Should you buy OnePlus 7T or Xiaomi Mi 9? Compare the differences in functions and specifications/performances thoroughly

Created date: 09/26/2019, 20:12:01, Updated date: 04/16/2020, 08:01:37

OnePlus 7TXiaomi Mi 9
OnePlus 7TXiaomi Mi 9

How did the evaluations between the OnePlus 7T and Xiaomi Mi 9 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 7TXiaomi Mi 9
OnePlus 7T

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Xiaomi Mi 9

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General rating:

80.7/100

(The 39th of all smartphones)

81/100

(The 30th of all smartphones)

Portability
63/100
63/100
Weight
54/100
61/100
Size of screen
90/100
90/100
Screen clarity
84/100
84/100
Battery duration
77/100
69/100
Processing capability
96/100
96/100
Memory capacity
93/100
93/100
Storage capacity
91/100
91/100
Rear camera function
97/100
97/100
Front camera function
75/100
81/100

Compare Performance and Usability

Size comparison of OnePlus 7T and Xiaomi Mi 9. 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 7T is 2.9 inches (74.4 mm) wide, 6.3 inches (160.9 mm) tall, and 0.3 inches (8.1 mm) thick. The Xiaomi Mi 9 is 2.9 inches (74.7 mm) tall, 6.2 inches (157.5 mm) wide, and 0.3 inches (7.6 mm) thick.

There is no real difference between the OnePlus 7T and Xiaomi Mi 9 when comparing their width, thickness, and slimness; they are both around the same in terms of one-handed ease of use and carry. Because of this, it is better to compare them based on other aspects of performance and function.

There is no real difference in length or width between the OnePlus 7T and Xiaomi Mi 9, so they are both about the same in terms of usability, ease of carry, and bulkiness. Because of this, it is better to compare them based on other aspects of performance and function.

When comparing their sizes as a whole, there is no real difference between the OnePlus 7Tand Xiaomi Mi 9. Thus they are roughly the same in terms of ease of carry and one-handed use. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreDimensions (width x height x thickness)
OnePlus 7T63/1002.9 inches (74.4 mm) x 6.3 inches (160.9 mm) x 0.3 inches (8.1 mm)
Xiaomi Mi 963/1002.9 inches (74.7 mm) x 6.2 inches (157.5 mm) x 0.3 inches (7.6 mm)

Which one is easier to hold, OnePlus 7T or Xiaomi Mi 9? 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 7T weighs 190 oz (190 g). The Xiaomi Mi 9 clocks in at 173 oz (173 g). Comparing the weight of the main unit, the Xiaomi Mi 9 is a lighter phone than the OnePlus 7T, with a difference of approximately 173 oz (17 g). Therefore, there is less strain on your fingers and wrists even when you use your phone for a long time on the Xiaomi Mi 9 compared to the OnePlus 7T. For this reason, the Xiaomi Mi 9 is recommended.

ScoreWeight
OnePlus 7T54/100190 oz (190 g)
Xiaomi Mi 961/100173 oz (173 g)

Which is better in terms of display, OnePlus 7T or Xiaomi Mi 9?

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 7T is 6.55 inch, and 6.39 inch on the Xiaomi Mi 9. The screens of the OnePlus 7T and Xiaomi Mi 9 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 7T90/1006.55 inch
Xiaomi Mi 990/1006.39 inch

Which one has a better display, OnePlus 7T or Xiaomi Mi 9?

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 7T has a 1080 x 2400 resolution and a pixel density of 401 ppi. The Xiaomi Mi 9, on the other hand, has a screen resolution of 1080 x 2340 and a pixel density of 403 ppi. There is not much of a difference in the pixel resolutions of the OnePlus 7T and Xiaomi Mi 9, 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 7T84/100401 ppi
Xiaomi Mi 984/100403 ppi

How is the battery duration of OnePlus 7T different from that of Xiaomi Mi 9 ? 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 7T has a battery capacity of 3800 mAh, while the Xiaomi Mi 9 has a 3300 mAh battery. Regarding the battery performance, the OnePlus 7T has a larger battery capacity than the Xiaomi Mi 9, with a difference of 500 mAh. If you are choosing based on the battery, the OnePlus 7T is recommended over the Xiaomi Mi 9.

