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Which should you buy, the ROG Phone 3 ZS661KS 512GB or Oppo A7 (2018) 64GB? We offer a thorough comparison of the differences in functions, specifications and performance between the two

Created date: 2020-07-23 14:02:03

ROG Phone 3 ZS661KS 512GBOppo A7 (2018) 64GB
ROG Phone 3 ZS661KS 512GBOppo A7 (2018) 64GB

Are you having trouble comparing the differences in features and performance of the "ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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.

ROG Phone 3 ZS661KS 512GBOppo A7 (2018) 64GB
ROG Phone 3 ZS661KS 512GB

Oppo A7 (2018) 64GB

General rating:

82.1/100

(The 3005th of all smartphones)

66.4/100

(The 3542th of all smartphones)

Holding comfort
53/100
61/100
Weight
44/100
63/100
Screen size
90/100
90/100
Display quality
82/100
54/100
Battery life
86/100
80/100
Processing power
99/100
88/100
Memory capacity
100/100
70/100
Storage capacity
95/100
67/100
Rear camera performance
100/100
61/100
Front camera performance
86/100
75/100

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 64GB", performance comparison

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" has a width of 78.0mm, a length of 171.0mm, and a thickness of 9.9mm. Also, the "Oppo A7 (2018) 64GB" has a width of 75.4mm, a length of 155.9mm, and a thickness of 8.1mm.

Comparing the width and thickness of the body, the "Oppo A7 (2018) 64GB" is smaller and more compact compared to the "ROG Phone 3 ZS661KS 512GB". For that reason, the "Oppo A7 (2018) 64GB" is easier to grip firmly and carry one-handed than the "ROG Phone 3 ZS661KS 512GB". For that reason, we recommend the "Oppo A7 (2018) 64GB".

Comparing the width and thickness of the body, the "Oppo A7 (2018) 64GB" is a more compact size than the "ROG Phone 3 ZS661KS 512GB". For that reason the "Oppo A7 (2018) 64GB" has higher one-handed operability, and has greater portability, being less likely to get in the way when being carried. For these reasons, we recommend the "Oppo A7 (2018) 64GB".

Comparing the overall size of the two devices, the "Oppo A7 (2018) 64GB" has a large size compared to the "ROG Phone 3 ZS661KS 512GB". For that reason the "Oppo A7 (2018) 64GB" is a size that is easier to use in one hand and comfortably carry than the "ROG Phone 3 ZS661KS 512GB". That's why we recommend the "Oppo A7 (2018) 64GB".

ScoreDimensions (width x height x thickness)
ROG Phone 3 ZS661KS 512GB53/10078.0mm x 171.0mm x 9.9mm
Oppo A7 (2018) 64GB61/10075.4mm x 155.9mm x 8.1mm

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" is about 240.0g, and the weight of the "Oppo A7 (2018) 64GB" is about 168.0g. Comparing the weight of the two devices, the "Oppo A7 (2018) 64GB" is a considerably lighter smart phone than the "ROG Phone 3 ZS661KS 512GB", and there is a difference of about 72g. In terms of the burden placed upon your fingers and wrist, the "Oppo A7 (2018) 64GB" is superior to the "ROG Phone 3 ZS661KS 512GB". If you are going for a smart phone that won't lead to hand fatigue even after extended use, and is less likely to place a burden on your fingers, we recommend purchasing the "Oppo A7 (2018) 64GB" over the "ROG Phone 3 ZS661KS 512GB".

ScoreWeight
ROG Phone 3 ZS661KS 512GB44/100240.0g
Oppo A7 (2018) 64GB63/100168.0g

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" has a 6.59inch display. Also, the "Oppo A7 (2018) 64GB" has a 6.2inch display. Comparing the screen size, there is a negligible difference in screen size between the "ROG Phone 3 ZS661KS 512GB" and the "Oppo A7 (2018) 64GB". As a result, the app buttons on both are equally easy to press. We recommend comparing them based on other aspects of performance and functionality.

ScoreDisplay size
ROG Phone 3 ZS661KS 512GB90/1006.59inch
Oppo A7 (2018) 64GB90/1006.2inch

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" is 1080 x 2340, and pixel density is 391ppi. Also, the resolution on the "Oppo A7 (2018) 64GB" is 720 x 1520, and pixel density is 271ppi. Comparing the pixel count, the "ROG Phone 3 ZS661KS 512GB" has much higher pixel density than the "Oppo A7 (2018) 64GB", with a difference of roughly 120ppi. In terms of having better picture quality and exerting less strain on the eyes, the "ROG Phone 3 ZS661KS 512GB" is superior to the "Oppo A7 (2018) 64GB". If you are looking for a smartphone that is easy on the eyes, displaying texts and pictures clearly without any blurring, we recommend the "ROG Phone 3 ZS661KS 512GB" over the "Oppo A7 (2018) 64GB".

ScorePixel density
ROG Phone 3 ZS661KS 512GB82/100391ppi
Oppo A7 (2018) 64GB54/100271ppi

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" is 6000.0mAh, and the "Oppo A7 (2018) 64GB" is 4230.0mAh. Regarding battery capacity, the "ROG Phone 3 ZS661KS 512GB" has greater battery capacity than the "Oppo A7 (2018) 64GB", with a 1770mAh difference. If battery is a priority, then the "ROG Phone 3 ZS661KS 512GB" is recommended over the "Oppo A7 (2018) 64GB".

