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Vivo X30 (2019) 256GB vs. Lava Z91 (2018) 32GB Specs & Scores

Created date: 2019-12-15 15:44:22, Updated date: 2021-10-20 18:35:59

vivo X30 (2019) 256GBLava Z91 (2018) 32GB
vivo X30 (2019) 256GBLava Z91 (2018) 32GB

Are you having trouble comparing the differences in features and performance of the "vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GBLava Z91 (2018) 32GB
vivo X30 (2019) 256GB

Lava Z91 (2018) 32GB

General rating:
Holding comfortrating-image3.1
62/100
rating-image3.3
66/100
Weightrating-image2.6
51/100
rating-image3.6
71/100
Screen sizerating-image4.5
90/100
rating-image4.3
85/100
Display qualityrating-image4.3
85/100
rating-image2.9
57/100
Battery liferating-image4.1
81/100
rating-image3.3
65/100
Processing powerrating-image4.6
92/100
rating-image2.5
50/100
Memory capacityrating-image4.7
93/100
rating-image3.0
60/100
Storage capacityrating-image4.6
91/100
rating-image2.8
55/100
Rear camera performancerating-image5.0
100/100
rating-image3.1
61/100
Front camera performancerating-image4.9
97/100
rating-image2.9
58/100

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", performance comparison

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB" 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 X30 (2019) 256GB" has a width of 74.1mm, a length of 158.5mm, and a thickness of 8.8mm. Also, the "Lava Z91 (2018) 32GB" has a width of 72.9mm, a length of 152.0mm, and a thickness of 7.7mm.

Comparing the width and thickness of the body, there isn't much difference between the "vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB" 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 X30 (2019) 256GB" and the "Lava Z91 (2018) 32GB". 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 X30 (2019) 256GB" and the "Lava Z91 (2018) 32GB". 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 X30 (2019) 256GB62/10074.1mm x 158.5mm x 8.8mm
Lava Z91 (2018) 32GB66/10072.9mm x 152.0mm x 7.7mm

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB" is about 196.5g, and the weight of the "Lava Z91 (2018) 32GB" is about 147.0g. Comparing the weight of the two devices, the "Lava Z91 (2018) 32GB" is a considerably lighter smart phone than the "vivo X30 (2019) 256GB", and there is a difference of about 49.5g. In terms of the burden placed upon your fingers and wrist, the "Lava Z91 (2018) 32GB" is superior to the "vivo X30 (2019) 256GB". 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 "Lava Z91 (2018) 32GB" over the "vivo X30 (2019) 256GB".

ScoreWeight
vivo X30 (2019) 256GB51/100196.5g
Lava Z91 (2018) 32GB71/100147.0g

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB" has a 6.44inch display. Also, the "Lava Z91 (2018) 32GB" has a 5.7inch display. Comparing the screen size, the "vivo X30 (2019) 256GB" has a larger screen compared to the "Lava Z91 (2018) 32GB", with a roughly 0.74inch difference. As a result, the user is less likely to mistap when using apps on the "vivo X30 (2019) 256GB" than on the "Lava Z91 (2018) 32GB", and is also able to enjoy videos and games on a larger screen. Therefore, we recommend the "vivo X30 (2019) 256GB".

ScoreDisplay size
vivo X30 (2019) 256GB90/1006.44inch
Lava Z91 (2018) 32GB85/1005.7inch

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB" is 1080 x 2400, and pixel density is 408ppi. Also, the resolution on the "Lava Z91 (2018) 32GB" is 720 x 1440, and pixel density is 282ppi. Comparing the pixel count, the "vivo X30 (2019) 256GB" has much higher pixel density than the "Lava Z91 (2018) 32GB", with a difference of roughly 126ppi. In terms of having better picture quality and exerting less strain on the eyes, the "vivo X30 (2019) 256GB" is superior to the "Lava Z91 (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 "vivo X30 (2019) 256GB" over the "Lava Z91 (2018) 32GB".

ScorePixel density
vivo X30 (2019) 256GB85/100408ppi
Lava Z91 (2018) 32GB57/100282ppi

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB" is 4350.0mAh, and the "Lava Z91 (2018) 32GB" is 3000.0mAh. Regarding battery capacity, the "vivo X30 (2019) 256GB" has greater battery capacity than the "Lava Z91 (2018) 32GB", with a 1350mAh difference. Since the "vivo X30 (2019) 256GB" can be used for longer periods without recharging than the "Lava Z91 (2018) 32GB", it is great for outdoor use. If you want a smartphone with a longer battery life, we recommend the "vivo X30 (2019) 256GB" over the "Lava Z91 (2018) 32GB".

