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Which should you buy, the Xiaomi Mi 9 SE 128GB or Vivo X20 Plus UD 128GB? We offer a thorough comparison of the differences in functions, specifications and performance between the two

Created date: 2019-03-19 06:06:22, Updated date: 2020-04-16 22:20:08

Xiaomi Mi 9 SE 128GBVivo X20 Plus UD 128GB
Xiaomi Mi 9 SE 128GBVivo X20 Plus UD 128GB

Here's our thorough comparison of the difference in performance and function between the "Xiaomi Mi 9 SE 128GB" and "Vivo X20 Plus UD 128GB". Which one should you buy? We'll compare and explain what differs between the "Xiaomi Mi 9 SE 128GB" and "Vivo X20 Plus UD 128GB" in a way that even people who aren't used to choosing between two similar products can understand.

Xiaomi Mi 9 SE 128GBVivo X20 Plus UD 128GB
Xiaomi Mi 9 SE 128GB

Vivo X20 Plus UD 128GB

General rating:
Portabilityrating-image3.6
71/100
rating-image2.7
54/100
Weightrating-image3.4
68/100
rating-image2.9
57/100
Size of screenrating-image4.5
89/100
rating-image4.5
90/100
Screen clarityrating-image4.3
85/100
rating-image4.0
79/100
Battery durationrating-image3.3
66/100
rating-image3.9
78/100
Processing capabilityrating-image4.5
90/100
rating-image4.5
90/100
Memory capacityrating-image4.5
90/100
rating-image3.5
70/100
Storage capacityrating-image4.5
90/100
rating-image4.5
90/100
Rear camera functionrating-image4.9
97/100
rating-image3.0
59/100
Front camera functionrating-image4.1
81/100
rating-image3.5
70/100

Compare Performance and Usability

Size comparison of "Xiaomi Mi 9 SE 128GB" and "Vivo X20 Plus UD 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 wide, 147.5mm tall, and 7.5mm thick. The "Vivo X20 Plus UD 128GB" is 80.0mm tall, 165.2mm wide, and 7.35mm thick.

The "Xiaomi Mi 9 SE 128GB" is also more compact than the "Vivo X20 Plus UD 128GB" in terms of the thickness of the devices. The "Xiaomi Mi 9 SE 128GB" is easier than the "Vivo X20 Plus UD 128GB" to hold with one hand, and you are less likely to accidentally drop it. If you're looking for a smartphone that fits nicely in your hand and can be gripped firmly, we recommend buying the "Xiaomi Mi 9 SE 128GB" rather than the "Vivo X20 Plus UD 128GB".

Comparing the width and height of the main unit, the "Xiaomi Mi 9 SE 128GB" is smaller and more compact than the "Vivo X20 Plus UD 128GB". As a result, the "Xiaomi Mi 9 SE 128GB" is easier to operate with one hand and it is more portable without getting in your way than the "Vivo X20 Plus UD 128GB". Therefore, the "Xiaomi Mi 9 SE 128GB" is recommended.

Comparing the overall sizes, the "Xiaomi Mi 9 SE 128GB" is significantly smaller than the "Vivo X20 Plus UD 128GB". The "Xiaomi Mi 9 SE 128GB" is more convenient than the "Vivo X20 Plus UD 128GB" to use with one hand, and it is less likely to get in your way when not using it. If you prefer a smartphone that is easy to carry around and easy to use with one hand, we recommend that you buy the "Xiaomi Mi 9 SE 128GB" rather than the "Vivo X20 Plus UD 128GB".