ScoreBattery capacity
OnePlus 7T77/1003800 mAh
Xiaomi Mi 969/1003300 mAh

Which is better in terms of CPU function, OnePlus 7T or Xiaomi Mi 9?

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 7T is equipped with a Qualcomm SM8150 Snapdragon 855+ processor, and its performance speed is 2.96GHz+2.42GHz+1.78GHz×8(OctaCore). The Xiaomi Mi 9 uses an Qualcomm SM8150 Snapdragon 855 CPU that performs at a speed of 2.84GHz+2.42GHz+1.78GHz×8(OctaCore). There is also no real discrepancy between the CPU performances of the OnePlus 7T and Xiaomi Mi 9. 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
OnePlus 7T96/1002.96GHz+2.42GHz+1.78GHz×8(OctaCore)
Xiaomi Mi 996/1002.84GHz+2.42GHz+1.78GHz×8(OctaCore)

How is OnePlus 7T different from Xiaomi Mi 9 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 7T has 8GB of memory. The Xiaomi Mi 9, on the other hand, has 8GB. Memory performance is roughly the same for both the OnePlus 7T and Xiaomi Mi 9; as a result, multitasking, playing 3D games, and using VR feels the same on both devices. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreRAM size
OnePlus 7T93/1008GB
Xiaomi Mi 993/1008GB

Which has a better storage capacity, OnePlus 7T or Xiaomi Mi 9?

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 7T has 256GB of storage, while the Xiaomi Mi 9 has 256GB. There is no real difference between the OnePlus 7TandXiaomi Mi 9'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 7T91/100256GB
Xiaomi Mi 991/100256GB

Compare the rear cameras of OnePlus 7T and Xiaomi Mi 9. 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 7T has 48 MP. The Xiaomi Mi 9 has 48 MP. The rear facing cameras of the OnePlus 7T and Xiaomi Mi 9 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 7T97/10048 MP
Xiaomi Mi 997/10048 MP

Which has a front camera with better picture quality, OnePlus 7T or Xiaomi Mi 9?

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 7T has a resolution of 16 MP. The Xiaomi Mi 9's has 20 MP. Comparing the front-facing camera performance, the number of pixels of the front-facing camera on the Xiaomi Mi 9 is higher than the OnePlus 7T, with a difference of approximately 4 MP. For this reason, it is possible to take higher quality selfies and make clear prints with the Xiaomi Mi 9 than the OnePlus 7T. Therefore, the Xiaomi Mi 9 is recommended.

ScoreFront-camera resolution
OnePlus 7T75/10016 MP
Xiaomi Mi 981/10020 MP

Detailed comparison of OnePlus 7T and Xiaomi Mi 9

Comparison for general rating

ImageProduct nameReviewgeneral rating

OnePlus 7T

Score

80.7Color:Frosted Silver/Glacier Blue, Dimensions (width x height x thickness):2.9 inches (74.4 mm) x 6.3 inches (160.9 mm) x 0.3 inches (8.1 mm), Weight:190 oz (190 g), Display type:Fluid AMOLED, Screen resolution (width x height):1080 x 2400, Pixel density:401 ppi, Display size:6.55 inch, OS:Android

Xiaomi Mi 9

Score

81.0Color:Lavender Violet/Ocean Blue/Piano Black, Dimensions (width x height x thickness):2.9 inches (74.7 mm) x 6.2 inches (157.5 mm) x 0.3 inches (7.6 mm), Weight:173 oz (173 g), Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:403 ppi, Display size:6.39 inch, OS:Android