ScoreBattery capacity
vivo X30 (2019) 256GB81/1004350.0mAh
Lava Z91 (2018) 32GB65/1003000.0mAh

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB"'s CPU is a Exynos 980, with performance measured at 2.2GHz+1.8GHz×8(8.0-cores). Also, the "Lava Z91 (2018) 32GB"'s CPU is a Mediatek MT6739, with performance measured at 1.3GHz×4(4.0-cores). Comparing CPU performance, the "vivo X30 (2019) 256GB" has considerably higher specs than the "Lava Z91 (2018) 32GB". In terms of being able to comfortably play games and run apps smoothly, the "vivo X30 (2019) 256GB" is superior to the "Lava Z91 (2018) 32GB". If you're going for a high spec smart phone that runs smoothly and comfortably handles games, we recommend purchasing the "vivo X30 (2019) 256GB" over the "Lava Z91 (2018) 32GB".

ScoreCPU specs
vivo X30 (2019) 256GB92/1002.2GHz+1.8GHz×8(8.0-cores)
Lava Z91 (2018) 32GB50/1001.3GHz×4(4.0-cores)

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB" is 8.0GB and the weight of the "Lava Z91 (2018) 32GB" is 3.0GB. Comparing the devices in terms of RAM, the "vivo X30 (2019) 256GB" has a significantly larger amount of RAM than the "Lava Z91 (2018) 32GB", with a difference of about 5GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "vivo X30 (2019) 256GB" is superior to the "Lava Z91 (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 "vivo X30 (2019) 256GB" over the "Lava Z91 (2018) 32GB".

ScoreRAM size
vivo X30 (2019) 256GB93/1008.0GB
Lava Z91 (2018) 32GB60/1003.0GB

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB" is 256.0GB. Also the "Lava Z91 (2018) 32GB" is 32.0GB. Regarding storage capacity, the "vivo X30 (2019) 256GB" has a much larger data storage capacity compared to the "Lava Z91 (2018) 32GB", with a roughly 224GB difference. In terms of the number of pictures you can save and the applications that you can install, the "vivo X30 (2019) 256GB" is superior to the "Lava Z91 (2018) 32GB". If you are looking for a smartphone that can save more data, we recommend the "vivo X30 (2019) 256GB" over the "Lava Z91 (2018) 32GB".

ScoreStorage size
vivo X30 (2019) 256GB91/100256.0GB
Lava Z91 (2018) 32GB55/10032.0GB

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB" 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 X30 (2019) 256GB" has a 64.0MP main camera. Also, "Lava Z91 (2018) 32GB" has a 13.0MP main camera. Comparing rear camera performance, the "vivo X30 (2019) 256GB" has a much higher pixel count compared to the "Lava Z91 (2018) 32GB", with a roughly 51MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "vivo X30 (2019) 256GB" is superior to the "Lava Z91 (2018) 32GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "vivo X30 (2019) 256GB" over the "Lava Z91 (2018) 32GB".

ScoreRear-camera resolution
vivo X30 (2019) 256GB100/10064.0MP
Lava Z91 (2018) 32GB61/10013.0MP

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", 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 X30 (2019) 256GB" has an 32.0MP front camera and "Lava Z91 (2018) 32GB" has an 8.0MP front camera. Comparing rear camera performance, the front camera of the "vivo X30 (2019) 256GB" has a much higher pixel count compared to the "Lava Z91 (2018) 32GB", with a roughly 24MP difference. As a result, the "vivo X30 (2019) 256GB" is more suited than the "Lava Z91 (2018) 32GB" 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 "vivo X30 (2019) 256GB" over the "Lava Z91 (2018) 32GB".

ScoreFront-camera resolution
vivo X30 (2019) 256GB97/10032.0MP
Lava Z91 (2018) 32GB58/1008.0MP

"vivo X30 (2019) 256GB" and "Lava Z91 (2018) 32GB", performance comparison by specification sheet

vivo X30 (2019) 256GBLava Z91 (2018) 32GB
Imagevivo X30 (2019) 256GBLava Z91 (2018) 32GB
MakervivoLava
Release date2019-12-282018-03
ColorBlack/Peach/Light BlueBlue
OSAndroidAndroid
Dimensions (width x height x thickness)74.1mm x 158.5mm x 8.8mm72.9mm x 152.0mm x 7.7mm
Weight196.5g147.0g
Display size6.44inch5.7inch
Display typeSuper AMOLEDIPS LCD
Screen resolution (width x height)1080 x 2400720 x 1440
Pixel density408ppi282ppi
Battery capacity4350.0mAh3000.0mAh
ChipsetExynos 980Mediatek MT6739
CPU specs2.2GHz+1.8GHz×8(8.0-cores)1.3GHz×4(4.0-cores)
RAM size8.0GB3.0GB
Storage size256.0GB32.0GB
Rear-camera resolution64.0MP13.0MP
Front-camera resolution32.0MP8.0MP

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