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Which is better, Galaxy A9 (2018) 128GB or Xperia XZ2 SO-03K docomo 64GB? We compared their features and specs in detail

Created date: 2018-11-18 11:06:59, Updated date: 2020-04-16 18:35:19

Galaxy A9 (2018) 128GBXperia XZ2 SO-03K docomo 64GB
Galaxy A9 (2018) 128GBXperia XZ2 SO-03K docomo 64GB

Are you having trouble comparing the differences in features and performance of the "Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", or unsure about their differences in ease-of-use, and wondering which to buy? We did a deep-dive comparison of the features, specs, and capabilities of these two smartphone, and provided our rating of which one was a better buy.

Galaxy A9 (2018) 128GBXperia XZ2 SO-03K docomo 64GB
Galaxy A9 (2018) 128GB

Xperia XZ2 SO-03K docomo 64GB

General rating:
Holding comfortrating-image3.0
59/100
rating-image3.1
62/100
Weightrating-image2.9
57/100
rating-image2.6
51/100
Screen sizerating-image4.5
90/100
rating-image4.3
85/100
Display qualityrating-image4.1
82/100
rating-image4.3
85/100
Battery liferating-image3.9
77/100
rating-image3.3
65/100
Processing powerrating-image4.6
92/100
rating-image4.5
89/100
Memory capacityrating-image4.7
93/100
rating-image3.5
70/100
Storage capacityrating-image4.5
90/100
rating-image3.4
67/100
Rear camera performancerating-image4.4
87/100
rating-image3.8
76/100
Front camera performancerating-image4.3
86/100
rating-image2.5
50/100

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", performance comparison

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB" 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 "Galaxy A9 (2018) 128GB" has a width of 77.0mm, a length of 162.5mm, and a thickness of 7.8mm. Also, the "Xperia XZ2 SO-03K docomo 64GB" has a width of 72.0mm, a length of 153.0mm, and a thickness of 11.1mm.

Comparing the width and thickness of the body, there isn't much difference between the "Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB" in terms of size. For that reason, the ease of gripping and carrying the devices in one hand is about the same for both. Therefore it's better to compare them in terms of performance and functionality.

Comparing the width and thickness of the body, there isn't a large difference in size between the "Galaxy A9 (2018) 128GB" and the "Xperia XZ2 SO-03K docomo 64GB". 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, there isn't a big difference in size between the "Galaxy A9 (2018) 128GB" and the "Xperia XZ2 SO-03K docomo 64GB". For that reason the ease of carrying and use with one hand is about the same for both. That's why it is better to compare the two in terms of other aspects of performance and functionality.

ScoreDimensions (width x height x thickness)
Galaxy A9 (2018) 128GB59/10077.0mm x 162.5mm x 7.8mm
Xperia XZ2 SO-03K docomo 64GB62/10072.0mm x 153.0mm x 11.1mm

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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 "Galaxy A9 (2018) 128GB" is about 183.0g, and the weight of the "Xperia XZ2 SO-03K docomo 64GB" is about 198.0g. Comparing the weight of the two devices, the "Galaxy A9 (2018) 128GB" is a lighter smart phone than the "Xperia XZ2 SO-03K docomo 64GB", with a difference of about 15g. For that reason the "Galaxy A9 (2018) 128GB" is a smart phone that is less likely than the "Xperia XZ2 SO-03K docomo 64GB"to put a burden on your fingers and wrist when used for an extended period. That's why we recommend the "Galaxy A9 (2018) 128GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreWeight
Galaxy A9 (2018) 128GB57/100183.0g
Xperia XZ2 SO-03K docomo 64GB51/100198.0g

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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 "Galaxy A9 (2018) 128GB" has a 6.3inch display. Also, the "Xperia XZ2 SO-03K docomo 64GB" has a 5.7inch display. Comparing the screen size, the "Galaxy A9 (2018) 128GB" has a larger screen compared to the "Xperia XZ2 SO-03K docomo 64GB", with a roughly 0.5inch difference. As a result, the user is less likely to mistap when using apps on the "Galaxy A9 (2018) 128GB" than on the "Xperia XZ2 SO-03K docomo 64GB", and is also able to enjoy videos and games on a larger screen. Therefore, we recommend the "Galaxy A9 (2018) 128GB".

ScoreDisplay size
Galaxy A9 (2018) 128GB90/1006.3inch
Xperia XZ2 SO-03K docomo 64GB85/1005.7inch

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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 "Galaxy A9 (2018) 128GB" is 1080 x 2220, and pixel density is 391ppi. Also, the resolution on the "Xperia XZ2 SO-03K docomo 64GB" is 1080 x 2160, and pixel density is 423ppi. Comparing the pixel count, the difference in pixel density between the "Galaxy A9 (2018) 128GB" and the "Xperia XZ2 SO-03K docomo 64GB" 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
Galaxy A9 (2018) 128GB82/100391ppi
Xperia XZ2 SO-03K docomo 64GB85/100423ppi

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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 "Galaxy A9 (2018) 128GB" is 3800.0mAh, and the "Xperia XZ2 SO-03K docomo 64GB" is 3060.0mAh. Regarding battery capacity, the "Galaxy A9 (2018) 128GB" has greater battery capacity than the "Xperia XZ2 SO-03K docomo 64GB", with a 740mAh difference. Since the "Galaxy A9 (2018) 128GB" can be used for longer periods without recharging than the "Xperia XZ2 SO-03K docomo 64GB", it is great for outdoor use. If you want a smartphone with a longer battery life, we recommend the "Galaxy A9 (2018) 128GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreBattery capacity
Galaxy A9 (2018) 128GB77/1003800.0mAh
Xperia XZ2 SO-03K docomo 64GB65/1003060.0mAh

