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Which should you buy, the Xiaomi Mi 9 SE 128GB or OnePlus 6T (2018) 256GB? We offer a thorough comparison of the differences in functions, specifications and performance between the two

Created date: 2019-03-19 04:25:44, Updated date: 2020-04-16 20:39:30

Xiaomi Mi 9 SE 128GBOnePlus 6T (2018) 256GB
Xiaomi Mi 9 SE 128GBOnePlus 6T (2018) 256GB

Here's our thorough comparison of the difference in performance and function between the "Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB". Which one should you buy? We'll compare and explain what differs between the "Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB" in a way that even people who aren't used to choosing between two similar products can understand.

Xiaomi Mi 9 SE 128GBOnePlus 6T (2018) 256GB
Xiaomi Mi 9 SE 128GB

OnePlus 6T (2018) 256GB

General rating:
Holding comfortrating-image3.6
70.5mm x 147.5mm x 7.5mm
rating-image3.1
74.8mm x 157.5mm x 8.2mm
Weightrating-image3.4
155.0g
rating-image2.8
185.0g
Screen sizerating-image4.5
5.97inch
rating-image4.5
6.41inch
Display qualityrating-image4.3
431ppi
rating-image4.2
402ppi
Battery liferating-image3.3
3070.0mAh
rating-image3.8
3700.0mAh
Processing powerrating-image4.5
2.3GHz+1.7GHz×8(8.0-cores)
rating-image4.7
2.8GHz+1.7GHz×8(8.0-cores)
Memory capacityrating-image4.5
6.0GB
rating-image4.7
8.0GB
Storage capacityrating-image4.5
128.0GB
rating-image4.6
256.0GB
Rear camera performancerating-image4.9
48.0MP
rating-image3.9
20.0MP
Front camera performancerating-image4.1
20.0MP
rating-image3.8
16.0MP

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", performance comparison

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB" size comparison. Which to choose?

The size of the body has a big influence on the ease of carrying and one-handed operation. The narrower the width, the easier it is to firmly grasp and hold, but you also have to take into account the device's thickness. Also, if the width and height are smaller, its easier to operate one-handed since its easier to extend your fingers. On the contrary, if the width and height are large, it's difficult to fit in your pocket and is bulky even when put in a bag, and portability is impaired.

The "Xiaomi Mi 9 SE 128GB" has a width of 70.5mm, a length of 147.5mm, and a thickness of 7.5mm. Also, the "OnePlus 6T (2018) 256GB" has a width of 74.8mm, a length of 157.5mm, and a thickness of 8.2mm.

Comparing the width and thickness of the body, the "Xiaomi Mi 9 SE 128GB" is smaller and more compact compared to the "OnePlus 6T (2018) 256GB". For that reason, the "Xiaomi Mi 9 SE 128GB" is easier to grip firmly and carry one-handed than the "OnePlus 6T (2018) 256GB". For that reason, we recommend the "Xiaomi Mi 9 SE 128GB".

Comparing the width and thickness of the body, there isn't a large difference in size between the "Xiaomi Mi 9 SE 128GB" and the "OnePlus 6T (2018) 256GB". 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, the "Xiaomi Mi 9 SE 128GB" has a large size compared to the "OnePlus 6T (2018) 256GB". For that reason the "Xiaomi Mi 9 SE 128GB" is a size that is easier to use in one hand and comfortably carry than the "OnePlus 6T (2018) 256GB". That's why we recommend the "Xiaomi Mi 9 SE 128GB".

ScoreDimensions (width x height x thickness)
Xiaomi Mi 9 SE 128GB71/10070.5mm x 147.5mm x 7.5mm
OnePlus 6T (2018) 256GB62/10074.8mm x 157.5mm x 8.2mm

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", which is more comfortable to hold? Weight comparison

The weight of the device affects hand fatigue and the burden placed upon the wrist. The lighter it is, the longer you'll be able to operate the device without tiring. Also, if the burden placed on the wrist is lower, you'll be able to use the device more comfortably. However if the weight isn't right for you, it could place more of a burden on your body, causing you to feel stress.

