Which should you buy, the ROG Phone II ZS660KL or vivo iQOO Pro? We offer a thorough comparison of the differences in functions, specifications and performance between the two

Created date: 09/06/2019, 20:39:59, Updated date: 04/16/2020, 09:48:38

ROG Phone II ZS660KLvivo iQOO Pro
ROG Phone II ZS660KLvivo iQOO Pro

Are you having trouble comparing the differences in features and performance of the ROG Phone II ZS660KL and vivo iQOO Pro, 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.

ROG Phone II ZS660KLvivo iQOO Pro
ROG Phone II ZS660KL

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vivo iQOO Pro

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General rating:

82.6/100

(The 13th of all smartphones)

82.1/100

(The 18th of all smartphones)

Portability
55/100
59/100
Weight
44/100
47/100
Size of screen
90/100
90/100
Screen clarity
82/100
84/100
Battery duration
86/100
81/100
Processing capability
98/100
98/100
Memory capacity
99/100
99/100
Storage capacity
99/100
90/100
Rear camera function
97/100
97/100
Front camera function
86/100
70/100

Compare Performance and Usability

Size comparison of ROG Phone II ZS660KL and vivo iQOO Pro. 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 is 3.1 inches (77.6 mm) wide, 6.7 inches (171 mm) tall, and 0.4 inches (9.5 mm) thick. The vivo iQOO Pro is 3.0 inches (75.7 mm) tall, 6.3 inches (158.8 mm) wide, and 0.4 inches (9.3 mm) thick.

There is no real difference between the ROG Phone II ZS660KL and vivo iQOO Pro 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 ROG Phone II ZS660KL and vivo iQOO Pro, 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 ROG Phone II ZS660KLand vivo iQOO Pro. 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)
ROG Phone II ZS660KL55/1003.1 inches (77.6 mm) x 6.7 inches (171 mm) x 0.4 inches (9.5 mm)
vivo iQOO Pro59/1003.0 inches (75.7 mm) x 6.3 inches (158.8 mm) x 0.4 inches (9.3 mm)

Which one is easier to hold, ROG Phone II ZS660KL or vivo iQOO Pro? 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 weighs 240 oz (240 g). The vivo iQOO Pro clocks in at 215 oz (215 g). The ROG Phone II ZS660KL and vivo iQOO Pro have around the same weight, so prolonged use will tire out fingers nd wrists to around the same degree. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreWeight
ROG Phone II ZS660KL44/100240 oz (240 g)
vivo iQOO Pro47/100215 oz (215 g)

Which is better in terms of display, ROG Phone II ZS660KL or vivo iQOO Pro?

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 is 6.59 inch, and 6.41 inch on the vivo iQOO Pro. The screens of the ROG Phone II ZS660KL and vivo iQOO Pro 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 ZS660KL90/1006.59 inch
vivo iQOO Pro90/1006.41 inch

Which one has a better display, ROG Phone II ZS660KL or vivo iQOO Pro?

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 has a 1080 x 2340 resolution and a pixel density of 391 ppi. The vivo iQOO Pro, on the other hand, has a screen resolution of 1080 x 2340 and a pixel density of 402 ppi. There is not much of a difference in the pixel resolutions of the ROG Phone II ZS660KL and vivo iQOO Pro, 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 ZS660KL82/100391 ppi
vivo iQOO Pro84/100402 ppi

How is the battery duration of ROG Phone II ZS660KL different from that of vivo iQOO Pro ? 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 has a battery capacity of 6000 mAh, while the vivo iQOO Pro has a 4500 mAh battery. The batteries of both the ROG Phone II ZS660KL and vivo iQOO Pro perform to the same extent. There is also no difference in the battery capacities of the ROG Phone II ZS660KL and the vivo iQOO Pro. Since their battery life is practically identical, it would be better to compare them based on other aspects of performance and function.

ScoreBattery capacity
ROG Phone II ZS660KL86/1006000 mAh
vivo iQOO Pro81/1004500 mAh

Which is better in terms of CPU function, ROG Phone II ZS660KL or vivo iQOO Pro?

