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Which is better, Oppo K9 (2021) 256GB or Honor 8X (2018) 128GB? We compared their features and specs in detail

Created date: 2021-05-06 14:43:55

Oppo K9 (2021) 256GBHonor 8X (2018) 128GB
Oppo K9 (2021) 256GBHonor 8X (2018) 128GB

Are you having trouble comparing the differences in features and performance of the "Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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.

Oppo K9 (2021) 256GBHonor 8X (2018) 128GB
Oppo K9 (2021) 256GB

Honor 8X (2018) 128GB

General rating:
Holding comfortrating-image3.3
65/100
rating-image3.0
60/100
Weightrating-image3.1
61/100
rating-image3.0
60/100
Screen sizerating-image4.5
90/100
rating-image4.5
90/100
Display qualityrating-image4.3
85/100
rating-image4.2
84/100
Battery liferating-image
- /100
rating-image3.8
76/100
Processing powerrating-image4.8
96/100
rating-image4.5
89/100
Memory capacityrating-image4.7
93/100
rating-image4.5
90/100
Storage capacityrating-image4.6
91/100
rating-image4.5
90/100
Rear camera performancerating-image5.0
100/100
rating-image3.9
78/100
Front camera performancerating-image4.9
97/100
rating-image3.8
75/100

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", performance comparison

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB" 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 "Oppo K9 (2021) 256GB" has a width of 73.4mm, a length of 159.1mm, and a thickness of 7.9mm. Also, the "Honor 8X (2018) 128GB" has a width of 76.6mm, a length of 160.4mm, and a thickness of 7.8mm.

Comparing the width and thickness of the body, the "Oppo K9 (2021) 256GB" is smaller and more compact compared to the "Honor 8X (2018) 128GB". For that reason, the "Oppo K9 (2021) 256GB" is easier to grip firmly and carry one-handed than the "Honor 8X (2018) 128GB". For that reason, we recommend the "Oppo K9 (2021) 256GB".

Comparing the width and thickness of the body, there isn't a large difference in size between the "Oppo K9 (2021) 256GB" and the "Honor 8X (2018) 128GB". 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 "Oppo K9 (2021) 256GB" and the "Honor 8X (2018) 128GB". 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)
Oppo K9 (2021) 256GB65/10073.4mm x 159.1mm x 7.9mm
Honor 8X (2018) 128GB60/10076.6mm x 160.4mm x 7.8mm

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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 "Oppo K9 (2021) 256GB" is about 172.0g, and the weight of the "Honor 8X (2018) 128GB" is about 175.0g. Comparing the weight of the two devices, there isn't much difference in weight between the "Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB". That's why the likelihood of fatigue in the fingers and wrists after extended use 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.

ScoreWeight
Oppo K9 (2021) 256GB61/100172.0g
Honor 8X (2018) 128GB60/100175.0g

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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 "Oppo K9 (2021) 256GB" has a 6.43inch display. Also, the "Honor 8X (2018) 128GB" has a 6.5inch display. Comparing the screen size, there is a negligible difference in screen size between the "Oppo K9 (2021) 256GB" and the "Honor 8X (2018) 128GB". 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
Oppo K9 (2021) 256GB90/1006.43inch
Honor 8X (2018) 128GB90/1006.5inch

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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 "Oppo K9 (2021) 256GB" is 1080 x 2400, and pixel density is 409ppi. Also, the resolution on the "Honor 8X (2018) 128GB" is 1080 x 2340, and pixel density is 396ppi. Comparing the pixel count, the difference in pixel density between the "Oppo K9 (2021) 256GB" and the "Honor 8X (2018) 128GB" 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
Oppo K9 (2021) 256GB85/100409ppi
Honor 8X (2018) 128GB84/100396ppi

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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.

ScoreBattery capacity
Oppo K9 (2021) 256GB - /100
Honor 8X (2018) 128GB76/1003750.0mAh

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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 "Oppo K9 (2021) 256GB"'s CPU is a Qualcomm SM7250, with performance measured at 2.8GHz+2.4GHz+1.8GHz×8(8.0-cores). Also, the "Honor 8X (2018) 128GB"'s CPU is a Hisilicon Kirin 710, with performance measured at 2.2GHz+1.7GHz×8(8.0-cores). Comparing CPU performance, the "Oppo K9 (2021) 256GB" has higher specs compared to the "Honor 8X (2018) 128GB". For that reason, the "Oppo K9 (2021) 256GB" allows for more comfortable use of apps, and games that run more smoothly. That's why we recommend the "Oppo K9 (2021) 256GB" over the "Honor 8X (2018) 128GB".