ScoreBattery capacity
ROG Phone 3 ZS661KS 512GB86/1006000.0mAh
Oppo A7 (2018) 64GB80/1004230.0mAh

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB"'s CPU is a Qualcomm SM8250 Snapdragon 865+, with performance measured at 3.1GHz+2.42GHz+1.8GHz×8(8.0-cores). Also, the "Oppo A7 (2018) 64GB"'s CPU is a Qualcomm SDM450 Snapdragon 450, with performance measured at 1.8GHz×8(8.0-cores). Comparing CPU performance, the "ROG Phone 3 ZS661KS 512GB" has considerably higher specs than the "Oppo A7 (2018) 64GB". In terms of being able to comfortably play games and run apps smoothly, the "ROG Phone 3 ZS661KS 512GB" is superior to the "Oppo A7 (2018) 64GB". If you're going for a high spec smart phone that runs smoothly and comfortably handles games, we recommend purchasing the "ROG Phone 3 ZS661KS 512GB" over the "Oppo A7 (2018) 64GB".

ScoreCPU specs
ROG Phone 3 ZS661KS 512GB99/1003.1GHz+2.42GHz+1.8GHz×8(8.0-cores)
Oppo A7 (2018) 64GB88/1001.8GHz×8(8.0-cores)

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" is 16.0GB and the weight of the "Oppo A7 (2018) 64GB" is 4.0GB. Comparing the devices in terms of RAM, the "ROG Phone 3 ZS661KS 512GB" has a significantly larger amount of RAM than the "Oppo A7 (2018) 64GB", with a difference of about 12GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "ROG Phone 3 ZS661KS 512GB" is superior to the "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" over the "Oppo A7 (2018) 64GB".

ScoreRAM size
ROG Phone 3 ZS661KS 512GB100/10016.0GB
Oppo A7 (2018) 64GB70/1004.0GB

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" is 512.0GB. Also the "Oppo A7 (2018) 64GB" is 64.0GB. Regarding storage capacity, the "ROG Phone 3 ZS661KS 512GB" has a much larger data storage capacity compared to the "Oppo A7 (2018) 64GB", with a roughly 448GB difference. In terms of the number of pictures you can save and the applications that you can install, the "ROG Phone 3 ZS661KS 512GB" is superior to the "Oppo A7 (2018) 64GB". If you are looking for a smartphone that can save more data, we recommend the "ROG Phone 3 ZS661KS 512GB" over the "Oppo A7 (2018) 64GB".

ScoreStorage size
ROG Phone 3 ZS661KS 512GB95/100512.0GB
Oppo A7 (2018) 64GB67/10064.0GB

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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.

"ROG Phone 3 ZS661KS 512GB" has a 64.0MP main camera. Also, "Oppo A7 (2018) 64GB" has a 13.0MP main camera. Comparing rear camera performance, the "ROG Phone 3 ZS661KS 512GB" has a much higher pixel count compared to the "Oppo A7 (2018) 64GB", with a roughly 51MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "ROG Phone 3 ZS661KS 512GB" is superior to the "Oppo A7 (2018) 64GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "ROG Phone 3 ZS661KS 512GB" over the "Oppo A7 (2018) 64GB".

ScoreRear-camera resolution
ROG Phone 3 ZS661KS 512GB100/10064.0MP
Oppo A7 (2018) 64GB61/10013.0MP

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 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.

"ROG Phone 3 ZS661KS 512GB" has an 24.0MP front camera and "Oppo A7 (2018) 64GB" has an 16.0MP front camera. Comparing rear camera performance, the front camera of the "ROG Phone 3 ZS661KS 512GB" has a much higher pixel count compared to the "Oppo A7 (2018) 64GB", with a roughly 8MP difference. As a result, the "ROG Phone 3 ZS661KS 512GB" is more suited than the "Oppo A7 (2018) 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 "ROG Phone 3 ZS661KS 512GB" over the "Oppo A7 (2018) 64GB".

ScoreFront-camera resolution
ROG Phone 3 ZS661KS 512GB86/10024.0MP
Oppo A7 (2018) 64GB75/10016.0MP

"ROG Phone 3 ZS661KS 512GB" and "Oppo A7 (2018) 64GB", performance comparison by specification sheet

ROG Phone 3 ZS661KS 512GBOppo A7 (2018) 64GB
ImageROG Phone 3 ZS661KS 512GBOppo A7 (2018) 64GB
MakerAsusOppo
Release date2020-08-222018-11
ColorBlack GlareGlazing Blue/Dazzling Gold/Rose Pink
OSAndroidAndroid
Dimensions (width x height x thickness)78.0mm x 171.0mm x 9.9mm75.4mm x 155.9mm x 8.1mm
Weight240.0g168.0g
Display size6.59inch6.2inch
Display typeAMOLEDIPS LCD
Screen resolution (width x height)1080 x 2340720 x 1520
Pixel density391ppi271ppi
Battery capacity6000.0mAh4230.0mAh
ChipsetQualcomm SM8250 Snapdragon 865+Qualcomm SDM450 Snapdragon 450
CPU specs3.1GHz+2.42GHz+1.8GHz×8(8.0-cores)1.8GHz×8(8.0-cores)
RAM size16.0GB4.0GB
Storage size512.0GB64.0GB
Rear-camera resolution64.0MP13.0MP
Front-camera resolution24.0MP16.0MP

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