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Vivo Y51a (2021) 128GB vs Galaxy S21 Ultra 5G 512GB

Created date: 2021-01-17 21:26:52

vivo Y51a (2021) 128GBGalaxy S21 Ultra 5G 512GB
vivo Y51a (2021) 128GBGalaxy S21 Ultra 5G 512GB

How did the evaluations between the "vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB" 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!

vivo Y51a (2021) 128GBGalaxy S21 Ultra 5G 512GB
vivo Y51a (2021) 128GB

Galaxy S21 Ultra 5G 512GB

General rating:
Holding comfortrating-image3.1
75.3mm x 163.9mm x 8.4mm
rating-image3.0
75.6mm x 165.1mm x 8.9mm
Weightrating-image2.8
188.0g
rating-image2.3
227.0g
Screen sizerating-image4.5
6.58inch
rating-image4.6
6.8inch
Display qualityrating-image4.2
401ppi
rating-image4.4
516ppi
Battery liferating-image
rating-image
Processing powerrating-image4.6
2.0GHz+1.8GHz×8(8.0-cores)
rating-image5.0
2.9GHz+2.8GHz+2.2GHz×8(8.0-cores)
Memory capacityrating-image4.7
8.0GB
rating-image5.0
16.0GB
Storage capacityrating-image4.5
128.0GB
rating-image4.8
512.0GB
Rear camera performancerating-image4.9
48.0MP
rating-image5.0
108.0MP
Front camera performancerating-image3.8
16.0MP
rating-image5.0
40.0MP

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", performance comparison

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB" 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 Y51a (2021) 128GB" has a width of 75.3mm, a length of 163.9mm, and a thickness of 8.4mm. Also, the "Galaxy S21 Ultra 5G 512GB" has a width of 75.6mm, a length of 165.1mm, and a thickness of 8.9mm.

Comparing the width and thickness of the body, there isn't much difference between the "vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB" 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 Y51a (2021) 128GB" and the "Galaxy S21 Ultra 5G 512GB". 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 Y51a (2021) 128GB" and the "Galaxy S21 Ultra 5G 512GB". 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 Y51a (2021) 128GB61/10075.3mm x 163.9mm x 8.4mm
Galaxy S21 Ultra 5G 512GB59/10075.6mm x 165.1mm x 8.9mm

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB" is about 188.0g, and the weight of the "Galaxy S21 Ultra 5G 512GB" is about 227.0g. Comparing the weight of the two devices, the "vivo Y51a (2021) 128GB" is a lighter smart phone than the "Galaxy S21 Ultra 5G 512GB", with a difference of about 39g. For that reason the "vivo Y51a (2021) 128GB" is a smart phone that is less likely than the "Galaxy S21 Ultra 5G 512GB"to put a burden on your fingers and wrist when used for an extended period. That's why we recommend the "vivo Y51a (2021) 128GB" over the "Galaxy S21 Ultra 5G 512GB".

ScoreWeight
vivo Y51a (2021) 128GB55/100188.0g
Galaxy S21 Ultra 5G 512GB46/100227.0g

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB" has a 6.58inch display. Also, the "Galaxy S21 Ultra 5G 512GB" has a 6.8inch display. Comparing the screen size, there is a negligible difference in screen size between the "vivo Y51a (2021) 128GB" and the "Galaxy S21 Ultra 5G 512GB". 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 Y51a (2021) 128GB90/1006.58inch
Galaxy S21 Ultra 5G 512GB91/1006.8inch

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB" is 1080 x 2408, and pixel density is 401ppi. Also, the resolution on the "Galaxy S21 Ultra 5G 512GB" is 1440 x 3200, and pixel density is 516ppi. Comparing the pixel count, the difference in pixel density between the "vivo Y51a (2021) 128GB" and the "Galaxy S21 Ultra 5G 512GB" is negligible. As a result, they are both evenly matched in terms of picture quality and easiness on the eyes. Therefore, we recommend comparing them based on other aspects of performance and functionality.

