Xiaomi Mi 9 versus Galaxy A8 Duos: a detailed breakdown of performance and specs

Created date: 03/18/2019, 20:34:54, Updated date: 04/16/2020, 07:57:40

Xiaomi Mi 9Galaxy A8 Duos
Xiaomi Mi 9Galaxy A8 Duos

We consolidated a wide range of information regarding detailed reviews of the Xiaomi Mi 9 and Galaxy A8 Duos, including the most highly scrutinized aspects, down to the most intricate details. If you're not sure about which smartphone to choose, or if you're not used to selecting a device, we've put together our reviews in an easy to understand format for you.

Xiaomi Mi 9Galaxy A8 Duos
Xiaomi Mi 9

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Galaxy A8 Duos

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General rating:

81/100

(The 30th of all smartphones)

66.8/100

(The - of all smartphones)

Portability
63/100
63/100
Weight
61/100
69/100
Size of screen
90/100
85/100
Screen clarity
84/100
81/100
Battery duration
69/100
65/100
Processing capability
96/100
57/100
Memory capacity
93/100
50/100
Storage capacity
91/100
55/100
Rear camera function
97/100
68/100
Front camera function
81/100
50/100

Compare Performance and Usability

Size comparison of Xiaomi Mi 9 and Galaxy A8 Duos. 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 is 2.9 inches (74.7 mm) wide, 6.2 inches (157.5 mm) tall, and 0.3 inches (7.6 mm) thick. The Galaxy A8 Duos is 3.0 inches (76.8 mm) tall, 6.2 inches (158 mm) wide, and 0.2 inches (5.9 mm) thick.

There is no real difference between the Xiaomi Mi 9 and Galaxy A8 Duos 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 Xiaomi Mi 9 and Galaxy A8 Duos, 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 Xiaomi Mi 9and Galaxy A8 Duos. 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)
Xiaomi Mi 963/1002.9 inches (74.7 mm) x 6.2 inches (157.5 mm) x 0.3 inches (7.6 mm)
Galaxy A8 Duos63/1003.0 inches (76.8 mm) x 6.2 inches (158 mm) x 0.2 inches (5.9 mm)

Which one is easier to hold, Xiaomi Mi 9 or Galaxy A8 Duos? 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 weighs 173 oz (173 g). The Galaxy A8 Duos clocks in at 151 oz (151 g). Comparing the weight of the main unit, the Galaxy A8 Duos is a lighter phone than the Xiaomi Mi 9, with a difference of approximately 151 oz (22 g). Therefore, there is less strain on your fingers and wrists even when you use your phone for a long time on the Galaxy A8 Duos compared to the Xiaomi Mi 9. For this reason, the Galaxy A8 Duos is recommended.

ScoreWeight
Xiaomi Mi 961/100173 oz (173 g)
Galaxy A8 Duos69/100151 oz (151 g)

Which is better in terms of display, Xiaomi Mi 9 or Galaxy A8 Duos?

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 is 6.39 inch, and 5.7 inch on the Galaxy A8 Duos. The screens of the Xiaomi Mi 9 and Galaxy A8 Duos 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 990/1006.39 inch
Galaxy A8 Duos85/1005.7 inch

Which one has a better display, Xiaomi Mi 9 or Galaxy A8 Duos?

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 has a 1080 x 2340 resolution and a pixel density of 403 ppi. The Galaxy A8 Duos, on the other hand, has a screen resolution of 1080 x 1920 and a pixel density of 386 ppi. There is not much of a difference in the pixel resolutions of the Xiaomi Mi 9 and Galaxy A8 Duos, 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
Xiaomi Mi 984/100403 ppi
Galaxy A8 Duos81/100386 ppi

How is the battery duration of Xiaomi Mi 9 different from that of Galaxy A8 Duos ? 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 has a battery capacity of 3300 mAh, while the Galaxy A8 Duos has a 3050 mAh battery. The batteries of both the Xiaomi Mi 9 and Galaxy A8 Duos perform to the same extent. There is also no difference in the battery capacities of the Xiaomi Mi 9 and the Galaxy A8 Duos. Since their battery life is practically identical, it would be better to compare them based on other aspects of performance and function.

