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Which is better, ROG Phone II ZS660KL 1024GB or Xiaomi Mi 9 (2019) 256GB? We compared their features and specs in detail

Created date: 2019-09-07 05:35:35, Updated date: 2020-04-16 18:44:14

ROG Phone II ZS660KL 1024GBXiaomi Mi 9 (2019) 256GB
ROG Phone II ZS660KL 1024GBXiaomi Mi 9 (2019) 256GB

How did the evaluations between the "ROG Phone II ZS660KL 1024GB" and "Xiaomi Mi 9 (2019) 256GB" 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!

ROG Phone II ZS660KL 1024GBXiaomi Mi 9 (2019) 256GB
ROG Phone II ZS660KL 1024GB

Xiaomi Mi 9 (2019) 256GB

General rating:
Portabilityrating-image2.8
55/100
rating-image3.2
63/100
Weightrating-image2.2
44/100
rating-image3.1
61/100
Size of screenrating-image4.5
90/100
rating-image4.5
90/100
Screen clarityrating-image4.1
82/100
rating-image4.2
84/100
Battery durationrating-image4.3
86/100
rating-image3.5
69/100
Processing capabilityrating-image4.9
98/100
rating-image4.8
96/100
Memory capacityrating-image5.0
99/100
rating-image4.7
93/100
Storage capacityrating-image5.0
99/100
rating-image4.6
91/100
Rear camera functionrating-image4.9
97/100
rating-image4.9
97/100
Front camera functionrating-image4.3
86/100
rating-image4.1
81/100

Compare Performance and Usability

Size comparison of "ROG Phone II ZS660KL 1024GB" and "Xiaomi Mi 9 (2019) 256GB". 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 "ROG Phone II ZS660KL 1024GB" is 77.6mm wide, 171.0mm tall, and 9.5mm thick. The "Xiaomi Mi 9 (2019) 256GB" is 74.7mm tall, 157.5mm wide, and 7.6mm thick.

Comparing the width and thickness of the main unit, the "Xiaomi Mi 9 (2019) 256GB" is smaller and more compact compared to the "ROG Phone II ZS660KL 1024GB". Therefore, it is easier to grip and hold the "Xiaomi Mi 9 (2019) 256GB" than the "ROG Phone II ZS660KL 1024GB". For this reason, the "Xiaomi Mi 9 (2019) 256GB" is recommended.

Comparing the width and height of the main unit, the "Xiaomi Mi 9 (2019) 256GB" is smaller and more compact than the "ROG Phone II ZS660KL 1024GB". As a result, the "Xiaomi Mi 9 (2019) 256GB" is easier to operate with one hand and it is more portable without getting in your way than the "ROG Phone II ZS660KL 1024GB". Therefore, the "Xiaomi Mi 9 (2019) 256GB" is recommended.

Comparing the overall size of the main unit, the "Xiaomi Mi 9 (2019) 256GB" is smaller than the "ROG Phone II ZS660KL 1024GB". As a result, it is easier to use the "Xiaomi Mi 9 (2019) 256GB" with one hand compared to the "ROG Phone II ZS660KL 1024GB", and its size makes it more comfortable to carry around. For this reason, the "Xiaomi Mi 9 (2019) 256GB" is recommended.

ScoreDimensions (width x height x thickness)
ROG Phone II ZS660KL 1024GB55/10077.6mm x 171.0mm x 9.5mm
Xiaomi Mi 9 (2019) 256GB63/10074.7mm x 157.5mm x 7.6mm

Which one is easier to hold, "ROG Phone II ZS660KL 1024GB" or "Xiaomi Mi 9 (2019) 256GB"? 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 "ROG Phone II ZS660KL 1024GB" weighs 240.0g. The "Xiaomi Mi 9 (2019) 256GB" clocks in at 173.0g. If you compare the weight of the two, the "Xiaomi Mi 9 (2019) 256GB" is a considerably lighter smartphone than the "ROG Phone II ZS660KL 1024GB", with a difference of about 67g. Because of this, the "Xiaomi Mi 9 (2019) 256GB" puts less of a burden on the fingers and wrists than the "ROG Phone II ZS660KL 1024GB". 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 (2019) 256GB" rather than the "ROG Phone II ZS660KL 1024GB".