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 is equipped with a Qualcomm SM8150 Snapdragon 855+ processor, and its performance speed is 2.96GHz+2.42GHz+1.78GHz×8(OctaCore). The vivo iQOO Pro 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 ROG Phone II ZS660KL and vivo iQOO Pro. 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 ZS660KL98/1002.96GHz+2.42GHz+1.78GHz×8(OctaCore)
vivo iQOO Pro98/1002.84GHz+2.42GHz+1.78GHz×8(OctaCore)

How is ROG Phone II ZS660KL different from vivo iQOO Pro 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 has 12GB of memory. The vivo iQOO Pro, on the other hand, has 12GB. Memory performance is roughly the same for both the ROG Phone II ZS660KL and vivo iQOO Pro; 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
ROG Phone II ZS660KL99/10012GB
vivo iQOO Pro99/10012GB

Which has a better storage capacity, ROG Phone II ZS660KL or vivo iQOO Pro?

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 has 1024GB of storage, while the vivo iQOO Pro has 128GB. Comparing the ROM and storage capacity, the ROG Phone II ZS660KL has a larger storage capacity compared to the vivo iQOO Pro, with a difference of approximately 896GB. Consequently, the ROG Phone II ZS660KL can take more photos and videos than the vivo iQOO Pro and it is possible to install more applications on it. For this reason, the ROG Phone II ZS660KL is recommended.

ScoreStorage size
ROG Phone II ZS660KL99/1001024GB
vivo iQOO Pro90/100128GB

Compare the rear cameras of ROG Phone II ZS660KL and vivo iQOO Pro. 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 has 48 MP. The vivo iQOO Pro has 48 MP. The rear facing cameras of the ROG Phone II ZS660KL and vivo iQOO Pro 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 ZS660KL97/10048 MP
vivo iQOO Pro97/10048 MP

Which has a front camera with better picture quality, ROG Phone II ZS660KL or vivo iQOO Pro?

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 has a resolution of 24 MP. The vivo iQOO Pro's has 12 MP. The front-facing camera of the ROG Phone II ZS660KL has a significantly higher number of pixels than the vivo iQOO Pro, with a difference of about 12 MP. Therefore, the ROG Phone II ZS660KL is more suitable for taking photos and videos than the vivo iQOO Pro. If you want to take and print high-quality selfies, we recommend buying the ROG Phone II ZS660KL rather than the vivo iQOO Pro.

ScoreFront-camera resolution
ROG Phone II ZS660KL86/10024 MP
vivo iQOO Pro70/10012 MP

Detailed comparison of ROG Phone II ZS660KL and vivo iQOO Pro

Comparison for general rating

ImageProduct nameReviewgeneral rating

ROG Phone II ZS660KL

Score

82.6Color:Matte Black/Glossy Black, Dimensions (width x height x thickness):3.1 inches (77.6 mm) x 6.7 inches (171 mm) x 0.4 inches (9.5 mm), Weight:240 oz (240 g), Display type:AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:391 ppi, Display size:6.59 inch, OS:Android

vivo iQOO Pro

Score

82.1Color:Black/Blue, Dimensions (width x height x thickness):3.0 inches (75.7 mm) x 6.3 inches (158.8 mm) x 0.4 inches (9.3 mm), Weight:215 oz (215 g), Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:402 ppi, Display size:6.41 inch, OS:Android

