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Which should you buy, the OnePlus 7 Pro 256GB or Xiaomi Mi 9 SE 128GB? We offer a thorough comparison of the differences in functions, specifications and performance between the two

Created date: 2019-05-15 06:22:07, Updated date: 2020-04-16 22:35:57

OnePlus 7 Pro 256GBXiaomi Mi 9 SE 128GB
OnePlus 7 Pro 256GBXiaomi Mi 9 SE 128GB

How did the evaluations between the "OnePlus 7 Pro 256GB" and "Xiaomi Mi 9 SE 128GB" differ when we compared the two? We reviewed each of the most commonly scrutinized features. If you are thinking about which smartphone to get, check out this review immediately!

OnePlus 7 Pro 256GBXiaomi Mi 9 SE 128GB
OnePlus 7 Pro 256GB

Xiaomi Mi 9 SE 128GB

General rating:

78/100

(The 3095th of all smartphones)

76.3/100

(The 3183th of all smartphones)

Portability
59/100
71/100
Weight
49/100
68/100
Size of screen
91/100
89/100
Screen clarity
87/100
85/100
Battery duration
80/100
66/100
Processing capability
98/100
90/100
Memory capacity
99/100
90/100
Storage capacity
91/100
90/100
Rear camera function
97/100
97/100
Front camera function
75/100
81/100

Compare Performance and Usability

Size comparison of "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" is 75.9mm wide, 162.6mm tall, and 8.8mm thick. The "Xiaomi Mi 9 SE 128GB" is 70.5mm tall, 147.5mm wide, and 7.5mm thick.

The "Xiaomi Mi 9 SE 128GB" is also more compact than the "OnePlus 7 Pro 256GB" in terms of the thickness of the devices. The "Xiaomi Mi 9 SE 128GB" is easier than the "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB".

Comparing the width and height of the main unit, the "Xiaomi Mi 9 SE 128GB" is smaller and more compact than the "OnePlus 7 Pro 256GB". 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 "OnePlus 7 Pro 256GB". Therefore, the "Xiaomi Mi 9 SE 128GB" is recommended.

Comparing the overall size of the main unit, the "Xiaomi Mi 9 SE 128GB" is smaller than the "OnePlus 7 Pro 256GB". As a result, it is easier to use the "Xiaomi Mi 9 SE 128GB" with one hand compared to the "OnePlus 7 Pro 256GB", and its size makes it more comfortable to carry around. For this reason, the "Xiaomi Mi 9 SE 128GB" is recommended.

ScoreDimensions (width x height x thickness)
OnePlus 7 Pro 256GB59/10075.9mm x 162.6mm x 8.8mm
Xiaomi Mi 9 SE 128GB71/10070.5mm x 147.5mm x 7.5mm

Which one is easier to hold, "OnePlus 7 Pro 256GB" 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.

The "OnePlus 7 Pro 256GB" weighs 206.0g. The "Xiaomi Mi 9 SE 128GB" clocks in at 155.0g. If you compare the weight of the two, the "Xiaomi Mi 9 SE 128GB" is a considerably lighter smartphone than the "OnePlus 7 Pro 256GB", with a difference of about 51g. Because of this, the "Xiaomi Mi 9 SE 128GB" puts less of a burden on the fingers and wrists than the "OnePlus 7 Pro 256GB". 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 "OnePlus 7 Pro 256GB".

ScoreWeight
OnePlus 7 Pro 256GB49/100206.0g
Xiaomi Mi 9 SE 128GB68/100155.0g

Which is better in terms of display, "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" is 6.67inch, and 5.97inch on the "Xiaomi Mi 9 SE 128GB". The screens of the "OnePlus 7 Pro 256GB" 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
OnePlus 7 Pro 256GB91/1006.67inch
Xiaomi Mi 9 SE 128GB89/1005.97inch

Which one has a better display, "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" has a 1440 x 3120 resolution and a pixel density of 515ppi. The "Xiaomi Mi 9 SE 128GB", on the other hand, has a screen resolution of 1080 x 2340 and a pixel density of 431ppi. There is not much of a difference in the pixel resolutions of the "OnePlus 7 Pro 256GB" and "Xiaomi Mi 9 SE 128GB", so they are about the same in terms of clarity of image and gentleness on the eyes. For this reason it is better to compare them based on other aspects of performance and function.

ScorePixel density
OnePlus 7 Pro 256GB87/100515ppi
Xiaomi Mi 9 SE 128GB85/100431ppi

How is the battery duration of "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" has a substantially larger battery capacity than the "Xiaomi Mi 9 SE 128GB", with a difference of 930mAh. The "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" rather than the "Xiaomi Mi 9 SE 128GB".