ScoreWeight
ROG Phone II ZS660KL 1024GB44/100240.0g
Xiaomi Mi 9 (2019) 256GB61/100173.0g

Which is better in terms of display, "ROG Phone II ZS660KL 1024GB" or "Xiaomi Mi 9 (2019) 256GB"?

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 "ROG Phone II ZS660KL 1024GB" is 6.59inch, and 6.39inch on the "Xiaomi Mi 9 (2019) 256GB". The screens of the "ROG Phone II ZS660KL 1024GB" and "Xiaomi Mi 9 (2019) 256GB" 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
ROG Phone II ZS660KL 1024GB90/1006.59inch
Xiaomi Mi 9 (2019) 256GB90/1006.39inch

Which one has a better display, "ROG Phone II ZS660KL 1024GB" or "Xiaomi Mi 9 (2019) 256GB"?

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 "ROG Phone II ZS660KL 1024GB" has a 1080 x 2340 resolution and a pixel density of 391ppi. The "Xiaomi Mi 9 (2019) 256GB", on the other hand, has a screen resolution of 1080 x 2340 and a pixel density of 403ppi. There is not much of a difference in the pixel resolutions of the "ROG Phone II ZS660KL 1024GB" and "Xiaomi Mi 9 (2019) 256GB", 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
ROG Phone II ZS660KL 1024GB82/100391ppi
Xiaomi Mi 9 (2019) 256GB84/100403ppi

How is the battery duration of "ROG Phone II ZS660KL 1024GB" different from that of "Xiaomi Mi 9 (2019) 256GB" ? 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 "ROG Phone II ZS660KL 1024GB" has a battery capacity of 6000.0mAh, while the "Xiaomi Mi 9 (2019) 256GB" has a 3300.0mAh battery. With regards to battery performance, the "ROG Phone II ZS660KL 1024GB" has a substantially larger battery capacity than the "Xiaomi Mi 9 (2019) 256GB", with a difference of 2700mAh. The "ROG Phone II ZS660KL 1024GB" can be used without charging for a longer time than the "Xiaomi Mi 9 (2019) 256GB", 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 "ROG Phone II ZS660KL 1024GB" rather than the "Xiaomi Mi 9 (2019) 256GB".

ScoreBattery capacity
ROG Phone II ZS660KL 1024GB86/1006000.0mAh
Xiaomi Mi 9 (2019) 256GB69/1003300.0mAh

Which is better in terms of CPU function, "ROG Phone II ZS660KL 1024GB" or "Xiaomi Mi 9 (2019) 256GB"?

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 "ROG Phone II ZS660KL 1024GB" is equipped with a Qualcomm SM8150 Snapdragon 855+ processor, and its performance speed is 2.96GHz+2.42GHz+1.78GHz×8(8.0-cores). The "Xiaomi Mi 9 (2019) 256GB" uses an Qualcomm SM8150 Snapdragon 855 CPU that performs at a speed of 2.84GHz+2.42GHz+1.78GHz×8(8.0-cores). There is also no real discrepancy between the CPU performances of the "ROG Phone II ZS660KL 1024GB" and "Xiaomi Mi 9 (2019) 256GB". 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
ROG Phone II ZS660KL 1024GB98/1002.96GHz+2.42GHz+1.78GHz×8(8.0-cores)
Xiaomi Mi 9 (2019) 256GB96/1002.84GHz+2.42GHz+1.78GHz×8(8.0-cores)

How is "ROG Phone II ZS660KL 1024GB" different from "Xiaomi Mi 9 (2019) 256GB" 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 "ROG Phone II ZS660KL 1024GB" has 12.0GB of memory. The "Xiaomi Mi 9 (2019) 256GB", on the other hand, has 8.0GB. Comparing the memory performance, the "ROG Phone II ZS660KL 1024GB" has a larger memory capacity than the "Xiaomi Mi 9 (2019) 256GB", with a difference of approximately 4GB. For this reason, multitasking is smoother on the "ROG Phone II ZS660KL 1024GB" than the "Xiaomi Mi 9 (2019) 256GB", and applications are less likely to crash. Also, it is more enjoyable to play 3D games and VR on the "ROG Phone II ZS660KL 1024GB". For this reason, the "ROG Phone II ZS660KL 1024GB" is recommended.

