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Vivo Y91 (2018) 32GB vs Xperia XZ2 SO-03K docomo 64GB

Created date: 2018-12-15 23:57:03, Updated date: 2020-04-15 21:35:21

vivo Y91 (2018) 32GBXperia XZ2 SO-03K docomo 64GB
vivo Y91 (2018) 32GBXperia XZ2 SO-03K docomo 64GB

Are you having trouble comparing the differences in features and performance of the "vivo Y91 (2018) 32GB" 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.

vivo Y91 (2018) 32GBXperia XZ2 SO-03K docomo 64GB
vivo Y91 (2018) 32GB

Xperia XZ2 SO-03K docomo 64GB

General rating:
Holding comfortrating-image3.1
62/100
rating-image3.1
62/100
Weightrating-image3.2
64/100
rating-image2.6
51/100
Screen sizerating-image4.5
90/100
rating-image4.3
85/100
Display qualityrating-image2.7
54/100
rating-image4.3
85/100
Battery liferating-image4.0
80/100
rating-image3.3
65/100
Processing powerrating-image3.6
71/100
rating-image4.5
89/100
Memory capacityrating-image3.0
60/100
rating-image3.5
70/100
Storage capacityrating-image2.8
55/100
rating-image3.4
67/100
Rear camera performancerating-image3.1
61/100
rating-image3.8
76/100
Front camera performancerating-image2.9
58/100
rating-image2.5
50/100

"vivo Y91 (2018) 32GB" and "Xperia XZ2 SO-03K docomo 64GB", performance comparison

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" has a width of 75.1mm, a length of 155.1mm, and a thickness of 8.3mm. 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 "vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" 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)
vivo Y91 (2018) 32GB62/10075.1mm x 155.1mm x 8.3mm
Xperia XZ2 SO-03K docomo 64GB62/10072.0mm x 153.0mm x 11.1mm

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" is about 163.5g, and the weight of the "Xperia XZ2 SO-03K docomo 64GB" is about 198.0g. Comparing the weight of the two devices, the "vivo Y91 (2018) 32GB" is a considerably lighter smart phone than the "Xperia XZ2 SO-03K docomo 64GB", and there is a difference of about 34.5g. In terms of the burden placed upon your fingers and wrist, the "vivo Y91 (2018) 32GB" is superior to the "Xperia XZ2 SO-03K docomo 64GB". 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 "vivo Y91 (2018) 32GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreWeight
vivo Y91 (2018) 32GB64/100163.5g
Xperia XZ2 SO-03K docomo 64GB51/100198.0g

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" has a 6.22inch display. Also, the "Xperia XZ2 SO-03K docomo 64GB" has a 5.7inch display. Comparing the screen size, the "vivo Y91 (2018) 32GB" has a larger screen compared to the "Xperia XZ2 SO-03K docomo 64GB", with a roughly 0.51inch difference. As a result, the user is less likely to mistap when using apps on the "vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB".

ScoreDisplay size
vivo Y91 (2018) 32GB90/1006.22inch
Xperia XZ2 SO-03K docomo 64GB85/1005.7inch

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" is 720 x 1520, and pixel density is 270ppi. 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 "Xperia XZ2 SO-03K docomo 64GB" has much higher pixel density than the "vivo Y91 (2018) 32GB", with a difference of roughly 153ppi. In terms of having better picture quality and exerting less strain on the eyes, the "Xperia XZ2 SO-03K docomo 64GB" is superior to the "vivo Y91 (2018) 32GB". If you are looking for a smartphone that is easy on the eyes, displaying texts and pictures clearly without any blurring, we recommend the "Xperia XZ2 SO-03K docomo 64GB" over the "vivo Y91 (2018) 32GB".

ScorePixel density
vivo Y91 (2018) 32GB54/100270ppi
Xperia XZ2 SO-03K docomo 64GB85/100423ppi

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" is 4030.0mAh, and the "Xperia XZ2 SO-03K docomo 64GB" is 3060.0mAh. Regarding battery capacity, the "vivo Y91 (2018) 32GB" has greater battery capacity than the "Xperia XZ2 SO-03K docomo 64GB", with a 970mAh difference. Since the "vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" over the "Xperia XZ2 SO-03K docomo 64GB".

ScoreBattery capacity
vivo Y91 (2018) 32GB80/1004030.0mAh
Xperia XZ2 SO-03K docomo 64GB65/1003060.0mAh

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB"'s CPU is a Qualcomm SDM439 Snapdragon 439, with performance measured at 1.95GHz+1.45GHz×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, the "Xperia XZ2 SO-03K docomo 64GB" has considerably higher specs than the "vivo Y91 (2018) 32GB". In terms of being able to comfortably play games and run apps smoothly, the "Xperia XZ2 SO-03K docomo 64GB" is superior to the "vivo Y91 (2018) 32GB". If you're going for a high spec smart phone that runs smoothly and comfortably handles games, we recommend purchasing the "Xperia XZ2 SO-03K docomo 64GB" over the "vivo Y91 (2018) 32GB".

