiaomi Black Shark 3S 256GB83/100394ppi
Samsung Galaxy A21s 64GB54/100269ppi

How is the battery duration of "Xiaomi Black Shark 3S 256GB" different from that of "Samsung Galaxy A21s 64GB" ? See the differences

Battery performance has a big effect on the battery life of your device. However, a high battery capacity doesn't necessarily mean a long battery life. Rather, the rate of power consumption needs to be taken into consideration as well. The larger the screen and the higher the CPU performance, the higher the rate of power consumption on your battery.

The "Xiaomi Black Shark 3S 256GB" has a battery capacity of 4729.0mAh, while the "Samsung Galaxy A21s 64GB" has a 5000.0mAh battery. The batteries of both the "Xiaomi Black Shark 3S 256GB" and "Samsung Galaxy A21s 64GB" perform to the same extent. There is also no difference in the battery capacities of the "Xiaomi Black Shark 3S 256GB" and the "Samsung Galaxy A21s 64GB". Since their battery life is practically identical, it would be better to compare them based on other aspects of performance and function.

ScoreBattery capacity
Xiaomi Black Shark 3S 256GB82/1004729.0mAh
Samsung Galaxy A21s 64GB83/1005000.0mAh

Which is better in terms of CPU function, "Xiaomi Black Shark 3S 256GB" or "Samsung Galaxy A21s 64GB"?

Your CPU's speed will influence the processing power of the applications you run, and together with the number of cores in the CPU, as well as its clock frequency, will determine the processing power available for apps. The higher these performance factors, the smoother your games and apps will run. Conversely, if these factors are too low, your apps and games will be sluggish and struggle to run.

The "Xiaomi Black Shark 3S 256GB" is equipped with a Qualcomm SM8250 Snapdragon 865 5G processor, and its performance speed is 2.84GHz+2.42GHz+1.8GHz×8(8.0-cores). The "Samsung Galaxy A21s 64GB" uses an Exynos 850 CPU that performs at a speed of 2.0GHz+2.0GHz×8(8.0-cores). Comparing their CPU performance, the "Xiaomi Black Shark 3S 256GB" has higher specs than the "Samsung Galaxy A21s 64GB". For this reason, applications run better on the "Xiaomi Black Shark 3S 256GB" compared to the "Samsung Galaxy A21s 64GB", and games run very smoothly. Therefore, the "Xiaomi Black Shark 3S 256GB" is recommended.

ScoreCPU specs
Xiaomi Black Shark 3S 256GB98/1002.84GHz+2.42GHz+1.8GHz×8(8.0-cores)
Samsung Galaxy A21s 64GB89/1002.0GHz+2.0GHz×8(8.0-cores)

How is "Xiaomi Black Shark 3S 256GB" different from "Samsung Galaxy A21s 64GB" in terms of memory capacity?

Your device's multimedia performance and app stability are both influenced by the amount of memory it has available. The more memory, the more apps you can use simultaneously, while keeping everything stable and smooth. Plus, there'll be less chance of animations lagging or apps crashing. You also need to keep in mind that some games won't run at all if there's not enough memory available.

The "Xiaomi Black Shark 3S 256GB" has 12.0GB of memory. The "Samsung Galaxy A21s 64GB", on the other hand, has 6.0GB. Comparing the memory performance, the "Xiaomi Black Shark 3S 256GB" has a larger memory capacity than the "Samsung Galaxy A21s 64GB", with a difference of approximately 6GB. For this reason, multitasking is smoother on the "Xiaomi Black Shark 3S 256GB" than the "Samsung Galaxy A21s 64GB", and applications are less likely to crash. Also, it is more enjoyable to play 3D games and VR on the "Xiaomi Black Shark 3S 256GB". For this reason, the "Xiaomi Black Shark 3S 256GB" is recommended.

ScoreRAM size
Xiaomi Black Shark 3S 256GB99/10012.0GB
Samsung Galaxy A21s 64GB90/1006.0GB

Which has a better storage capacity, "Xiaomi Black Shark 3S 256GB" or "Samsung Galaxy A21s 64GB"?