ScoreRAM size
ROG Phone II ZS660KL 1024GB99/10012.0GB
Xiaomi Mi 9 (2019) 256GB93/1008.0GB

Which has a better storage capacity, "ROG Phone II ZS660KL 1024GB" or "Xiaomi Mi 9 (2019) 256GB"?

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 "ROG Phone II ZS660KL 1024GB" has 1024.0GB of storage, while the "Xiaomi Mi 9 (2019) 256GB" has 256.0GB. Comparing the ROM and storage capacity, the "ROG Phone II ZS660KL 1024GB" has a larger storage capacity compared to the "Xiaomi Mi 9 (2019) 256GB", with a difference of approximately 768GB. Consequently, the "ROG Phone II ZS660KL 1024GB" can take more photos and videos than the "Xiaomi Mi 9 (2019) 256GB" and it is possible to install more applications on it. For this reason, the "ROG Phone II ZS660KL 1024GB" is recommended.

ScoreStorage size
ROG Phone II ZS660KL 1024GB99/1001024.0GB
Xiaomi Mi 9 (2019) 256GB91/100256.0GB

Compare the rear cameras of "ROG Phone II ZS660KL 1024GB" and "Xiaomi Mi 9 (2019) 256GB". 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 "ROG Phone II ZS660KL 1024GB" has 48.0MP. The "Xiaomi Mi 9 (2019) 256GB" has 48.0MP. The rear facing cameras of the "ROG Phone II ZS660KL 1024GB" and "Xiaomi Mi 9 (2019) 256GB" 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
ROG Phone II ZS660KL 1024GB97/10048.0MP
Xiaomi Mi 9 (2019) 256GB97/10048.0MP

Which has a front camera with better picture quality, "ROG Phone II ZS660KL 1024GB" or "Xiaomi Mi 9 (2019) 256GB"?

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 "ROG Phone II ZS660KL 1024GB" has a resolution of 24.0MP. The "Xiaomi Mi 9 (2019) 256GB"'s has 20.0MP. Comparing the front-facing camera performance, the number of pixels of the front-facing camera on the "ROG Phone II ZS660KL 1024GB" is higher than the "Xiaomi Mi 9 (2019) 256GB", with a difference of approximately 4MP. For this reason, it is possible to take higher quality selfies and make clear prints with the "ROG Phone II ZS660KL 1024GB" than the "Xiaomi Mi 9 (2019) 256GB". Therefore, the "ROG Phone II ZS660KL 1024GB" is recommended.

ScoreFront-camera resolution
ROG Phone II ZS660KL 1024GB86/10024.0MP
Xiaomi Mi 9 (2019) 256GB81/10020.0MP

Compare Performance Specs

ROG Phone II ZS660KL 1024GBXiaomi Mi 9 (2019) 256GB
ImageROG Phone II ZS660KL 1024GBXiaomi Mi 9 (2019) 256GB
MakerAsusXiaomi
Release date2019-092019-03
ColorMatte Black/Glossy BlackLavender Violet/Ocean Blue/Piano Black
OSAndroidAndroid
Dimensions (width x height x thickness)77.6mm x 171.0mm x 9.5mm74.7mm x 157.5mm x 7.6mm
Weight240.0g173.0g
Display size6.59inch6.39inch
Display typeAMOLEDSuper AMOLED
Screen resolution (width x height)1080 x 23401080 x 2340
Pixel density391ppi403ppi
Battery capacity6000.0mAh3300.0mAh
ChipsetQualcomm SM8150 Snapdragon 855+Qualcomm SM8150 Snapdragon 855
CPU specs2.96GHz+2.42GHz+1.78GHz×8(8.0-cores)2.84GHz+2.42GHz+1.78GHz×8(8.0-cores)
RAM size12.0GB8.0GB
Storage size1024.0GB256.0GB
Rear-camera resolution48.0MP48.0MP
Front-camera resolution24.0MP20.0MP

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