ScoreBattery capacity
OnePlus 7 Pro 256GB80/1004000.0mAh
Xiaomi Mi 9 SE 128GB66/1003070.0mAh

Which is better in terms of CPU function, "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" is equipped with a Qualcomm SM8150 Snapdragon 855 processor, and its performance speed is 2.84GHz+2.42GHz+1.78GHz×8(8.0-cores). 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). Comparing their CPU performance, the "OnePlus 7 Pro 256GB" has higher specs than the "Xiaomi Mi 9 SE 128GB". For this reason, applications run better on the "OnePlus 7 Pro 256GB" compared to the "Xiaomi Mi 9 SE 128GB", and games run very smoothly. Therefore, the "OnePlus 7 Pro 256GB" is recommended.

ScoreCPU specs
OnePlus 7 Pro 256GB98/1002.84GHz+2.42GHz+1.78GHz×8(8.0-cores)
Xiaomi Mi 9 SE 128GB90/1002.3GHz+1.7GHz×8(8.0-cores)

How is "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" has 12.0GB of memory. The "Xiaomi Mi 9 SE 128GB", on the other hand, has 6.0GB. Comparing the memory performance, the "OnePlus 7 Pro 256GB" has a larger memory capacity than the "Xiaomi Mi 9 SE 128GB", with a difference of approximately 6GB. For this reason, multitasking is smoother on the "OnePlus 7 Pro 256GB" than the "Xiaomi Mi 9 SE 128GB", and applications are less likely to crash. Also, it is more enjoyable to play 3D games and VR on the "OnePlus 7 Pro 256GB". For this reason, the "OnePlus 7 Pro 256GB" is recommended.

ScoreRAM size
OnePlus 7 Pro 256GB99/10012.0GB
Xiaomi Mi 9 SE 128GB90/1006.0GB

Which has a better storage capacity, "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" has 256.0GB of storage, while the "Xiaomi Mi 9 SE 128GB" has 128.0GB. There is no real difference between the "OnePlus 7 Pro 256GB"and "Xiaomi Mi 9 SE 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
OnePlus 7 Pro 256GB91/100256.0GB
Xiaomi Mi 9 SE 128GB90/100128.0GB

Compare the rear cameras of "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" has 48.0MP. The "Xiaomi Mi 9 SE 128GB" has 48.0MP. The rear facing cameras of the "OnePlus 7 Pro 256GB" and "Xiaomi Mi 9 SE 128GB" 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
OnePlus 7 Pro 256GB97/10048.0MP
Xiaomi Mi 9 SE 128GB97/10048.0MP

Which has a front camera with better picture quality, "OnePlus 7 Pro 256GB" 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 "OnePlus 7 Pro 256GB" has a resolution of 16.0MP. 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 "OnePlus 7 Pro 256GB", with a difference of approximately 4MP. For this reason, it is possible to take higher quality selfies and make clear prints with the "Xiaomi Mi 9 SE 128GB" than the "OnePlus 7 Pro 256GB". Therefore, the "Xiaomi Mi 9 SE 128GB" is recommended.

ScoreFront-camera resolution
OnePlus 7 Pro 256GB75/10016.0MP
Xiaomi Mi 9 SE 128GB81/10020.0MP

Compare Performance Specs

OnePlus 7 Pro 256GBXiaomi Mi 9 SE 128GB
ImageOnePlus 7 Pro 256GBXiaomi Mi 9 SE 128GB
MakerOnePlusXiaomi
Release date2019-052019-03
ColorMirror Grey/Almond/Nebula BlueViolet/Blue/Gray
OSAndroidAndroid
Dimensions (width x height x thickness)75.9mm x 162.6mm x 8.8mm70.5mm x 147.5mm x 7.5mm
Weight206.0g155.0g
Display size6.67inch5.97inch
Display typeFluid AMOLEDSuper AMOLED
Screen resolution (width x height)1440 x 31201080 x 2340
Pixel density515ppi431ppi
Battery capacity4000.0mAh3070.0mAh
ChipsetQualcomm SM8150 Snapdragon 855Qualcomm SDM712 Snapdragon 712
CPU specs2.84GHz+2.42GHz+1.78GHz×8(8.0-cores)2.3GHz+1.7GHz×8(8.0-cores)
RAM size12.0GB6.0GB
Storage size256.0GB128.0GB
Rear-camera resolution48.0MP48.0MP
Front-camera resolution16.0MP20.0MP

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