Storage capacity determines the amount of data you'll be able to save on your device. The more storage you have, the more photos you can take and the more apps you can install. Plus, if your smartphone is compatible with SD cards, then you can increase the amount of available storage. However, SD cards have a slower writespeed, making them less desirable in terms of performance, and users should be aware that it won't be possible to transfer all kinds of data to the card.

The "Xiaomi Black Shark 3S 256GB" has 256.0GB of storage, while the "Samsung Galaxy A21s 64GB" has 64.0GB. In terms of ROM and data storage, the "Xiaomi Black Shark 3S 256GB" has a much larger capacity than the "Samsung Galaxy A21s 64GB", with a difference of about 192GB. The "Xiaomi Black Shark 3S 256GB" can save more photos and keep more apps installed than the "Samsung Galaxy A21s 64GB". If you're searching for a smartphone that can store more data, we recommended that you buy the "Xiaomi Black Shark 3S 256GB" rather than the "Samsung Galaxy A21s 64GB".

ScoreStorage size
Xiaomi Black Shark 3S 256GB91/100256.0GB
Samsung Galaxy A21s 64GB67/10064.0GB

Compare the rear cameras of "Xiaomi Black Shark 3S 256GB" and "Samsung Galaxy A21s 64GB". Which one has better picture quality?

One factor in how well your rear camera (the camera on the back of your device) performs is its megapixel count. With a higher megapixel count, you'll be able to take photos with sharper detail, photos that stay clear and sharp even when printed.

The main camera on the "Xiaomi Black Shark 3S 256GB" has 64.0MP. The "Samsung Galaxy A21s 64GB" has 48.0MP. The rear facing cameras of the "Xiaomi Black Shark 3S 256GB" and "Samsung Galaxy A21s 64GB" have roughly the same performance, so the quality of the photograph and video footage they can capture is around the same. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreRear-camera resolution
Xiaomi Black Shark 3S 256GB100/10064.0MP
Samsung Galaxy A21s 64GB97/10048.0MP

Which has a front camera with better picture quality, "Xiaomi Black Shark 3S 256GB" or "Samsung Galaxy A21s 64GB"?

One indication of how well your forward facing camera (the camera on the same side as your device's screen) performs is how many megapixels it has. More megapixels means you'll be able to take photos with sharper detail, that still look amazing printed out.

The forward-facing camera on the "Xiaomi Black Shark 3S 256GB" has a resolution of 20.0MP. The "Samsung Galaxy A21s 64GB"'s has 13.0MP. Comparing the front-facing camera performance, the number of pixels of the front-facing camera on the "Xiaomi Black Shark 3S 256GB" is higher than the "Samsung Galaxy A21s 64GB", with a difference of approximately 7MP. For this reason, it is possible to take higher quality selfies and make clear prints with the "Xiaomi Black Shark 3S 256GB" than the "Samsung Galaxy A21s 64GB". Therefore, the "Xiaomi Black Shark 3S 256GB" is recommended.

ScoreFront-camera resolution
Xiaomi Black Shark 3S 256GB81/10020.0MP
Samsung Galaxy A21s 64GB71/10013.0MP

Compare Performance Specs

Xiaomi Black Shark 3S 256GBSamsung Galaxy A21s 64GB
ImageXiaomi Black Shark 3S 256GBSamsung Galaxy A21s 64GB
MakerXiaomiSamsung
Release date2020-08-042020-06-19
ColorSky Cloud Black/Crystal BlueBlack/White/Blue/Red
OSAndroidAndroid
Dimensions (width x height x thickness)77.3mm x 168.7mm x 10.4mm75.3mm x 163.6mm x 8.9mm
Weight222.0g192.0g
Display size6.67inch6.5inch
Display typeAMOLEDSuper AMOLED
Screen resolution (width x height)1080 x 2400720 x 1600
Pixel density394ppi269ppi
Battery capacity4729.0mAh5000.0mAh
ChipsetQualcomm SM8250 Snapdragon 865 5GExynos 850
CPU specs2.84GHz+2.42GHz+1.8GHz×8(8.0-cores)2.0GHz+2.0GHz×8(8.0-cores)
RAM size12.0GB6.0GB
Storage size256.0GB64.0GB
Rear-camera resolution64.0MP48.0MP
Front-camera resolution20.0MP13.0MP

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