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Samsung Galaxy A21 32GB vs Xiaomi Mi 9 SE 128GB: Full Comparison!

Created date: 2020-04-07 17:26:15, Updated date: 2020-04-16 21:47:16

Samsung Galaxy A21 32GBXiaomi Mi 9 SE 128GB
Samsung Galaxy A21 32GBXiaomi Mi 9 SE 128GB

Here's our thorough comparison of the difference in performance and function between the "Samsung Galaxy A21 32GB" and "Xiaomi Mi 9 SE 128GB". Which one should you buy? We'll compare and explain what differs between the "Samsung Galaxy A21 32GB" and "Xiaomi Mi 9 SE 128GB" in a way that even people who aren't used to choosing between two similar products can understand.

Samsung Galaxy A21 32GBXiaomi Mi 9 SE 128GB
Samsung Galaxy A21 32GB

Xiaomi Mi 9 SE 128GB

General rating:

63.5/100

(The 3621th of all smartphones)

76.3/100

(The 3183th of all smartphones)

Portability
- /100
71/100
Weight
- /100
68/100
Size of screen
90/100
89/100
Screen clarity
54/100
85/100
Battery duration
80/100
66/100
Processing capability
- /100
90/100
Memory capacity
60/100
90/100
Storage capacity
55/100
90/100
Rear camera function
68/100
97/100
Front camera function
71/100
81/100

Compare Performance and Usability

Size comparison of "Samsung Galaxy A21 32GB" and "Xiaomi Mi 9 SE 128GB". 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 Mi 9 SE 128GB" is 70.5mm tall, 147.5mm wide, and 7.5mm thick.

ScoreDimensions (width x height x thickness)
Samsung Galaxy A21 32GB - /100
Xiaomi Mi 9 SE 128GB71/10070.5mm x 147.5mm x 7.5mm

Which one is easier to hold, "Samsung Galaxy A21 32GB" or "Xiaomi Mi 9 SE 128GB"? 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.

ScoreWeight
Samsung Galaxy A21 32GB - /100
Xiaomi Mi 9 SE 128GB68/100155.0g

Which is better in terms of display, "Samsung Galaxy A21 32GB" or "Xiaomi Mi 9 SE 128GB"?

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 "Samsung Galaxy A21 32GB" is 6.5inch, and 5.97inch on the "Xiaomi Mi 9 SE 128GB". The screens of the "Samsung Galaxy A21 32GB" and "Xiaomi Mi 9 SE 128GB" 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
Samsung Galaxy A21 32GB90/1006.5inch
Xiaomi Mi 9 SE 128GB89/1005.97inch

Which one has a better display, "Samsung Galaxy A21 32GB" or "Xiaomi Mi 9 SE 128GB"?

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 "Samsung Galaxy A21 32GB" has a 720 x 1600 resolution and a pixel density of 269ppi. The "Xiaomi Mi 9 SE 128GB", on the other hand, has a screen resolution of 1080 x 2340 and a pixel density of 431ppi. Comparing the screen definition, the "Xiaomi Mi 9 SE 128GB" has a much higher pixel density than the "Samsung Galaxy A21 32GB", with a difference of about 162ppi. The screen on the "Xiaomi Mi 9 SE 128GB" is clear and crisp, and puts less strain on the eyes than that of the "Samsung Galaxy A21 32GB". 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 Mi 9 SE 128GB" rather than the "Samsung Galaxy A21 32GB".

ScorePixel density
Samsung Galaxy A21 32GB54/100269ppi
Xiaomi Mi 9 SE 128GB85/100431ppi

How is the battery duration of "Samsung Galaxy A21 32GB" different from that of "Xiaomi Mi 9 SE 128GB" ? 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 "Samsung Galaxy A21 32GB" has a battery capacity of 4000.0mAh, while the "Xiaomi Mi 9 SE 128GB" has a 3070.0mAh battery. With regards to battery performance, the "Samsung Galaxy A21 32GB" has a substantially larger battery capacity than the "Xiaomi Mi 9 SE 128GB", with a difference of 930mAh. The "Samsung Galaxy A21 32GB" can be used without charging for a longer time than the "Xiaomi Mi 9 SE 128GB", so it can be used when out and about. If you want a smartphone with a longer-lasting battery, we recommend that you buy the "Samsung Galaxy A21 32GB" rather than the "Xiaomi Mi 9 SE 128GB".

ScoreBattery capacity
Samsung Galaxy A21 32GB80/1004000.0mAh
Xiaomi Mi 9 SE 128GB66/1003070.0mAh

Which is better in terms of CPU function, "Samsung Galaxy A21 32GB" or "Xiaomi Mi 9 SE 128GB"?

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 Mi 9 SE 128GB" uses an Qualcomm SDM712 Snapdragon 712 CPU that performs at a speed of 2.3GHz+1.7GHz×8(8.0-cores).