ScoreDimensions (width x height x thickness)
Xiaomi Mi 9 SE 128GB71/10070.5mm x 147.5mm x 7.5mm
Vivo X20 Plus UD 128GB54/10080.0mm x 165.2mm x 7.35mm

Which one is easier to hold, "Xiaomi Mi 9 SE 128GB" or "Vivo X20 Plus UD 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 Mi 9 SE 128GB" weighs 155.0g. The "Vivo X20 Plus UD 128GB" clocks in at 181.5g. If you compare the weight of the two, the "Xiaomi Mi 9 SE 128GB" is a considerably lighter smartphone than the "Vivo X20 Plus UD 128GB", with a difference of about 26.5g. Because of this, the "Xiaomi Mi 9 SE 128GB" puts less of a burden on the fingers and wrists than the "Vivo X20 Plus UD 128GB". If you want a smartphone that won't tire your hands out even when using it for a long time, we recommend that you buy the "Xiaomi Mi 9 SE 128GB" rather than the "Vivo X20 Plus UD 128GB".

ScoreWeight
Xiaomi Mi 9 SE 128GB68/100155.0g
Vivo X20 Plus UD 128GB57/100181.5g

Which is better in terms of display, "Xiaomi Mi 9 SE 128GB" or "Vivo X20 Plus UD 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 Mi 9 SE 128GB" is 5.97inch, and 6.43inch on the "Vivo X20 Plus UD 128GB". The screens of the "Xiaomi Mi 9 SE 128GB" and "Vivo X20 Plus UD 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
Xiaomi Mi 9 SE 128GB89/1005.97inch
Vivo X20 Plus UD 128GB90/1006.43inch

Which one has a better display, "Xiaomi Mi 9 SE 128GB" or "Vivo X20 Plus UD 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 Mi 9 SE 128GB" has a 1080 x 2340 resolution and a pixel density of 431ppi. The "Vivo X20 Plus UD 128GB", on the other hand, has a screen resolution of 2160 x 1080 and a pixel density of 375ppi. Comparing the number of pixels on the screen, the pixel density of the "Xiaomi Mi 9 SE 128GB" is higher than the "Vivo X20 Plus UD 128GB", with a difference of approximately 56ppi. Therefor, the "Xiaomi Mi 9 SE 128GB" is better able to display images and videos than the "Vivo X20 Plus UD 128GB", and is easier on the eyes. For this reason, the "Xiaomi Mi 9 SE 128GB" is recommended.

ScorePixel density
Xiaomi Mi 9 SE 128GB85/100431ppi
Vivo X20 Plus UD 128GB79/100375ppi

How is the battery duration of "Xiaomi Mi 9 SE 128GB" different from that of "Vivo X20 Plus UD 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 Mi 9 SE 128GB" has a battery capacity of 3070.0mAh, while the "Vivo X20 Plus UD 128GB" has a 3900.0mAh battery. With regards to battery performance, the "Vivo X20 Plus UD 128GB" has a substantially larger battery capacity than the "Xiaomi Mi 9 SE 128GB", with a difference of 830mAh. The "Vivo X20 Plus UD 128GB" 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 "Vivo X20 Plus UD 128GB" rather than the "Xiaomi Mi 9 SE 128GB".

ScoreBattery capacity
Xiaomi Mi 9 SE 128GB66/1003070.0mAh
Vivo X20 Plus UD 128GB78/1003900.0mAh

Which is better in terms of CPU function, "Xiaomi Mi 9 SE 128GB" or "Vivo X20 Plus UD 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" is equipped with a Qualcomm SDM712 Snapdragon 712 processor, and its performance speed is 2.3GHz+1.7GHz×8(8.0-cores). The "Vivo X20 Plus UD 128GB" uses an Qualcomm 4napdragon 660 CPU that performs at a speed of 2.2GHz×8(8.0-cores). There is also no real discrepancy between the CPU performances of the "Xiaomi Mi 9 SE 128GB" and "Vivo X20 Plus UD 128GB". Because of this, both phones will feel practically identical in terms of smoothness when running apps and ease of game play. This is why it is better to compare them based on other aspects of performance and function.

