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Vivo V7 (2017) 32GB vs vivo X21 UD (2018) 128GB: Specs & Scores

Created date: 2018-09-30 21:56:27, Updated date: 2021-10-20 17:47:44

vivo V7 (2017) 32GBvivo X21 UD (2018) 128GB
vivo V7 (2017) 32GBvivo X21 UD (2018) 128GB

Are you having trouble comparing the differences in features and performance of the "vivo V7 (2017) 32GB" and "vivo X21 UD (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.

vivo V7 (2017) 32GBvivo X21 UD (2018) 128GB
vivo V7 (2017) 32GB

vivo X21 UD (2018) 128GB

General rating:

67.6/100

(The 1103th of all smartphones)

71.1/100

(The 1038th of all smartphones)

Portability
66/100
64/100
Weight
74/100
67/100
Size of screen
85/100
90/100
Screen clarity
57/100
84/100
Battery duration
65/100
68/100
Processing capability
88/100
90/100
Memory capacity
70/100
90/100
Storage capacity
55/100
90/100
Rear camera function
68/100
59/100
Front camera function
86/100
70/100

Compare Performance and Usability

Size comparison of "vivo V7 (2017) 32GB" and "vivo X21 UD (2018) 128GB". 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 "vivo V7 (2017) 32GB" is 72.8mm wide, 149.3mm tall, and 7.9mm thick. The "vivo X21 UD (2018) 128GB" is 74.8mm tall, 154.5mm wide, and 7.4mm thick.

There is no real difference between the "vivo V7 (2017) 32GB" and "vivo X21 UD (2018) 128GB" 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 "vivo V7 (2017) 32GB" and "vivo X21 UD (2018) 128GB", 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 "vivo V7 (2017) 32GB"and "vivo X21 UD (2018) 128GB". 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)
vivo V7 (2017) 32GB66/10072.8mm x 149.3mm x 7.9mm
vivo X21 UD (2018) 128GB64/10074.8mm x 154.5mm x 7.4mm

Which one is easier to hold, "vivo V7 (2017) 32GB" or "vivo X21 UD (2018) 128GB"? 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 "vivo V7 (2017) 32GB" weighs 139.0g. The "vivo X21 UD (2018) 128GB" clocks in at 156.2g. Comparing the weight of the main unit, the "vivo V7 (2017) 32GB" is a lighter phone than the "vivo X21 UD (2018) 128GB", with a difference of approximately 17.1g. Therefore, there is less strain on your fingers and wrists even when you use your phone for a long time on the "vivo V7 (2017) 32GB" compared to the "vivo X21 UD (2018) 128GB". For this reason, the "vivo V7 (2017) 32GB" is recommended.

ScoreWeight
vivo V7 (2017) 32GB74/100139.0g
vivo X21 UD (2018) 128GB67/100156.2g

Which is better in terms of display, "vivo V7 (2017) 32GB" or "vivo X21 UD (2018) 128GB"?

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 "vivo V7 (2017) 32GB" is 5.7inch, and 6.28inch on the "vivo X21 UD (2018) 128GB". Comparing the size of the display and screen, the screen size of the "vivo X21 UD (2018) 128GB" is larger than that of the "vivo V7 (2017) 32GB", with a difference of approximately 0.58inch. As a result, there will be unintended touches on the "vivo X21 UD (2018) 128GB" compared to the "vivo V7 (2017) 32GB" and it is possible to enjoy games and videos on a large screen. For this reason, the "vivo X21 UD (2018) 128GB" is recommended.

ScoreDisplay size
vivo V7 (2017) 32GB85/1005.7inch
vivo X21 UD (2018) 128GB90/1006.28inch

Which one has a better display, "vivo V7 (2017) 32GB" or "vivo X21 UD (2018) 128GB"?

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 "vivo V7 (2017) 32GB" has a 720 x 1440 resolution and a pixel density of 282ppi. The "vivo X21 UD (2018) 128GB", on the other hand, has a screen resolution of 1080 x 2280 and a pixel density of 401ppi. Comparing the screen definition, the "vivo X21 UD (2018) 128GB" has a much higher pixel density than the "vivo V7 (2017) 32GB", with a difference of about 119ppi. The screen on the "vivo X21 UD (2018) 128GB" is clear and crisp, and puts less strain on the eyes than that of the "vivo V7 (2017) 32GB". If you want to choose a smartphone that is gentle on your eyes with a display that shows text and images clearly, we recommend that you buy the "vivo X21 UD (2018) 128GB" rather than the "vivo V7 (2017) 32GB".

ScorePixel density
vivo V7 (2017) 32GB57/100282ppi
vivo X21 UD (2018) 128GB84/100401ppi

How is the battery duration of "vivo V7 (2017) 32GB" different from that of "vivo X21 UD (2018) 128GB" ? 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 "vivo V7 (2017) 32GB" has a battery capacity of 3000.0mAh, while the "vivo X21 UD (2018) 128GB" has a 3200.0mAh battery. The batteries of both the "vivo V7 (2017) 32GB" and "vivo X21 UD (2018) 128GB" perform to the same extent. There is also no difference in the battery capacities of the "vivo V7 (2017) 32GB" and the "vivo X21 UD (2018) 128GB". Since their battery life is practically identical, it would be better to compare them based on other aspects of performance and function.

ScoreBattery capacity
vivo V7 (2017) 32GB65/1003000.0mAh
vivo X21 UD (2018) 128GB68/1003200.0mAh

Which is better in terms of CPU function, "vivo V7 (2017) 32GB" or "vivo X21 UD (2018) 128GB"?

