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Xiaomi Redmi Note 9S 128GB vs Samsung Galaxy A31 128GB: Which is the best?

Created date: 2020-03-23 16:06:11, Updated date: 2020-04-16 20:05:17

Xiaomi Redmi Note 9S 128GBSamsung Galaxy A31 128GB
Xiaomi Redmi Note 9S 128GBSamsung Galaxy A31 128GB

Here's our thorough comparison of the difference in performance and function between the "Xiaomi Redmi Note 9S 128GB" and "Samsung Galaxy A31 128GB". Which one should you buy? We'll compare and explain what differs between the "Xiaomi Redmi Note 9S 128GB" and "Samsung Galaxy A31 128GB" in a way that even people who aren't used to choosing between two similar products can understand.

Xiaomi Redmi Note 9S 128GBSamsung Galaxy A31 128GB
Xiaomi Redmi Note 9S 128GB

Samsung Galaxy A31 128GB

General rating:
Portabilityrating-image2.9
58/100
rating-image3.3
65/100
Weightrating-image2.4
48/100
rating-image2.8
56/100
Size of screenrating-image4.6
91/100
rating-image4.5
90/100
Screen clarityrating-image4.2
83/100
rating-image4.3
85/100
Battery durationrating-image4.2
83/100
rating-image4.2
83/100
Processing capabilityrating-image4.5
90/100
rating-image4.5
89/100
Memory capacityrating-image4.5
90/100
rating-image4.5
90/100
Storage capacityrating-image4.5
90/100
rating-image4.5
90/100
Rear camera functionrating-image4.9
97/100
rating-image4.9
97/100
Front camera functionrating-image3.8
75/100
rating-image4.1
81/100

Compare Performance and Usability

Size comparison of "Xiaomi Redmi Note 9S 128GB" and "Samsung Galaxy A31 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 Redmi Note 9S 128GB" is 76.7mm wide, 165.8mm tall, and 8.8mm thick. The "Samsung Galaxy A31 128GB" is 73.1mm tall, 159.3mm wide, and 8.6mm thick.

Comparing the width and thickness of the body, the "Samsung Galaxy A31 128GB" is smaller and more compact compared to the "Xiaomi Redmi Note 9S 128GB". For that reason, the "Samsung Galaxy A31 128GB" is easier to grip firmly and carry one-handed than the "Xiaomi Redmi Note 9S 128GB". For that reason, we recommend the "Samsung Galaxy A31 128GB".

Comparing the width and thickness of the body, there isn't a large difference in size between the "Xiaomi Redmi Note 9S 128GB" and the "Samsung Galaxy A31 128GB". For that reason their one-handed operability, portability, and bulkiness when carried is about the same. That's why I think it's better to compare them in terms of other aspects of performance and functionality.

Comparing the overall size of the two devices, there isn't a big difference in size between the "Xiaomi Redmi Note 9S 128GB" and the "Samsung Galaxy A31 128GB". For that reason the ease of carrying and use with one hand is about the same for both. That's why it is better to compare the two in terms of other aspects of performance and functionality.

ScoreDimensions (width x height x thickness)
Xiaomi Redmi Note 9S 128GB58/10076.7mm x 165.8mm x 8.8mm
Samsung Galaxy A31 128GB65/10073.1mm x 159.3mm x 8.6mm

Which one is easier to hold, "Xiaomi Redmi Note 9S 128GB" or "Samsung Galaxy A31 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.

The "Xiaomi Redmi Note 9S 128GB" weighs 209.0g. The "Samsung Galaxy A31 128GB" clocks in at 185.0g. Comparing the weight of the two devices, the "Samsung Galaxy A31 128GB" is a lighter smart phone than the "Xiaomi Redmi Note 9S 128GB", with a difference of about 24g. For that reason the "Samsung Galaxy A31 128GB" is a smart phone that is less likely than the "Xiaomi Redmi Note 9S 128GB"to put a burden on your fingers and wrist when used for an extended period. That's why we recommend the "Samsung Galaxy A31 128GB" over the "Xiaomi Redmi Note 9S 128GB".

ScoreWeight
Xiaomi Redmi Note 9S 128GB48/100209.0g
Samsung Galaxy A31 128GB56/100185.0g

Which is better in terms of display, "Xiaomi Redmi Note 9S 128GB" or "Samsung Galaxy A31 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 "Xiaomi Redmi Note 9S 128GB" is 6.67inch, and 6.4inch on the "Samsung Galaxy A31 128GB". Comparing the screen size, there is a negligible difference in screen size between the "Xiaomi Redmi Note 9S 128GB" and the "Samsung Galaxy A31 128GB". As a result, the app buttons on both are equally easy to press. We recommend comparing them based on other aspects of performance and functionality.

ScoreDisplay size
Xiaomi Redmi Note 9S 128GB91/1006.67inch
Samsung Galaxy A31 128GB90/1006.4inch

Which one has a better display, "Xiaomi Redmi Note 9S 128GB" or "Samsung Galaxy A31 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 "Xiaomi Redmi Note 9S 128GB" has a 1080 x 2400 resolution and a pixel density of 394ppi. The "Samsung Galaxy A31 128GB", on the other hand, has a screen resolution of 1080 x 2400 and a pixel density of 411ppi. Comparing the pixel count, the difference in pixel density between the "Xiaomi Redmi Note 9S 128GB" and the "Samsung Galaxy A31 128GB" is negligible. As a result, they are both evenly matched in terms of picture quality and easiness on the eyes. Therefore, we recommend comparing them based on other aspects of performance and functionality.