ScoreCPU specs
Samsung Galaxy A21 32GB - /100
Xiaomi Mi 9 SE 128GB90/1002.3GHz+1.7GHz×8(8.0-cores)

How is "Samsung Galaxy A21 32GB" different from "Xiaomi Mi 9 SE 128GB" 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 "Samsung Galaxy A21 32GB" has 3.0GB of memory. The "Xiaomi Mi 9 SE 128GB", on the other hand, has 6.0GB. As for memory performance, the "Xiaomi Mi 9 SE 128GB" has a larger memory capacity than the "Samsung Galaxy A21 32GB", with a difference of about 3GB. The "Xiaomi Mi 9 SE 128GB" has better multitasking, less crashing, and runs 3D games and VR video better than the "Samsung Galaxy A21 32GB". If you're looking for a smartphone that will remain stable even when you are using multiple apps at the same time, and which will allow you to play 3D games and VR video comfortably, we recommend that you buy the "Xiaomi Mi 9 SE 128GB" rather than the "Samsung Galaxy A21 32GB".

ScoreRAM size
Samsung Galaxy A21 32GB60/1003.0GB
Xiaomi Mi 9 SE 128GB90/1006.0GB

Which has a better storage capacity, "Samsung Galaxy A21 32GB" or "Xiaomi Mi 9 SE 128GB"?

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 "Samsung Galaxy A21 32GB" has 32.0GB of storage, while the "Xiaomi Mi 9 SE 128GB" has 128.0GB. In terms of ROM and data storage, the "Xiaomi Mi 9 SE 128GB" has a much larger capacity than the "Samsung Galaxy A21 32GB", with a difference of about 96GB. The "Xiaomi Mi 9 SE 128GB" can save more photos and keep more apps installed than the "Samsung Galaxy A21 32GB". If you're searching for a smartphone that can store more data, we recommended that you buy the "Xiaomi Mi 9 SE 128GB" rather than the "Samsung Galaxy A21 32GB".

ScoreStorage size
Samsung Galaxy A21 32GB55/10032.0GB
Xiaomi Mi 9 SE 128GB90/100128.0GB

Compare the rear cameras of "Samsung Galaxy A21 32GB" and "Xiaomi Mi 9 SE 128GB". 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 "Samsung Galaxy A21 32GB" has 16.0MP. The "Xiaomi Mi 9 SE 128GB" has 48.0MP. The rear-facing camera of the "Xiaomi Mi 9 SE 128GB" also has a higher pixel count than the "Samsung Galaxy A21 32GB", with a difference of about 32MP. The "Xiaomi Mi 9 SE 128GB" is more capable than the "Samsung Galaxy A21 32GB" of taking high-definition photos and videos, and produces better results when printing out the photos you have taken. If you want a smartphone that is designed for video and photography, we recommend buying the "Xiaomi Mi 9 SE 128GB" rather than the "Samsung Galaxy A21 32GB".

ScoreRear-camera resolution
Samsung Galaxy A21 32GB68/10016.0MP
Xiaomi Mi 9 SE 128GB97/10048.0MP

Which has a front camera with better picture quality, "Samsung Galaxy A21 32GB" or "Xiaomi Mi 9 SE 128GB"?

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 "Samsung Galaxy A21 32GB" has a resolution of 13.0MP. The "Xiaomi Mi 9 SE 128GB"'s has 20.0MP. Comparing the front-facing camera performance, the number of pixels of the front-facing camera on the "Xiaomi Mi 9 SE 128GB" is higher than the "Samsung Galaxy A21 32GB", with a difference of approximately 7MP. For this reason, it is possible to take higher quality selfies and make clear prints with the "Xiaomi Mi 9 SE 128GB" than the "Samsung Galaxy A21 32GB". Therefore, the "Xiaomi Mi 9 SE 128GB" is recommended.

ScoreFront-camera resolution
Samsung Galaxy A21 32GB71/10013.0MP
Xiaomi Mi 9 SE 128GB81/10020.0MP

Compare Performance Specs

Samsung Galaxy A21 32GBXiaomi Mi 9 SE 128GB
ImageSamsung Galaxy A21 32GBXiaomi Mi 9 SE 128GB
MakerSamsungXiaomi
Release date2020-04-082019-03
ColorBlackViolet/Blue/Gray
OSAndroidAndroid
Display size6.5inch5.97inch
Display typeSuper AMOLEDSuper AMOLED
Screen resolution (width x height)720 x 16001080 x 2340
Pixel density269ppi431ppi
Battery capacity4000.0mAh3070.0mAh
RAM size3.0GB6.0GB
Storage size32.0GB128.0GB
Rear-camera resolution16.0MP48.0MP
Front-camera resolution13.0MP20.0MP

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