The weight of the "Xiaomi Mi 9 SE 128GB" is about 155.0g, and the weight of the "OnePlus 6T (2018) 256GB" is about 185.0g. Comparing the weight of the two devices, the "Xiaomi Mi 9 SE 128GB" is a considerably lighter smart phone than the "OnePlus 6T (2018) 256GB", and there is a difference of about 30g. In terms of the burden placed upon your fingers and wrist, the "Xiaomi Mi 9 SE 128GB" is superior to the "OnePlus 6T (2018) 256GB". If you are going for a smart phone that won't lead to hand fatigue even after extended use, and is less likely to place a burden on your fingers, we recommend purchasing the "Xiaomi Mi 9 SE 128GB" over the "OnePlus 6T (2018) 256GB".

ScoreWeight
Xiaomi Mi 9 SE 128GB68/100155.0g
OnePlus 6T (2018) 256GB56/100185.0g

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", whose display is easier to use?

The size of the screen affects usability and screen visibility. A larger screen means larger letters and buttons on apps, so the user is less likely to tap adjacent buttons by mistake. In addition, the user can enjoy a more intense experience when playing games and watching videos.

The "Xiaomi Mi 9 SE 128GB" has a 5.97inch display. Also, the "OnePlus 6T (2018) 256GB" has a 6.41inch display. Comparing the screen size, there is a negligible difference in screen size between the "Xiaomi Mi 9 SE 128GB" and the "OnePlus 6T (2018) 256GB". 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 Mi 9 SE 128GB89/1005.97inch
OnePlus 6T (2018) 256GB90/1006.41inch

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", which has a clearer display?

Pixel density affects picture quality, and the higher the pixel density, the better the picture quality, which means the user can gain more enjoyment from games and videos. In addition, higher picture quality decreases eyestrain, which means that the user will experience less eye fatigue after prolonged use.

The resolution on the "Xiaomi Mi 9 SE 128GB" is 1080 x 2340, and pixel density is 431ppi. Also, the resolution on the "OnePlus 6T (2018) 256GB" is 1080 x 2340, and pixel density is 402ppi. Comparing the pixel count, the difference in pixel density between the "Xiaomi Mi 9 SE 128GB" and the "OnePlus 6T (2018) 256GB" 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 Mi 9 SE 128GB85/100431ppi
OnePlus 6T (2018) 256GB84/100402ppi

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", a summary of the differences in battery life

Battery performance greatly affects battery life, but greater battery capacity does not necessarily mean greater battery life, since battery efficiency should also be considered. Bigger screens and higher CPU performance will mean the batteries are depleted more quickly.

The "Xiaomi Mi 9 SE 128GB" is 3070.0mAh, and the "OnePlus 6T (2018) 256GB" is 3700.0mAh. Regarding battery capacity, the "OnePlus 6T (2018) 256GB" has greater battery capacity than the "Xiaomi Mi 9 SE 128GB", with a 630mAh difference. If battery is a priority, then the "OnePlus 6T (2018) 256GB" is recommended over the "Xiaomi Mi 9 SE 128GB".

ScoreBattery capacity
Xiaomi Mi 9 SE 128GB66/1003070.0mAh
OnePlus 6T (2018) 256GB75/1003700.0mAh

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", which has better CPU?

CPU performance affects the ability to process programs, and the ability to process programs is determined by the product of the number of cores in the CPU and the CPU frequency. The higher this performance is, the more smoothly apps and games will run, and with low performance apps and games become heavy and stress is experienced.

The "Xiaomi Mi 9 SE 128GB"'s CPU is a Qualcomm SDM712 Snapdragon 712, with performance measured at 2.3GHz+1.7GHz×8(8.0-cores). Also, the "OnePlus 6T (2018) 256GB"'s CPU is a Qualcomm SDM845 Snapdragon 845, with performance measured at 2.8GHz+1.7GHz×8(8.0-cores). Comparing CPU performance, there is almost no difference in the specs of the "Xiaomi Mi 9 SE 128GB" and the "OnePlus 6T (2018) 256GB". 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 Mi 9 SE 128GB90/1002.3GHz+1.7GHz×8(8.0-cores)
OnePlus 6T (2018) 256GB94/1002.8GHz+1.7GHz×8(8.0-cores)

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", what's the difference in memory capacity?

RAM affects multitasking ability and the stability of apps. The larger the amount of RAM is, the more stability there will be even in situations where multiple apps are running simultaneously, allowing for comfortable use. In addition, animation will be more smooth, and apps will be less likely to freeze or crash. Also, without sufficient RAM, there are games you won't be able to run, so it is necessary to be careful.