ScorePixel density
Xiaomi Redmi Note 9S 128GB83/100394ppi
Samsung Galaxy A31 128GB85/100411ppi

How is the battery duration of "Xiaomi Redmi Note 9S 128GB" different from that of "Samsung Galaxy A31 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 "Xiaomi Redmi Note 9S 128GB" has a battery capacity of 5020.0mAh, while the "Samsung Galaxy A31 128GB" has a 5000.0mAh battery. Regarding battery capacity, there is a negligible difference in battery capacity between the "Xiaomi Redmi Note 9S 128GB" and "Samsung Galaxy A31 128GB". Since both have roughly equal battery life, you are better off comparing them based on other aspects of performance and functionality.

ScoreBattery capacity
Xiaomi Redmi Note 9S 128GB83/1005020.0mAh
Samsung Galaxy A31 128GB83/1005000.0mAh

Which is better in terms of CPU function, "Xiaomi Redmi Note 9S 128GB" or "Samsung Galaxy A31 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 Redmi Note 9S 128GB" is equipped with a Qualcomm SM7125 Snapdragon 720G processor, and its performance speed is 2.3GHz+1.8GHz×8(8.0-cores). Comparing CPU performance, there is almost no difference in the specs of the "Xiaomi Redmi Note 9S 128GB" and the "Samsung Galaxy A31 128GB". For that reason the level of smoothness felt when using apps and comfortable handling of games is about the same. For that reason it is better to compare them in terms of other aspects of performance and functionality.

ScoreCPU specs
Xiaomi Redmi Note 9S 128GB90/1002.3GHz+1.8GHz×8(8.0-cores)
Samsung Galaxy A31 128GB89/1002.0GHz+1.7GHz×8(8.0-cores)

How is "Xiaomi Redmi Note 9S 128GB" different from "Samsung Galaxy A31 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 "Xiaomi Redmi Note 9S 128GB" has 6.0GB of memory. The "Samsung Galaxy A31 128GB", on the other hand, has 6.0GB. Comparing the devices in terms of RAM, there is almost no difference in the amount of RAM of the "Xiaomi Redmi Note 9S 128GB" and the "Samsung Galaxy A31 128GB". For that reason they have about the same level of multitasking performance and 3D game and VR smoothness. That's why it is better to make a comparison in terms of other aspects of performance and functionality.

ScoreRAM size
Xiaomi Redmi Note 9S 128GB90/1006.0GB
Samsung Galaxy A31 128GB90/1006.0GB

Which has a better storage capacity, "Xiaomi Redmi Note 9S 128GB" or "Samsung Galaxy A31 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 "Xiaomi Redmi Note 9S 128GB" has 128.0GB of storage, while the "Samsung Galaxy A31 128GB" has 128.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "Xiaomi Redmi Note 9S 128GB" and "Samsung Galaxy A31 128GB". As a result, you can save roughly the same amount of pictures, and install roughly the same amount of applications, on either phone. You are better off comparing them based on other aspects of performance and functionality.

ScoreStorage size
Xiaomi Redmi Note 9S 128GB90/100128.0GB
Samsung Galaxy A31 128GB90/100128.0GB

Compare the rear cameras of "Xiaomi Redmi Note 9S 128GB" and "Samsung Galaxy A31 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 "Xiaomi Redmi Note 9S 128GB" has 48.0MP. The "Samsung Galaxy A31 128GB" has 48.0MP. Comparing rear camera performance, the "Xiaomi Redmi Note 9S 128GB" and "Samsung Galaxy A31 128GB" have approximately the same pixel count. As a result, they can both take pictures and shoot videos of roughly the same quality. Therefore, we recommend comparing the two based on other aspects of performance and functionality.

ScoreRear-camera resolution
Xiaomi Redmi Note 9S 128GB97/10048.0MP
Samsung Galaxy A31 128GB97/10048.0MP

Which has a front camera with better picture quality, "Xiaomi Redmi Note 9S 128GB" or "Samsung Galaxy A31 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 "Xiaomi Redmi Note 9S 128GB" has a resolution of 16.0MP. The "Samsung Galaxy A31 128GB"'s has 20.0MP. Comparing rear camera performance, the front camera of the "Samsung Galaxy A31 128GB" has a higher pixel count than the "Xiaomi Redmi Note 9S 128GB", with a roughly 4MP difference. As a result, the "Samsung Galaxy A31 128GB" is better able to take high quality selfies than the "Xiaomi Redmi Note 9S 128GB", and the pictures will look cleaner when printed. Therefore, we recommend the "Samsung Galaxy A31 128GB".

ScoreFront-camera resolution
Xiaomi Redmi Note 9S 128GB75/10016.0MP
Samsung Galaxy A31 128GB81/10020.0MP

Compare Performance Specs

Xiaomi Redmi Note 9S 128GBSamsung Galaxy A31 128GB
ImageXiaomi Redmi Note 9S 128GBSamsung Galaxy A31 128GB
MakerXiaomiSamsung
Release date2020-04-072020-04-24
ColorAurora Blue/Glacier White/Interstellar GrayPrism Crush Black/Prism Crush Blue/Prism Crush Red/Prism Crush White
OSAndroidAndroid
Dimensions (width x height x thickness)76.7mm x 165.8mm x 8.8mm73.1mm x 159.3mm x 8.6mm
Weight209.0g185.0g
Display size6.67inch6.4inch
Display typeIPS LCDSuper AMOLED
Screen resolution (width x height)1080 x 24001080 x 2400
Pixel density394ppi411ppi
Battery capacity5020.0mAh5000.0mAh
CPU specs2.3GHz+1.8GHz×8(8.0-cores)2.0GHz+1.7GHz×8(8.0-cores)
RAM size6.0GB6.0GB
Storage size128.0GB128.0GB
Rear-camera resolution48.0MP48.0MP
Front-camera resolution16.0MP20.0MP

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