ScoreCPU specs
vivo Y91 (2018) 32GB71/1001.95GHz+1.45GHz×8(8.0-cores)
Xperia XZ2 SO-03K docomo 64GB89/1002.8GHz×8(8.0-cores)

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" is 3.0GB and the weight of the "Xperia XZ2 SO-03K docomo 64GB" is 4.0GB. Comparing the devices in terms of RAM, the "Xperia XZ2 SO-03K docomo 64GB" has a significantly larger amount of RAM than the "vivo Y91 (2018) 32GB", with a difference of about 1GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "Xperia XZ2 SO-03K docomo 64GB" is superior to the "vivo Y91 (2018) 32GB". 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 "Xperia XZ2 SO-03K docomo 64GB" over the "vivo Y91 (2018) 32GB".

ScoreRAM size
vivo Y91 (2018) 32GB60/1003.0GB
Xperia XZ2 SO-03K docomo 64GB70/1004.0GB

"vivo Y91 (2018) 32GB" 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 "vivo Y91 (2018) 32GB" is 32.0GB. Also the "Xperia XZ2 SO-03K docomo 64GB" is 64.0GB. Regarding storage capacity, the "Xperia XZ2 SO-03K docomo 64GB" has a much larger data storage capacity compared to the "vivo Y91 (2018) 32GB", with a roughly 32GB difference. In terms of the number of pictures you can save and the applications that you can install, the "Xperia XZ2 SO-03K docomo 64GB" is superior to the "vivo Y91 (2018) 32GB". If you are looking for a smartphone that can save more data, we recommend the "Xperia XZ2 SO-03K docomo 64GB" over the "vivo Y91 (2018) 32GB".

ScoreStorage size
vivo Y91 (2018) 32GB55/10032.0GB
Xperia XZ2 SO-03K docomo 64GB67/10064.0GB

"vivo Y91 (2018) 32GB" 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.

"vivo Y91 (2018) 32GB" has a 13.0MP main camera. Also, "Xperia XZ2 SO-03K docomo 64GB" has a 19.2MP main camera. Comparing rear camera performance, the "Xperia XZ2 SO-03K docomo 64GB" has a much higher pixel count compared to the "vivo Y91 (2018) 32GB", with a roughly 6.1MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "Xperia XZ2 SO-03K docomo 64GB" is superior to the "vivo Y91 (2018) 32GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "Xperia XZ2 SO-03K docomo 64GB" over the "vivo Y91 (2018) 32GB".

ScoreRear-camera resolution
vivo Y91 (2018) 32GB61/10013.0MP
Xperia XZ2 SO-03K docomo 64GB76/10019.2MP

"vivo Y91 (2018) 32GB" 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.

"vivo Y91 (2018) 32GB" has an 8.0MP front camera and "Xperia XZ2 SO-03K docomo 64GB" has an 5.0MP front camera. Comparing rear camera performance, the front camera of the "vivo Y91 (2018) 32GB" has a higher pixel count than the "Xperia XZ2 SO-03K docomo 64GB", with a roughly 3MP difference. As a result, the "vivo Y91 (2018) 32GB" is better able to take high quality selfies than the "Xperia XZ2 SO-03K docomo 64GB", and the pictures will look cleaner when printed. Therefore, we recommend the "vivo Y91 (2018) 32GB".

ScoreFront-camera resolution
vivo Y91 (2018) 32GB58/1008.0MP
Xperia XZ2 SO-03K docomo 64GB50/1005.0MP

"vivo Y91 (2018) 32GB" and "Xperia XZ2 SO-03K docomo 64GB", performance comparison by specification sheet

vivo Y91 (2018) 32GBXperia XZ2 SO-03K docomo 64GB
Imagevivo Y91 (2018) 32GBXperia XZ2 SO-03K docomo 64GB
Makervivo
Release date2018-112018-05-31
ColorStarry Black/Ocean BlueDeep Green/Liquid Black/Liquid Silver/Ash Pink
OSAndroidAndroid
Dimensions (width x height x thickness)75.1mm x 155.1mm x 8.3mm72.0mm x 153.0mm x 11.1mm
Weight163.5g198.0g
Display size6.22inch5.7inch
Display typeIPS LCDfor mobile
Screen resolution (width x height)720 x 15201080 x 2160
Pixel density270ppi423ppi
Battery capacity4030.0mAh3060.0mAh
ChipsetQualcomm SDM439 Snapdragon 439Snapdragon 845 SDM845
CPU specs1.95GHz+1.45GHz×8(8.0-cores)2.8GHz×8(8.0-cores)
RAM size3.0GB4.0GB
Storage size32.0GB64.0GB
Rear-camera resolution13.0MP19.2MP
Front-camera resolution8.0MP5.0MP

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