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Which is better, vivo Y21 (2021) 128GB or vivo iQOO Z3 256GB? We compared their features and specs in detail

Created date: 2021-08-20 15:16:10

vivo Y21 (2021) 128GBvivo iQOO Z3 256GB
vivo Y21 (2021) 128GBvivo iQOO Z3 256GB

Here's our thorough comparison of the difference in performance and function between the "vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB". Which one should you buy? We'll compare and explain what differs between the "vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB" in a way that even people who aren't used to choosing between two similar products can understand.

vivo Y21 (2021) 128GBvivo iQOO Z3 256GB
vivo Y21 (2021) 128GB

vivo iQOO Z3 256GB

General rating:

61.8/100

(The 4811th of all smartphones)

78.6/100

(The 4178th of all smartphones)

Holding comfort
60/100
61/100
Weight
57/100
56/100
Screen size
90/100
90/100
Display quality
54/100
84/100
Battery life
- /100
- /100
Processing power
88/100
96/100
Memory capacity
70/100
93/100
Storage capacity
90/100
91/100
Rear camera performance
61/100
100/100
Front camera performance
58/100
75/100

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", performance comparison

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB" 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 Y21 (2021) 128GB" has a width of 76.1mm, a length of 164.3mm, and a thickness of 8.0mm. Also, the "vivo iQOO Z3 256GB" has a width of 75.3mm, a length of 164.0mm, and a thickness of 8.5mm.

Comparing the width and thickness of the body, there isn't much difference between the "vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB" 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 Y21 (2021) 128GB" and the "vivo iQOO Z3 256GB". 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 Y21 (2021) 128GB" and the "vivo iQOO Z3 256GB". 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 Y21 (2021) 128GB60/10076.1mm x 164.3mm x 8.0mm
vivo iQOO Z3 256GB61/10075.3mm x 164.0mm x 8.5mm

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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 Y21 (2021) 128GB" is about 182.0g, and the weight of the "vivo iQOO Z3 256GB" is about 185.5g. Comparing the weight of the two devices, there isn't much difference in weight between the "vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB". 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
vivo Y21 (2021) 128GB57/100182.0g
vivo iQOO Z3 256GB56/100185.5g

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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 Y21 (2021) 128GB" has a 6.51inch display. Also, the "vivo iQOO Z3 256GB" has a 6.58inch display. Comparing the screen size, there is a negligible difference in screen size between the "vivo Y21 (2021) 128GB" and the "vivo iQOO Z3 256GB". 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
vivo Y21 (2021) 128GB90/1006.51inch
vivo iQOO Z3 256GB90/1006.58inch

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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 Y21 (2021) 128GB" is 720 x 1600, and pixel density is 269ppi. Also, the resolution on the "vivo iQOO Z3 256GB" is 1080 x 2408, and pixel density is 401ppi. Comparing the pixel count, the "vivo iQOO Z3 256GB" has much higher pixel density than the "vivo Y21 (2021) 128GB", with a difference of roughly 132ppi. In terms of having better picture quality and exerting less strain on the eyes, the "vivo iQOO Z3 256GB" is superior to the "vivo Y21 (2021) 128GB". 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 iQOO Z3 256GB" over the "vivo Y21 (2021) 128GB".

ScorePixel density
vivo Y21 (2021) 128GB54/100269ppi
vivo iQOO Z3 256GB84/100401ppi

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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
vivo Y21 (2021) 128GB - /100
vivo iQOO Z3 256GB - /100

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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 Y21 (2021) 128GB"'s CPU is a Mediatek MT6765 Helio P35, with performance measured at 2.35GHz+1.8GHz×8(8.0-cores). Also, the "vivo iQOO Z3 256GB"'s CPU is a Qualcomm SDM768 Snapdragon 768G 5G, with performance measured at 2.8GHz+2.4GHz+1.8GHz×8(8.0-cores). Comparing CPU performance, the "vivo iQOO Z3 256GB" has higher specs compared to the "vivo Y21 (2021) 128GB". For that reason, the "vivo iQOO Z3 256GB" allows for more comfortable use of apps, and games that run more smoothly. That's why we recommend the "vivo iQOO Z3 256GB" over the "vivo Y21 (2021) 128GB".