ScoreCPU specs
Oppo K9 (2021) 256GB96/1002.8GHz+2.4GHz+1.8GHz×8(8.0-cores)
Honor 8X (2018) 128GB89/1002.2GHz+1.7GHz×8(8.0-cores)

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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 "Oppo K9 (2021) 256GB" is 8.0GB and the weight of the "Honor 8X (2018) 128GB" is 6.0GB. Comparing the devices in terms of RAM, there is almost no difference in the amount of RAM of the "Oppo K9 (2021) 256GB" and the "Honor 8X (2018) 128GB". For that reason they have about the same level of multitasking performance and 3D game and VR smoothness. That's why it is better to make a comparison in terms of other aspects of performance and functionality.

ScoreRAM size
Oppo K9 (2021) 256GB93/1008.0GB
Honor 8X (2018) 128GB90/1006.0GB

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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 "Oppo K9 (2021) 256GB" is 256.0GB. Also the "Honor 8X (2018) 128GB" is 128.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB". As a result, you can save roughly the same amount of pictures, and install roughly the same amount of applications, on either phone. You are better off comparing them based on other aspects of performance and functionality.

ScoreStorage size
Oppo K9 (2021) 256GB91/100256.0GB
Honor 8X (2018) 128GB90/100128.0GB

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB" 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.

"Oppo K9 (2021) 256GB" has a 64.0MP main camera. Also, "Honor 8X (2018) 128GB" has a 20.0MP main camera. Comparing rear camera performance, the "Oppo K9 (2021) 256GB" has a much higher pixel count compared to the "Honor 8X (2018) 128GB", with a roughly 44MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "Oppo K9 (2021) 256GB" is superior to the "Honor 8X (2018) 128GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "Oppo K9 (2021) 256GB" over the "Honor 8X (2018) 128GB".

ScoreRear-camera resolution
Oppo K9 (2021) 256GB100/10064.0MP
Honor 8X (2018) 128GB78/10020.0MP

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", 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.

"Oppo K9 (2021) 256GB" has an 32.0MP front camera and "Honor 8X (2018) 128GB" has an 16.0MP front camera. Comparing rear camera performance, the front camera of the "Oppo K9 (2021) 256GB" has a much higher pixel count compared to the "Honor 8X (2018) 128GB", with a roughly 16MP difference. As a result, the "Oppo K9 (2021) 256GB" is more suited than the "Honor 8X (2018) 128GB" 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 "Oppo K9 (2021) 256GB" over the "Honor 8X (2018) 128GB".

ScoreFront-camera resolution
Oppo K9 (2021) 256GB97/10032.0MP
Honor 8X (2018) 128GB75/10016.0MP

"Oppo K9 (2021) 256GB" and "Honor 8X (2018) 128GB", performance comparison by specification sheet

Oppo K9 (2021) 256GBHonor 8X (2018) 128GB
ImageOppo K9 (2021) 256GBHonor 8X (2018) 128GB
MakerOppoHonor
Release date2021-05-112018-09
ColorBlack/AuroraBlack/Blue/Red/Pink
OSAndroidAndroid
Dimensions (width x height x thickness)73.4mm x 159.1mm x 7.9mm76.6mm x 160.4mm x 7.8mm
Weight172.0g175.0g
Display size6.43inch6.5inch
Display typeSuper AMOLEDLTPS IPS LCD
Screen resolution (width x height)1080 x 24001080 x 2340
Pixel density409ppi396ppi
ChipsetQualcomm SM7250Hisilicon Kirin 710
CPU specs2.8GHz+2.4GHz+1.8GHz×8(8.0-cores)2.2GHz+1.7GHz×8(8.0-cores)
RAM size8.0GB6.0GB
Storage size256.0GB128.0GB
Rear-camera resolution64.0MP20.0MP
Front-camera resolution32.0MP16.0MP

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