ScoreBattery capacity
Xiaomi Mi 969/1003300 mAh
Galaxy A8 Duos65/1003050 mAh

Which is better in terms of CPU function, Xiaomi Mi 9 or Galaxy A8 Duos?

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 is equipped with a Qualcomm SM8150 Snapdragon 855 processor, and its performance speed is 2.84GHz+2.42GHz+1.78GHz×8(OctaCore). The Galaxy A8 Duos uses an Qualcomm MSM8939 Snapdragon 615 CPU that performs at a speed of 1.8GHz+1.3GHz×8(OctaCore). Comparing CPU performance, the Xiaomi Mi 9 has significantly higher specs than the Galaxy A8 Duos. The Xiaomi Mi 9 proves to be more advanced than the Galaxy A8 Duos in the way that apps run quickly and games play smoothly. If you're looking for a high-spec smartphone that runs quickly and plays games smoothly, we recommend that you buy the Xiaomi Mi 9 rather than the Galaxy A8 Duos.

ScoreCPU specs
Xiaomi Mi 996/1002.84GHz+2.42GHz+1.78GHz×8(OctaCore)
Galaxy A8 Duos57/1001.8GHz+1.3GHz×8(OctaCore)

How is Xiaomi Mi 9 different from Galaxy A8 Duos 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 has 8GB of memory. The Galaxy A8 Duos, on the other hand, has 2GB. As for memory performance, the Xiaomi Mi 9 has a larger memory capacity than the Galaxy A8 Duos, with a difference of about 6GB. The Xiaomi Mi 9 has better multitasking, less crashing, and runs 3D games and VR video better than the Galaxy A8 Duos. 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 rather than the Galaxy A8 Duos.

ScoreRAM size
Xiaomi Mi 993/1008GB
Galaxy A8 Duos50/1002GB

Which has a better storage capacity, Xiaomi Mi 9 or Galaxy A8 Duos?

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 has 256GB of storage, while the Galaxy A8 Duos has 32GB. In terms of ROM and data storage, the Xiaomi Mi 9 has a much larger capacity than the Galaxy A8 Duos, with a difference of about 224GB. The Xiaomi Mi 9 can save more photos and keep more apps installed than the Galaxy A8 Duos. If you're searching for a smartphone that can store more data, we recommended that you buy the Xiaomi Mi 9 rather than the Galaxy A8 Duos.

ScoreStorage size
Xiaomi Mi 991/100256GB
Galaxy A8 Duos55/10032GB

Compare the rear cameras of Xiaomi Mi 9 and Galaxy A8 Duos. 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 has 48 MP. The Galaxy A8 Duos has 16 MP. The rear-facing camera of the Xiaomi Mi 9 also has a higher pixel count than the Galaxy A8 Duos, with a difference of about 32 MP. The Xiaomi Mi 9 is more capable than the Galaxy A8 Duos 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 rather than the Galaxy A8 Duos.

ScoreRear-camera resolution
Xiaomi Mi 997/10048 MP
Galaxy A8 Duos68/10016 MP

Which has a front camera with better picture quality, Xiaomi Mi 9 or Galaxy A8 Duos?

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 has a resolution of 20 MP. The Galaxy A8 Duos's has 5 MP. The front-facing camera of the Xiaomi Mi 9 has a significantly higher number of pixels than the Galaxy A8 Duos, with a difference of about 15 MP. Therefore, the Xiaomi Mi 9 is more suitable for taking photos and videos than the Galaxy A8 Duos. If you want to take and print high-quality selfies, we recommend buying the Xiaomi Mi 9 rather than the Galaxy A8 Duos.