ScoreCPU specs
vivo Y21 (2021) 128GB88/1002.35GHz+1.8GHz×8(8.0-cores)
vivo iQOO Z3 256GB96/1002.8GHz+2.4GHz+1.8GHz×8(8.0-cores)

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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 Y21 (2021) 128GB" is 4.0GB and the weight of the "vivo iQOO Z3 256GB" is 8.0GB. Comparing the devices in terms of RAM, the "vivo iQOO Z3 256GB" has a significantly larger amount of RAM than the "vivo Y21 (2021) 128GB", with a difference of about 4GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "vivo iQOO Z3 256GB" is superior to the "vivo Y21 (2021) 128GB". 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 iQOO Z3 256GB" over the "vivo Y21 (2021) 128GB".

ScoreRAM size
vivo Y21 (2021) 128GB70/1004.0GB
vivo iQOO Z3 256GB93/1008.0GB

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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 Y21 (2021) 128GB" is 128.0GB. Also the "vivo iQOO Z3 256GB" is 256.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB". 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
vivo Y21 (2021) 128GB90/100128.0GB
vivo iQOO Z3 256GB91/100256.0GB

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB" 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 Y21 (2021) 128GB" has a 13.0MP main camera. Also, "vivo iQOO Z3 256GB" has a 64.0MP main camera. Comparing rear camera performance, the "vivo iQOO Z3 256GB" has a much higher pixel count compared to the "vivo Y21 (2021) 128GB", with a roughly 51MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "vivo iQOO Z3 256GB" is superior to the "vivo Y21 (2021) 128GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "vivo iQOO Z3 256GB" over the "vivo Y21 (2021) 128GB".

ScoreRear-camera resolution
vivo Y21 (2021) 128GB61/10013.0MP
vivo iQOO Z3 256GB100/10064.0MP

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", 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 Y21 (2021) 128GB" has an 8.0MP front camera and "vivo iQOO Z3 256GB" has an 16.0MP front camera. Comparing rear camera performance, the front camera of the "vivo iQOO Z3 256GB" has a much higher pixel count compared to the "vivo Y21 (2021) 128GB", with a roughly 8MP difference. As a result, the "vivo iQOO Z3 256GB" is more suited than the "vivo Y21 (2021) 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 "vivo iQOO Z3 256GB" over the "vivo Y21 (2021) 128GB".

ScoreFront-camera resolution
vivo Y21 (2021) 128GB58/1008.0MP
vivo iQOO Z3 256GB75/10016.0MP

"vivo Y21 (2021) 128GB" and "vivo iQOO Z3 256GB", performance comparison by specification sheet

vivo Y21 (2021) 128GBvivo iQOO Z3 256GB
Imagevivo Y21 (2021) 128GBvivo iQOO Z3 256GB
Makervivovivo
Release date2021-08-202021-04-01
ColorDiamond Glow/Midnight BlueBlack/Blue/Silver
OSAndroidAndroid
Dimensions (width x height x thickness)76.1mm x 164.3mm x 8.0mm75.3mm x 164.0mm x 8.5mm
Weight182.0g185.5g
Display size6.51inch6.58inch
Display typeLCDIPS LCD
Screen resolution (width x height)720 x 16001080 x 2408
Pixel density269ppi401ppi
ChipsetMediatek MT6765 Helio P35Qualcomm SDM768 Snapdragon 768G 5G
CPU specs2.35GHz+1.8GHz×8(8.0-cores)2.8GHz+2.4GHz+1.8GHz×8(8.0-cores)
RAM size4.0GB8.0GB
Storage size128.0GB256.0GB
Rear-camera resolution13.0MP64.0MP
Front-camera resolution8.0MP16.0MP

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