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Should you buy Lava Z4 (2021) 64GB or vivo iQOO U3 128GB? Compare the differences in functions and specifications/performances thoroughly

Created date: 2021-01-11 18:11:55

Lava Z4 (2021) 64GBvivo iQOO U3 128GB
Lava Z4 (2021) 64GBvivo iQOO U3 128GB

How did the evaluations between the "Lava Z4 (2021) 64GB" and "vivo iQOO U3 128GB" differ when we compared the two? We reviewed each of the most commonly scrutinized features. If you are thinking about which smartphone to get, check out this review immediately!

Lava Z4 (2021) 64GBvivo iQOO U3 128GB
Lava Z4 (2021) 64GB

vivo iQOO U3 128GB

General rating:
Portabilityrating-image3.0
59/100
rating-image3.1
61/100
Weightrating-image2.7
54/100
rating-image2.8
56/100
Size of screenrating-image4.5
90/100
rating-image4.5
90/100
Screen clarityrating-image2.7
54/100
rating-image4.2
84/100
Battery durationrating-image
- /100
rating-image
- /100
Processing capabilityrating-image4.4
88/100
rating-image4.7
93/100
Memory capacityrating-image3.5
70/100
rating-image4.7
93/100
Storage capacityrating-image3.4
67/100
rating-image4.5
90/100
Rear camera functionrating-image3.1
61/100
rating-image4.9
97/100
Front camera functionrating-image3.8
75/100
rating-image4.1
81/100

Compare Performance and Usability

Size comparison of "Lava Z4 (2021) 64GB" and "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" is 75.8mm wide, 164.5mm tall, and 9.0mm thick. The "vivo iQOO U3 128GB" is 75.4mm tall, 164.2mm wide, and 8.4mm thick.

There is no real difference between the "Lava Z4 (2021) 64GB" and "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" and "vivo iQOO U3 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 "Lava Z4 (2021) 64GB"and "vivo iQOO U3 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)
Lava Z4 (2021) 64GB59/10075.8mm x 164.5mm x 9.0mm
vivo iQOO U3 128GB61/10075.4mm x 164.2mm x 8.4mm

Which one is easier to hold, "Lava Z4 (2021) 64GB" or "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" weighs 190.0g. The "vivo iQOO U3 128GB" clocks in at 185.5g. The "Lava Z4 (2021) 64GB" and "vivo iQOO U3 128GB" have around the same weight, so prolonged use will tire out fingers nd wrists to around the same degree. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreWeight
Lava Z4 (2021) 64GB54/100190.0g
vivo iQOO U3 128GB56/100185.5g

Which is better in terms of display, "Lava Z4 (2021) 64GB" or "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" is 6.51inch, and 6.58inch on the "vivo iQOO U3 128GB". The screens of the "Lava Z4 (2021) 64GB" and "vivo iQOO U3 128GB" are roughly the same size, and so the ease of pressing app buttons are the same on both devices. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreDisplay size
Lava Z4 (2021) 64GB90/1006.51inch
vivo iQOO U3 128GB90/1006.58inch

Which one has a better display, "Lava Z4 (2021) 64GB" or "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" has a 720 x 1600 resolution and a pixel density of 269ppi. The "vivo iQOO U3 128GB", on the other hand, has a screen resolution of 1080 x 2400 and a pixel density of 399ppi. Comparing the screen definition, the "vivo iQOO U3 128GB" has a much higher pixel density than the "Lava Z4 (2021) 64GB", with a difference of about 130ppi. The screen on the "vivo iQOO U3 128GB" is clear and crisp, and puts less strain on the eyes than that of the "Lava Z4 (2021) 64GB". 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 iQOO U3 128GB" rather than the "Lava Z4 (2021) 64GB".

ScorePixel density
Lava Z4 (2021) 64GB54/100269ppi
vivo iQOO U3 128GB84/100399ppi

How is the battery duration of "Lava Z4 (2021) 64GB" different from that of "vivo iQOO U3 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.

ScoreBattery capacity
Lava Z4 (2021) 64GB - /100
vivo iQOO U3 128GB - /100

Which is better in terms of CPU function, "Lava Z4 (2021) 64GB" or "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" is equipped with a MediaTek Helio G35 processor, and its performance speed is 2.3GHz+1.8GHz×8(8.0-cores). The "vivo iQOO U3 128GB" uses an MediaTek Dimensity 800U 5G CPU that performs at a speed of 2.4GHz+2.0GHz×8(8.0-cores). Comparing their CPU performance, the "vivo iQOO U3 128GB" has higher specs than the "Lava Z4 (2021) 64GB". For this reason, applications run better on the "vivo iQOO U3 128GB" compared to the "Lava Z4 (2021) 64GB", and games run very smoothly. Therefore, the "vivo iQOO U3 128GB" is recommended.