The weight of the "Xiaomi Mi 9 SE 128GB" is 6.0GB and the weight of the "OnePlus 6T (2018) 256GB" is 8.0GB. Comparing the devices in terms of RAM, there is almost no difference in the amount of RAM of the "Xiaomi Mi 9 SE 128GB" and the "OnePlus 6T (2018) 256GB". 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 Mi 9 SE 128GB90/1006.0GB
OnePlus 6T (2018) 256GB93/1008.0GB

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", which has more data storage?

Storage capacity affects the amount of data that is capable of being stored. The larger the storage capacity, the more pictures you can take and the more applications you can install. In addition, if your smartphone accepts SD cards, then you can increase its storage capacity. However, there are performance related drawbacks, including a slower data transfer rate than the primary memory, and you cannot transfer all your data on the card, so be warned.

The data storage capacity of the "Xiaomi Mi 9 SE 128GB" is 128.0GB. Also the "OnePlus 6T (2018) 256GB" is 256.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB". 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 Mi 9 SE 128GB90/100128.0GB
OnePlus 6T (2018) 256GB91/100256.0GB

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB" rear camera performance comparison. Which has a higher resolution?

One factor that determines the performance of the exterior camera located on the back of the device (the rear/back camera) is the pixel count. The larger the pixel count, the higher the resolution of the pictures you can take, and the cleaner the pictures will look when printed.

"Xiaomi Mi 9 SE 128GB" has a 48.0MP main camera. Also, "OnePlus 6T (2018) 256GB" has a 20.0MP main camera. Comparing rear camera performance, the "Xiaomi Mi 9 SE 128GB" has a much higher pixel count compared to the "OnePlus 6T (2018) 256GB", with a roughly 28MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "Xiaomi Mi 9 SE 128GB" is superior to the "OnePlus 6T (2018) 256GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "Xiaomi Mi 9 SE 128GB" over the "OnePlus 6T (2018) 256GB".

ScoreRear-camera resolution
Xiaomi Mi 9 SE 128GB97/10048.0MP
OnePlus 6T (2018) 256GB78/10020.0MP

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", whose front camera has a better picture quality?

One factor that determines the performance of the exterior camera located on the front of the device (the in/front camera) is the pixel count. The larger the pixel count, the higher the resolution of the pictures you can take, and the cleaner the pictures will look when printed.

"Xiaomi Mi 9 SE 128GB" has an 20.0MP front camera and "OnePlus 6T (2018) 256GB" has an 16.0MP front camera. Comparing rear camera performance, the front camera of the "Xiaomi Mi 9 SE 128GB" has a higher pixel count than the "OnePlus 6T (2018) 256GB", with a roughly 4MP difference. As a result, the "Xiaomi Mi 9 SE 128GB" is better able to take high quality selfies than the "OnePlus 6T (2018) 256GB", and the pictures will look cleaner when printed. Therefore, we recommend the "Xiaomi Mi 9 SE 128GB".

ScoreFront-camera resolution
Xiaomi Mi 9 SE 128GB81/10020.0MP
OnePlus 6T (2018) 256GB75/10016.0MP

"Xiaomi Mi 9 SE 128GB" and "OnePlus 6T (2018) 256GB", performance comparison by specification sheet

Xiaomi Mi 9 SE 128GBOnePlus 6T (2018) 256GB
ImageXiaomi Mi 9 SE 128GBOnePlus 6T (2018) 256GB
MakerXiaomiOnePlus
Release date2019-032018-11
ColorViolet/Blue/GrayThunder Purple/Mirror Black/Midnight Black
OSAndroidAndroid
Dimensions (width x height x thickness)70.5mm x 147.5mm x 7.5mm74.8mm x 157.5mm x 8.2mm
Weight155.0g185.0g
Display size5.97inch6.41inch
Display typeSuper AMOLEDOptic AMOLED
Screen resolution (width x height)1080 x 23401080 x 2340
Pixel density431ppi402ppi
Battery capacity3070.0mAh3700.0mAh
ChipsetQualcomm SDM712 Snapdragon 712Qualcomm SDM845 Snapdragon 845
CPU specs2.3GHz+1.7GHz×8(8.0-cores)2.8GHz+1.7GHz×8(8.0-cores)
RAM size6.0GB8.0GB
Storage size128.0GB256.0GB
Rear-camera resolution48.0MP20.0MP
Front-camera resolution20.0MP16.0MP

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