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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 "Galaxy A9 (2018) 128GB"'s CPU is a Qualcomm SDM660 Snapdragon 660, with performance measured at 2.2GHz+1.8GHz×8(8.0-cores). Also, the "Xperia XZ2 SO-03K docomo 64GB"'s CPU is a Snapdragon 845 SDM845, with performance measured at 2.8GHz×8(8.0-cores). Comparing CPU performance, there is almost no difference in the specs of the "Galaxy A9 (2018) 128GB" and the "Xperia XZ2 SO-03K docomo 64GB". 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
Galaxy A9 (2018) 128GB92/1002.2GHz+1.8GHz×8(8.0-cores)
Xperia XZ2 SO-03K docomo 64GB89/1002.8GHz×8(8.0-cores)

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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 "Galaxy A9 (2018) 128GB" is 8.0GB and the weight of the "Xperia XZ2 SO-03K docomo 64GB" is 4.0GB. Comparing the devices in terms of RAM, the "Galaxy A9 (2018) 128GB" has a significantly larger amount of RAM than the "Xperia XZ2 SO-03K docomo 64GB", with a difference of about 4GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "Galaxy A9 (2018) 128GB" is superior to the "Xperia XZ2 SO-03K docomo 64GB". If you're looking for a smart phone that can run multiple apps simultaneously with stability and also allows you to comfortably enjoy 3D games and VR, then we recommend purchasing the "Galaxy A9 (2018) 128GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreRAM size
Galaxy A9 (2018) 128GB93/1008.0GB
Xperia XZ2 SO-03K docomo 64GB70/1004.0GB

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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 "Galaxy A9 (2018) 128GB" is 128.0GB. Also the "Xperia XZ2 SO-03K docomo 64GB" is 64.0GB. Regarding storage capacity, the "Galaxy A9 (2018) 128GB" has a much larger data storage capacity compared to the "Xperia XZ2 SO-03K docomo 64GB", with a roughly 64GB difference. In terms of the number of pictures you can save and the applications that you can install, the "Galaxy A9 (2018) 128GB" is superior to the "Xperia XZ2 SO-03K docomo 64GB". If you are looking for a smartphone that can save more data, we recommend the "Galaxy A9 (2018) 128GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreStorage size
Galaxy A9 (2018) 128GB90/100128.0GB
Xperia XZ2 SO-03K docomo 64GB67/10064.0GB

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB" 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.

"Galaxy A9 (2018) 128GB" has a 24.0MP main camera. Also, "Xperia XZ2 SO-03K docomo 64GB" has a 19.2MP main camera. Comparing rear camera performance, the "Galaxy A9 (2018) 128GB" has a much higher pixel count compared to the "Xperia XZ2 SO-03K docomo 64GB", with a roughly 4.8MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "Galaxy A9 (2018) 128GB" is superior to the "Xperia XZ2 SO-03K docomo 64GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "Galaxy A9 (2018) 128GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreRear-camera resolution
Galaxy A9 (2018) 128GB87/10024.0MP
Xperia XZ2 SO-03K docomo 64GB76/10019.2MP

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", 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.

"Galaxy A9 (2018) 128GB" has an 24.0MP front camera and "Xperia XZ2 SO-03K docomo 64GB" has an 5.0MP front camera. Comparing rear camera performance, the front camera of the "Galaxy A9 (2018) 128GB" has a much higher pixel count compared to the "Xperia XZ2 SO-03K docomo 64GB", with a roughly 19MP difference. As a result, the "Galaxy A9 (2018) 128GB" is more suited than the "Xperia XZ2 SO-03K docomo 64GB" for shooting videos and taking pictures. If you are looking for a smartphone that is suited for shooting high resolution selfies which will look clean when printed, we recommend the "Galaxy A9 (2018) 128GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreFront-camera resolution
Galaxy A9 (2018) 128GB86/10024.0MP
Xperia XZ2 SO-03K docomo 64GB50/1005.0MP

"Galaxy A9 (2018) 128GB" and "Xperia XZ2 SO-03K docomo 64GB", performance comparison by specification sheet

Galaxy A9 (2018) 128GBXperia XZ2 SO-03K docomo 64GB
ImageGalaxy A9 (2018) 128GBXperia XZ2 SO-03K docomo 64GB
MakerSamsung
Release date2018-112018-05-31
ColorCaviar Black/Lemonade Blue/Bubblegum PinkDeep Green/Liquid Black/Liquid Silver/Ash Pink
OSAndroidAndroid
Dimensions (width x height x thickness)77.0mm x 162.5mm x 7.8mm72.0mm x 153.0mm x 11.1mm
Weight183.0g198.0g
Display size6.3inch5.7inch
Display typeSuper AMOLEDfor mobile
Screen resolution (width x height)1080 x 22201080 x 2160
Pixel density391ppi423ppi
Battery capacity3800.0mAh3060.0mAh
ChipsetQualcomm SDM660 Snapdragon 660Snapdragon 845 SDM845
CPU specs2.2GHz+1.8GHz×8(8.0-cores)2.8GHz×8(8.0-cores)
RAM size8.0GB4.0GB
Storage size128.0GB64.0GB
Rear-camera resolution24.0MP19.2MP
Front-camera resolution24.0MP5.0MP

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