ScoreCPU specs
Xiaomi Mi 9 SE 128GB90/1002.3GHz+1.7GHz×8(8.0-cores)
Vivo X20 Plus UD 128GB90/1002.2GHz×8(8.0-cores)

How is "Xiaomi Mi 9 SE 128GB" different from "Vivo X20 Plus UD 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 Mi 9 SE 128GB" has 6.0GB of memory. The "Vivo X20 Plus UD 128GB", on the other hand, has 4.0GB. As for memory performance, the "Xiaomi Mi 9 SE 128GB" has a larger memory capacity than the "Vivo X20 Plus UD 128GB", with a difference of about 2GB. The "Xiaomi Mi 9 SE 128GB" has better multitasking, less crashing, and runs 3D games and VR video better than the "Vivo X20 Plus UD 128GB". 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 "Vivo X20 Plus UD 128GB".

ScoreRAM size
Xiaomi Mi 9 SE 128GB90/1006.0GB
Vivo X20 Plus UD 128GB70/1004.0GB

Which has a better storage capacity, "Xiaomi Mi 9 SE 128GB" or "Vivo X20 Plus UD 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 Mi 9 SE 128GB" has 128.0GB of storage, while the "Vivo X20 Plus UD 128GB" has 128.0GB. There is no real difference between the "Xiaomi Mi 9 SE 128GB"and "Vivo X20 Plus UD 128GB" 's ROMs and storage capacities, so both can store roughly the same amount of photographs and apps. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreStorage size
Xiaomi Mi 9 SE 128GB90/100128.0GB
Vivo X20 Plus UD 128GB90/100128.0GB

Compare the rear cameras of "Xiaomi Mi 9 SE 128GB" and "Vivo X20 Plus UD 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 Mi 9 SE 128GB" has 48.0MP. The "Vivo X20 Plus UD 128GB" has 12.0MP. The rear-facing camera of the "Xiaomi Mi 9 SE 128GB" also has a higher pixel count than the "Vivo X20 Plus UD 128GB", with a difference of about 36MP. The "Xiaomi Mi 9 SE 128GB" is more capable than the "Vivo X20 Plus UD 128GB" 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 "Vivo X20 Plus UD 128GB".

ScoreRear-camera resolution
Xiaomi Mi 9 SE 128GB97/10048.0MP
Vivo X20 Plus UD 128GB59/10012.0MP

Which has a front camera with better picture quality, "Xiaomi Mi 9 SE 128GB" or "Vivo X20 Plus UD 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 Mi 9 SE 128GB" has a resolution of 20.0MP. The "Vivo X20 Plus UD 128GB"'s has 12.0MP. The front-facing camera of the "Xiaomi Mi 9 SE 128GB" has a significantly higher number of pixels than the "Vivo X20 Plus UD 128GB", with a difference of about 8MP. Therefore, the "Xiaomi Mi 9 SE 128GB" is more suitable for taking photos and videos than the "Vivo X20 Plus UD 128GB". If you want to take and print high-quality selfies, we recommend buying the "Xiaomi Mi 9 SE 128GB" rather than the "Vivo X20 Plus UD 128GB".

ScoreFront-camera resolution
Xiaomi Mi 9 SE 128GB81/10020.0MP
Vivo X20 Plus UD 128GB70/10012.0MP

Compare Performance Specs

Xiaomi Mi 9 SE 128GBVivo X20 Plus UD 128GB
ImageXiaomi Mi 9 SE 128GBVivo X20 Plus UD 128GB
MakerXiaomiVivo
Release date2019-032018-01
ColorViolet/Blue/GrayBlack
OSAndroidAndroid
Dimensions (width x height x thickness)70.5mm x 147.5mm x 7.5mm80.0mm x 165.2mm x 7.35mm
Weight155.0g181.5g
Display size5.97inch6.43inch
Display typeSuper AMOLEDAMOLED
Screen resolution (width x height)1080 x 23402160 x 1080
Pixel density431ppi375ppi
Battery capacity3070.0mAh3900.0mAh
ChipsetQualcomm SDM712 Snapdragon 712Qualcomm 4napdragon 660
CPU specs2.3GHz+1.7GHz×8(8.0-cores)2.2GHz×8(8.0-cores)
RAM size6.0GB4.0GB
Storage size128.0GB128.0GB
Rear-camera resolution48.0MP12.0MP
Front-camera resolution20.0MP12.0MP

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