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 "vivo V7 (2017) 32GB" is equipped with a Qualcomm SDM450 Snapdragon 450 processor, and its performance speed is 1.8GHz×8(8.0-cores). The "vivo X21 UD (2018) 128GB" uses an Qualcomm SDM660 Snapdragon 660 CPU that performs at a speed of 2.2GHz+1.8GHz×8(8.0-cores). There is also no real discrepancy between the CPU performances of the "vivo V7 (2017) 32GB" and "vivo X21 UD (2018) 128GB". 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
vivo V7 (2017) 32GB88/1001.8GHz×8(8.0-cores)
vivo X21 UD (2018) 128GB90/1002.2GHz+1.8GHz×8(8.0-cores)

How is "vivo V7 (2017) 32GB" different from "vivo X21 UD (2018) 128GB" 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 "vivo V7 (2017) 32GB" has 4.0GB of memory. The "vivo X21 UD (2018) 128GB", on the other hand, has 6.0GB. As for memory performance, the "vivo X21 UD (2018) 128GB" has a larger memory capacity than the "vivo V7 (2017) 32GB", with a difference of about 2GB. The "vivo X21 UD (2018) 128GB" has better multitasking, less crashing, and runs 3D games and VR video better than the "vivo V7 (2017) 32GB". If you're looking for a smartphone that will remain stable even when you are using multiple apps at the same time, and which will allow you to play 3D games and VR video comfortably, we recommend that you buy the "vivo X21 UD (2018) 128GB" rather than the "vivo V7 (2017) 32GB".

ScoreRAM size
vivo V7 (2017) 32GB70/1004.0GB
vivo X21 UD (2018) 128GB90/1006.0GB

Which has a better storage capacity, "vivo V7 (2017) 32GB" or "vivo X21 UD (2018) 128GB"?

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 "vivo V7 (2017) 32GB" has 32.0GB of storage, while the "vivo X21 UD (2018) 128GB" has 128.0GB. In terms of ROM and data storage, the "vivo X21 UD (2018) 128GB" has a much larger capacity than the "vivo V7 (2017) 32GB", with a difference of about 96GB. The "vivo X21 UD (2018) 128GB" can save more photos and keep more apps installed than the "vivo V7 (2017) 32GB". If you're searching for a smartphone that can store more data, we recommended that you buy the "vivo X21 UD (2018) 128GB" rather than the "vivo V7 (2017) 32GB".

ScoreStorage size
vivo V7 (2017) 32GB55/10032.0GB
vivo X21 UD (2018) 128GB90/100128.0GB

Compare the rear cameras of "vivo V7 (2017) 32GB" and "vivo X21 UD (2018) 128GB". 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 "vivo V7 (2017) 32GB" has 16.0MP. The "vivo X21 UD (2018) 128GB" has 12.0MP. Comparing the rear camera performance, the number of pixels of the "vivo V7 (2017) 32GB" is higher than the "vivo X21 UD (2018) 128GB", with a difference of approximately 4MP. As a result, the "vivo V7 (2017) 32GB" can take higher quality scenery photos and make clear prints compared to the "vivo X21 UD (2018) 128GB". Therefore, the "vivo V7 (2017) 32GB" is recommended.

ScoreRear-camera resolution
vivo V7 (2017) 32GB68/10016.0MP
vivo X21 UD (2018) 128GB59/10012.0MP

Which has a front camera with better picture quality, "vivo V7 (2017) 32GB" or "vivo X21 UD (2018) 128GB"?

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 "vivo V7 (2017) 32GB" has a resolution of 24.0MP. The "vivo X21 UD (2018) 128GB"'s has 12.0MP. The front-facing camera of the "vivo V7 (2017) 32GB" has a significantly higher number of pixels than the "vivo X21 UD (2018) 128GB", with a difference of about 12MP. Therefore, the "vivo V7 (2017) 32GB" is more suitable for taking photos and videos than the "vivo X21 UD (2018) 128GB". If you want to take and print high-quality selfies, we recommend buying the "vivo V7 (2017) 32GB" rather than the "vivo X21 UD (2018) 128GB".

ScoreFront-camera resolution
vivo V7 (2017) 32GB86/10024.0MP
vivo X21 UD (2018) 128GB70/10012.0MP

Compare Performance Specs

vivo V7 (2017) 32GBvivo X21 UD (2018) 128GB
Imagevivo V7 (2017) 32GBvivo X21 UD (2018) 128GB
Makervivovivo
Release date2017-122018-03
ColorChampagne Gold/Matte Black/Energetic BlueBlack/Ruby Red
OSAndroidAndroid
Dimensions (width x height x thickness)72.8mm x 149.3mm x 7.9mm74.8mm x 154.5mm x 7.4mm
Weight139.0g156.2g
Display size5.7inch6.28inch
Display typeIPS LCDSuper AMOLED
Screen resolution (width x height)720 x 14401080 x 2280
Pixel density282ppi401ppi
Battery capacity3000.0mAh3200.0mAh
ChipsetQualcomm SDM450 Snapdragon 450Qualcomm SDM660 Snapdragon 660
CPU specs1.8GHz×8(8.0-cores)2.2GHz+1.8GHz×8(8.0-cores)
RAM size4.0GB6.0GB
Storage size32.0GB128.0GB
Rear-camera resolution16.0MP12.0MP
Front-camera resolution24.0MP12.0MP

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