ScorePixel density
vivo Y51a (2021) 128GB84/100401ppi
Galaxy S21 Ultra 5G 512GB88/100516ppi

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB - /100
Galaxy S21 Ultra 5G 512GB - /100

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB"'s CPU is a Qualcomm SM6115 Snapdragon 662, with performance measured at 2.0GHz+1.8GHz×8(8.0-cores). Also, the "Galaxy S21 Ultra 5G 512GB"'s CPU is a Exynos 2100, with performance measured at 2.9GHz+2.8GHz+2.2GHz×8(8.0-cores). Comparing CPU performance, the "Galaxy S21 Ultra 5G 512GB" has higher specs compared to the "vivo Y51a (2021) 128GB". For that reason, the "Galaxy S21 Ultra 5G 512GB" allows for more comfortable use of apps, and games that run more smoothly. That's why we recommend the "Galaxy S21 Ultra 5G 512GB" over the "vivo Y51a (2021) 128GB".

ScoreCPU specs
vivo Y51a (2021) 128GB91/1002.0GHz+1.8GHz×8(8.0-cores)
Galaxy S21 Ultra 5G 512GB99/1002.9GHz+2.8GHz+2.2GHz×8(8.0-cores)

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB" is 8.0GB and the weight of the "Galaxy S21 Ultra 5G 512GB" is 16.0GB. Comparing the devices in terms of RAM, the "Galaxy S21 Ultra 5G 512GB" has more RAM than the "vivo Y51a (2021) 128GB", with a difference of about 8GB. For that reason the "Galaxy S21 Ultra 5G 512GB" allows for smoother multitasking than the "vivo Y51a (2021) 128GB", and apps are less likely to crash. In addition the "Galaxy S21 Ultra 5G 512GB" allows for smoother enjoyment of 3D games and VR. For this reason, we recommend the "Galaxy S21 Ultra 5G 512GB".

ScoreRAM size
vivo Y51a (2021) 128GB93/1008.0GB
Galaxy S21 Ultra 5G 512GB100/10016.0GB

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB" is 128.0GB. Also the "Galaxy S21 Ultra 5G 512GB" is 512.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB". 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 Y51a (2021) 128GB90/100128.0GB
Galaxy S21 Ultra 5G 512GB95/100512.0GB

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB" 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 Y51a (2021) 128GB" has a 48.0MP main camera. Also, "Galaxy S21 Ultra 5G 512GB" has a 108.0MP main camera. Comparing rear camera performance, the "vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB" have approximately the same pixel count. As a result, they can both take pictures and shoot videos of roughly the same quality. Therefore, we recommend comparing the two based on other aspects of performance and functionality.

ScoreRear-camera resolution
vivo Y51a (2021) 128GB97/10048.0MP
Galaxy S21 Ultra 5G 512GB100/100108.0MP

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", 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 Y51a (2021) 128GB" has an 16.0MP front camera and "Galaxy S21 Ultra 5G 512GB" has an 40.0MP front camera. Comparing rear camera performance, the front camera of the "Galaxy S21 Ultra 5G 512GB" has a much higher pixel count compared to the "vivo Y51a (2021) 128GB", with a roughly 24MP difference. As a result, the "Galaxy S21 Ultra 5G 512GB" is more suited than the "vivo Y51a (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 "Galaxy S21 Ultra 5G 512GB" over the "vivo Y51a (2021) 128GB".

ScoreFront-camera resolution
vivo Y51a (2021) 128GB75/10016.0MP
Galaxy S21 Ultra 5G 512GB100/10040.0MP

"vivo Y51a (2021) 128GB" and "Galaxy S21 Ultra 5G 512GB", performance comparison by specification sheet

vivo Y51a (2021) 128GBGalaxy S21 Ultra 5G 512GB
Imagevivo Y51a (2021) 128GBGalaxy S21 Ultra 5G 512GB
MakervivoSamsung
Release date2021-01-082021-01-29
ColorTitanium Sapphire/Crystal SymphonyPhantom Black/Phantom Silver/Phantom Titanium/Phantom Navy/Phantom Brown
OSAndroidAndroid
Dimensions (width x height x thickness)75.3mm x 163.9mm x 8.4mm75.6mm x 165.1mm x 8.9mm
Weight188.0g227.0g
Display size6.58inch6.8inch
Display typeIPS LCDDynamic AMOLED 2X
Screen resolution (width x height)1080 x 24081440 x 3200
Pixel density401ppi516ppi
ChipsetQualcomm SM6115 Snapdragon 662Exynos 2100
CPU specs2.0GHz+1.8GHz×8(8.0-cores)2.9GHz+2.8GHz+2.2GHz×8(8.0-cores)
RAM size8.0GB16.0GB
Storage size128.0GB512.0GB
Rear-camera resolution48.0MP108.0MP
Front-camera resolution16.0MP40.0MP

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