Comparison for body size

ImageProduct nameReviewbody size

ROG Phone II ZS660KL

Score

45.6

vivo iQOO Pro

Score

50.3

Comparison for body weight

ImageProduct nameReviewbody weight

ROG Phone II ZS660KL

Score

44.2

vivo iQOO Pro

Score

47.8

Comparison for screen size

ImageProduct nameReviewscreen size

ROG Phone II ZS660KL

Score

91.0

vivo iQOO Pro

Score

90.7

Comparison for screen resolution

ImageProduct nameReviewscreen resolution

ROG Phone II ZS660KL

Score

75.3

vivo iQOO Pro

Score

75.3

Comparison for GPU performance

ImageProduct nameReviewGPU performance

ROG Phone II ZS660KL

Score

92.5

vivo iQOO Pro

Score

92.5

Comparison for RAM capacity

ImageProduct nameReviewRAM capacity

ROG Phone II ZS660KL

Score

99.0

vivo iQOO Pro

Score

99.0

Comparison for storage size

ImageProduct nameReviewstorage size

ROG Phone II ZS660KL

Score

99.0

vivo iQOO Pro

Score

90.0

Comparison for process integration

ImageProduct nameReviewprocess integration

ROG Phone II ZS660KL

Score

98.0

vivo iQOO Pro

Score

98.0

Comparison for battery

ImageProduct nameReviewbattery

ROG Phone II ZS660KL

Score

86.0

vivo iQOO Pro

Score

81.5

Comparison for downlink data communication speed

ImageProduct nameReviewdownlink data communication speed

ROG Phone II ZS660KL

Score

87.1

vivo iQOO Pro

Score

95.0

Comparison for rear-camera resolution

ImageProduct nameReviewrear-camera resolution

ROG Phone II ZS660KL

Score

97.8

vivo iQOO Pro

Score

97.8

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

ImageProduct nameReviewnumber of wide-angle camera pixels on the back

ROG Phone II ZS660KL

Score

89.0

vivo iQOO Pro

Score

89.0

Comparison for front-camera resolution

ImageProduct nameReviewfront-camera resolution

ROG Phone II ZS660KL

Score

86.6

vivo iQOO Pro

Score

70.0

Comparison for grip

ImageProduct nameReviewgrip

ROG Phone II ZS660KL

Score

44.9Color:Matte Black/Glossy Black, Dimensions (width x height x thickness):3.1 inches (77.6 mm) x 6.7 inches (171 mm) x 0.4 inches (9.5 mm), Weight:240 oz (240 g)

vivo iQOO Pro

Score

49.0Color:Black/Blue, Dimensions (width x height x thickness):3.0 inches (75.7 mm) x 6.3 inches (158.8 mm) x 0.4 inches (9.3 mm), Weight:215 oz (215 g)

Comparison for screen cleanliness

ImageProduct nameReviewscreen cleanliness

ROG Phone II ZS660KL

Score

82.9Display type:AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:391 ppi

vivo iQOO Pro

Score

84.9Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:402 ppi

Comparison for screen quality

ImageProduct nameReviewscreen quality

ROG Phone II ZS660KL

Score

87.2Display size:6.59 inch, Display type:AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:391 ppi

vivo iQOO Pro

Score

86.2Display size:6.41 inch, Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:402 ppi

Comparison for performance

ImageProduct nameReviewperformance

ROG Phone II ZS660KL

Score

98.9OS:Android

vivo iQOO Pro

Score

98.4OS:Android

Compare Performance Specs

ROG Phone II ZS660KLvivo iQOO Pro
ImageROG Phone II ZS660KLvivo iQOO Pro
MakerAsusvivo
Release date9, 20198, 2019
ColorMatte Black/Glossy BlackBlack/Blue
OSAndroidAndroid
Dimensions (width x height x thickness)3.1 inches (77.6 mm) x 6.7 inches (171 mm) x 0.4 inches (9.5 mm)3.0 inches (75.7 mm) x 6.3 inches (158.8 mm) x 0.4 inches (9.3 mm)
Weight240 oz (240 g)215 oz (215 g)
Display size6.59 inch6.41 inch
Display typeAMOLEDSuper AMOLED
Screen resolution (width x height)1080 x 23401080 x 2340
Pixel density391 ppi402 ppi
Battery capacity6000 mAh4500 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 size12GB12GB
Storage size1024GB128GB
Rear-camera resolution48 MP48 MP
Front-camera resolution24 MP12 MP

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