Comparison for body size

ImageProduct nameReviewbody size

OnePlus 7T

Score

52.0

Xiaomi Mi 9

Score

53.0

Comparison for body weight

ImageProduct nameReviewbody weight

OnePlus 7T

Score

54.4

Xiaomi Mi 9

Score

61.2

Comparison for screen size

ImageProduct nameReviewscreen size

OnePlus 7T

Score

90.9

Xiaomi Mi 9

Score

90.7

Comparison for screen resolution

ImageProduct nameReviewscreen resolution

OnePlus 7T

Score

76.2

Xiaomi Mi 9

Score

75.3

Comparison for GPU performance

ImageProduct nameReviewGPU performance

OnePlus 7T

Score

92.5

Xiaomi Mi 9

Score

92.5

Comparison for RAM capacity

ImageProduct nameReviewRAM capacity

OnePlus 7T

Score

93.4

Xiaomi Mi 9

Score

93.4

Comparison for storage size

ImageProduct nameReviewstorage size

OnePlus 7T

Score

91.5

Xiaomi Mi 9

Score

91.5

Comparison for process integration

ImageProduct nameReviewprocess integration

OnePlus 7T

Score

98.0

Xiaomi Mi 9

Score

98.0

Comparison for battery

ImageProduct nameReviewbattery

OnePlus 7T

Score

77.0

Xiaomi Mi 9

Score

69.5

Comparison for downlink data communication speed

ImageProduct nameReviewdownlink data communication speed

OnePlus 7T

Score

87.1

Xiaomi Mi 9

Score

87.1

Comparison for rear-camera resolution

ImageProduct nameReviewrear-camera resolution

OnePlus 7T

Score

97.8

Xiaomi Mi 9

Score

97.8

Comparison for number of wide-angle camera pixels on the back

ImageProduct nameReviewnumber of wide-angle camera pixels on the back

OnePlus 7T

Score

89.0

Xiaomi Mi 9

Score

89.0

Comparison for number of rear view camera pixels

ImageProduct nameReviewnumber of rear view camera pixels

OnePlus 7T

Score

54.5

Xiaomi Mi 9

Score

54.5

Comparison for front-camera resolution

ImageProduct nameReviewfront-camera resolution

OnePlus 7T

Score

75.4

Xiaomi Mi 9

Score

81.0

Comparison for grip

ImageProduct nameReviewgrip

OnePlus 7T

Score

53.2Color:Frosted Silver/Glacier Blue, Dimensions (width x height x thickness):2.9 inches (74.4 mm) x 6.3 inches (160.9 mm) x 0.3 inches (8.1 mm), Weight:190 oz (190 g)

Xiaomi Mi 9

Score

57.1Color:Lavender Violet/Ocean Blue/Piano Black, Dimensions (width x height x thickness):2.9 inches (74.7 mm) x 6.2 inches (157.5 mm) x 0.3 inches (7.6 mm), Weight:173 oz (173 g)

Comparison for screen cleanliness

ImageProduct nameReviewscreen cleanliness

OnePlus 7T

Score

84.9Display type:Fluid AMOLED, Screen resolution (width x height):1080 x 2400, Pixel density:401 ppi

Xiaomi Mi 9

Score

84.9Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:403 ppi

Comparison for screen quality

ImageProduct nameReviewscreen quality

OnePlus 7T

Score

87.1Display size:6.55 inch, Display type:Fluid AMOLED, Screen resolution (width x height):1080 x 2400, Pixel density:401 ppi

Xiaomi Mi 9

Score

86.0Display size:6.39 inch, Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:403 ppi

Comparison for performance

ImageProduct nameReviewperformance

OnePlus 7T

Score

96.8OS:Android

Xiaomi Mi 9

Score

96.3OS:Android

Compare Performance Specs

OnePlus 7TXiaomi Mi 9
ImageOnePlus 7TXiaomi Mi 9
MakerOnePlusXiaomi
Release date10/26, 20193, 2019
ColorFrosted Silver/Glacier BlueLavender Violet/Ocean Blue/Piano Black
OSAndroidAndroid
Dimensions (width x height x thickness)2.9 inches (74.4 mm) x 6.3 inches (160.9 mm) x 0.3 inches (8.1 mm)2.9 inches (74.7 mm) x 6.2 inches (157.5 mm) x 0.3 inches (7.6 mm)
Weight190 oz (190 g)173 oz (173 g)
Display size6.55 inch6.39 inch
Display typeFluid AMOLEDSuper AMOLED
Screen resolution (width x height)1080 x 24001080 x 2340
Pixel density401 ppi403 ppi
Battery capacity3800 mAh3300 mAh
ChipsetQualcomm SM8150 Snapdragon 855+Qualcomm SM8150 Snapdragon 855
CPU specs2.96GHz+2.42GHz+1.78GHz×8(OctaCore)2.84GHz+2.42GHz+1.78GHz×8(OctaCore)
RAM size8GB8GB
Storage size256GB256GB
Rear-camera resolution48 MP48 MP
Front-camera resolution16 MP20 MP

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