ScoreCPU specs
Lava Z4 (2021) 64GB88/1002.3GHz+1.8GHz×8(8.0-cores)
vivo iQOO U3 128GB93/1002.4GHz+2.0GHz×8(8.0-cores)

How is "Lava Z4 (2021) 64GB" different from "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" has 4.0GB of memory. The "vivo iQOO U3 128GB", on the other hand, has 8.0GB. As for memory performance, the "vivo iQOO U3 128GB" has a larger memory capacity than the "Lava Z4 (2021) 64GB", with a difference of about 4GB. The "vivo iQOO U3 128GB" has better multitasking, less crashing, and runs 3D games and VR video better than the "Lava Z4 (2021) 64GB". 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 iQOO U3 128GB" rather than the "Lava Z4 (2021) 64GB".

ScoreRAM size
Lava Z4 (2021) 64GB70/1004.0GB
vivo iQOO U3 128GB93/1008.0GB

Which has a better storage capacity, "Lava Z4 (2021) 64GB" or "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" has 64.0GB of storage, while the "vivo iQOO U3 128GB" has 128.0GB. In terms of ROM and data storage, the "vivo iQOO U3 128GB" has a much larger capacity than the "Lava Z4 (2021) 64GB", with a difference of about 64GB. The "vivo iQOO U3 128GB" can save more photos and keep more apps installed than the "Lava Z4 (2021) 64GB". If you're searching for a smartphone that can store more data, we recommended that you buy the "vivo iQOO U3 128GB" rather than the "Lava Z4 (2021) 64GB".

ScoreStorage size
Lava Z4 (2021) 64GB67/10064.0GB
vivo iQOO U3 128GB90/100128.0GB

Compare the rear cameras of "Lava Z4 (2021) 64GB" and "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" has 13.0MP. The "vivo iQOO U3 128GB" has 48.0MP. The rear-facing camera of the "vivo iQOO U3 128GB" also has a higher pixel count than the "Lava Z4 (2021) 64GB", with a difference of about 35MP. The "vivo iQOO U3 128GB" is more capable than the "Lava Z4 (2021) 64GB" of taking high-definition photos and videos, and produces better results when printing out the photos you have taken. If you want a smartphone that is designed for video and photography, we recommend buying the "vivo iQOO U3 128GB" rather than the "Lava Z4 (2021) 64GB".

ScoreRear-camera resolution
Lava Z4 (2021) 64GB61/10013.0MP
vivo iQOO U3 128GB97/10048.0MP

Which has a front camera with better picture quality, "Lava Z4 (2021) 64GB" or "vivo iQOO U3 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 "Lava Z4 (2021) 64GB" has a resolution of 16.0MP. The "vivo iQOO U3 128GB"'s has 20.0MP. Comparing the front-facing camera performance, the number of pixels of the front-facing camera on the "vivo iQOO U3 128GB" is higher than the "Lava Z4 (2021) 64GB", with a difference of approximately 4MP. For this reason, it is possible to take higher quality selfies and make clear prints with the "vivo iQOO U3 128GB" than the "Lava Z4 (2021) 64GB". Therefore, the "vivo iQOO U3 128GB" is recommended.

ScoreFront-camera resolution
Lava Z4 (2021) 64GB75/10016.0MP
vivo iQOO U3 128GB81/10020.0MP

Compare Performance Specs

Lava Z4 (2021) 64GBvivo iQOO U3 128GB
ImageLava Z4 (2021) 64GBvivo iQOO U3 128GB
MakerLavavivo
Release date2021-01-112020-12-18
ColorBlue/RedWhite/Gray/Aurora
OSAndroidAndroid
Dimensions (width x height x thickness)75.8mm x 164.5mm x 9.0mm75.4mm x 164.2mm x 8.4mm
Weight190.0g185.5g
Display size6.51inch6.58inch
Display typeIPS LCDIPS LCD
Screen resolution (width x height)720 x 16001080 x 2400
Pixel density269ppi399ppi
ChipsetMediaTek Helio G35MediaTek Dimensity 800U 5G
CPU specs2.3GHz+1.8GHz×8(8.0-cores)2.4GHz+2.0GHz×8(8.0-cores)
RAM size4.0GB8.0GB
Storage size64.0GB128.0GB
Rear-camera resolution13.0MP48.0MP
Front-camera resolution16.0MP20.0MP

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