ScoreFront-camera resolution
Xiaomi Mi 981/10020 MP
Galaxy A8 Duos50/1005 MP

Detailed comparison of Xiaomi Mi 9 and Galaxy A8 Duos

Comparison for body size

ImageProduct nameReviewbody size

Xiaomi Mi 9

Score

53.0

Galaxy A8 Duos

Score

52.5

Comparison for body weight

ImageProduct nameReviewbody weight

Xiaomi Mi 9

Score

61.2

Galaxy A8 Duos

Score

69.9

Comparison for screen size

ImageProduct nameReviewscreen size

Xiaomi Mi 9

Score

90.7

Galaxy A8 Duos

Score

85.2

Comparison for screen resolution

ImageProduct nameReviewscreen resolution

Xiaomi Mi 9

Score

75.3

Galaxy A8 Duos

Score

68.7

Comparison for GPU performance

ImageProduct nameReviewGPU performance

Xiaomi Mi 9

Score

92.5

Galaxy A8 Duos

Score

45.6

Comparison for RAM capacity

ImageProduct nameReviewRAM capacity

Xiaomi Mi 9

Score

93.4

Galaxy A8 Duos

Score

50.0

Comparison for storage size

ImageProduct nameReviewstorage size

Xiaomi Mi 9

Score

91.5

Galaxy A8 Duos

Score

55.5

Comparison for process integration

ImageProduct nameReviewprocess integration

Xiaomi Mi 9

Score

98.0

Galaxy A8 Duos

Score

9.9

Comparison for battery

ImageProduct nameReviewbattery

Xiaomi Mi 9

Score

69.5

Galaxy A8 Duos

Score

65.8

Comparison for downlink data communication speed

ImageProduct nameReviewdownlink data communication speed

Xiaomi Mi 9

Score

87.1

Galaxy A8 Duos

Score

65.6

Comparison for rear-camera resolution

ImageProduct nameReviewrear-camera resolution

Xiaomi Mi 9

Score

97.8

Galaxy A8 Duos

Score

68.8

Comparison for front-camera resolution

ImageProduct nameReviewfront-camera resolution

Xiaomi Mi 9

Score

81.0

Galaxy A8 Duos

Score

50.0

Comparison for grip

ImageProduct nameReviewgrip

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)

Galaxy A8 Duos

Score

61.2Color:Pearl White/Midnight Black/Champagne Gold, Dimensions (width x height x thickness):3.0 inches (76.8 mm) x 6.2 inches (158 mm) x 0.2 inches (5.9 mm), Weight:151 oz (151 g)

Comparison for screen cleanliness

ImageProduct nameReviewscreen cleanliness

Xiaomi Mi 9

Score

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

Galaxy A8 Duos

Score

81.7Display type:Super AMOLED, Screen resolution (width x height):1080 x 1920, Pixel density:386 ppi

Comparison for screen quality

ImageProduct nameReviewscreen quality

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

Galaxy A8 Duos

Score

80.9Display size:5.7 inch, Display type:Super AMOLED, Screen resolution (width x height):1080 x 1920, Pixel density:386 ppi

Comparison for performance

ImageProduct nameReviewperformance

Xiaomi Mi 9

Score

96.3OS:Android

Galaxy A8 Duos

Score

57.8OS:Android

Compare Performance Specs

Xiaomi Mi 9Galaxy A8 Duos
ImageXiaomi Mi 9Galaxy A8 Duos
MakerXiaomiSamsung
Release date3, 20198, 2015
ColorLavender Violet/Ocean Blue/Piano BlackPearl White/Midnight Black/Champagne Gold
OSAndroidAndroid
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)3.0 inches (76.8 mm) x 6.2 inches (158 mm) x 0.2 inches (5.9 mm)
Weight173 oz (173 g)151 oz (151 g)
Display size6.39 inch5.7 inch
Display typeSuper AMOLEDSuper AMOLED
Screen resolution (width x height)1080 x 23401080 x 1920
Pixel density403 ppi386 ppi
Battery capacity3300 mAh3050 mAh
ChipsetQualcomm SM8150 Snapdragon 855Qualcomm MSM8939 Snapdragon 615
CPU specs2.84GHz+2.42GHz+1.78GHz×8(OctaCore)1.8GHz+1.3GHz×8(OctaCore)
RAM size8GB2GB
Storage size256GB32GB
Rear-camera resolution48 MP16 MP
Front-camera resolution20 MP5 MP

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