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Galaxy S21 Ultra 5G 512GB vs Samsung Galaxy S20 128GB: Which is the best?

Created date: 2021-01-13 14:37:26

Galaxy S21 Ultra 5G 512GBSamsung Galaxy S20 128GB
Galaxy S21 Ultra 5G 512GBSamsung Galaxy S20 128GB

Here's our thorough comparison of the difference in performance and function between the "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 128GB". Which one should you buy? We'll compare and explain what differs between the "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 128GB" in a way that even people who aren't used to choosing between two similar products can understand.

Galaxy S21 Ultra 5G 512GBSamsung Galaxy S20 128GB
Galaxy S21 Ultra 5G 512GB

Samsung Galaxy S20 128GB

General rating:
Portabilityrating-image3.0
75.6mm x 165.1mm x 8.9mm
rating-image3.7
69.1mm x 151.7mm x 7.9mm
Weightrating-image2.3
227.0g
rating-image3.3
163.0g
Size of screenrating-image4.6
6.8inch
rating-image4.5
6.2inch
Screen clarityrating-image4.4
516ppi
rating-image4.5
565ppi
Battery durationrating-image
rating-image4.0
4000.0mAh
Processing capabilityrating-image5.0
2.9GHz+2.8GHz+2.2GHz×8(8.0-cores)
rating-image4.8
2.73GHz+2.6GHz+2.0GHz×8(8.0-cores)
Memory capacityrating-image5.0
16.0GB
rating-image4.7
8.0GB
Storage capacityrating-image4.8
512.0GB
rating-image4.5
128.0GB
Rear camera functionrating-image5.0
108.0MP
rating-image5.0
64.0MP
Front camera functionrating-image5.0
40.0MP
rating-image3.2
10.0MP

Compare Performance and Usability

Size comparison of "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" is 75.6mm wide, 165.1mm tall, and 8.9mm thick. The "Samsung Galaxy S20 128GB" is 69.1mm tall, 151.7mm wide, and 7.9mm thick.

The "Samsung Galaxy S20 128GB" is also more compact than the "Galaxy S21 Ultra 5G 512GB" in terms of the thickness of the devices. The "Samsung Galaxy S20 128GB" is easier than the "Galaxy S21 Ultra 5G 512GB" to hold with one hand, and you are less likely to accidentally drop it. If you're looking for a smartphone that fits nicely in your hand and can be gripped firmly, we recommend buying the "Samsung Galaxy S20 128GB" rather than the "Galaxy S21 Ultra 5G 512GB".

Comparing the width and height of the main unit, the "Samsung Galaxy S20 128GB" is smaller and more compact than the "Galaxy S21 Ultra 5G 512GB". As a result, the "Samsung Galaxy S20 128GB" is easier to operate with one hand and it is more portable without getting in your way than the "Galaxy S21 Ultra 5G 512GB". Therefore, the "Samsung Galaxy S20 128GB" is recommended.

Comparing the overall size of the main unit, the "Samsung Galaxy S20 128GB" is smaller than the "Galaxy S21 Ultra 5G 512GB". As a result, it is easier to use the "Samsung Galaxy S20 128GB" with one hand compared to the "Galaxy S21 Ultra 5G 512GB", and its size makes it more comfortable to carry around. For this reason, the "Samsung Galaxy S20 128GB" is recommended.

ScoreDimensions (width x height x thickness)
Galaxy S21 Ultra 5G 512GB59/10075.6mm x 165.1mm x 8.9mm
Samsung Galaxy S20 128GB73/10069.1mm x 151.7mm x 7.9mm

Which one is easier to hold, "Galaxy S21 Ultra 5G 512GB" or "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" weighs 227.0g. The "Samsung Galaxy S20 128GB" clocks in at 163.0g. If you compare the weight of the two, the "Samsung Galaxy S20 128GB" is a considerably lighter smartphone than the "Galaxy S21 Ultra 5G 512GB", with a difference of about 64g. Because of this, the "Samsung Galaxy S20 128GB" puts less of a burden on the fingers and wrists than the "Galaxy S21 Ultra 5G 512GB". If you want a smartphone that won't tire your hands out even when using it for a long time, we recommend that you buy the "Samsung Galaxy S20 128GB" rather than the "Galaxy S21 Ultra 5G 512GB".

ScoreWeight
Galaxy S21 Ultra 5G 512GB46/100227.0g
Samsung Galaxy S20 128GB65/100163.0g

Which is better in terms of display, "Galaxy S21 Ultra 5G 512GB" or "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" is 6.8inch, and 6.2inch on the "Samsung Galaxy S20 128GB". The screens of the "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 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
Galaxy S21 Ultra 5G 512GB91/1006.8inch
Samsung Galaxy S20 128GB90/1006.2inch

Which one has a better display, "Galaxy S21 Ultra 5G 512GB" or "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" has a 1440 x 3200 resolution and a pixel density of 516ppi. The "Samsung Galaxy S20 128GB", on the other hand, has a screen resolution of 1440 x 3200 and a pixel density of 565ppi. There is not much of a difference in the pixel resolutions of the "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 128GB", so they are about the same in terms of clarity of image and gentleness on the eyes. For this reason it is better to compare them based on other aspects of performance and function.

ScorePixel density
Galaxy S21 Ultra 5G 512GB88/100516ppi
Samsung Galaxy S20 128GB89/100565ppi

How is the battery duration of "Galaxy S21 Ultra 5G 512GB" different from that of "Samsung Galaxy S20 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
Galaxy S21 Ultra 5G 512GB - /100
Samsung Galaxy S20 128GB80/1004000.0mAh

Which is better in terms of CPU function, "Galaxy S21 Ultra 5G 512GB" or "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" is equipped with a Exynos 2100 processor, and its performance speed is 2.9GHz+2.8GHz+2.2GHz×8(8.0-cores). The "Samsung Galaxy S20 128GB" uses an Exynos 990 CPU that performs at a speed of 2.73GHz+2.6GHz+2.0GHz×8(8.0-cores). There is also no real discrepancy between the CPU performances of the "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 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
Galaxy S21 Ultra 5G 512GB99/1002.9GHz+2.8GHz+2.2GHz×8(8.0-cores)
Samsung Galaxy S20 128GB96/1002.73GHz+2.6GHz+2.0GHz×8(8.0-cores)

How is "Galaxy S21 Ultra 5G 512GB" different from "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" has 16.0GB of memory. The "Samsung Galaxy S20 128GB", on the other hand, has 8.0GB. Comparing the memory performance, the "Galaxy S21 Ultra 5G 512GB" has a larger memory capacity than the "Samsung Galaxy S20 128GB", with a difference of approximately 8GB. For this reason, multitasking is smoother on the "Galaxy S21 Ultra 5G 512GB" than the "Samsung Galaxy S20 128GB", and applications are less likely to crash. Also, it is more enjoyable to play 3D games and VR on the "Galaxy S21 Ultra 5G 512GB". For this reason, the "Galaxy S21 Ultra 5G 512GB" is recommended.

ScoreRAM size
Galaxy S21 Ultra 5G 512GB100/10016.0GB
Samsung Galaxy S20 128GB93/1008.0GB

Which has a better storage capacity, "Galaxy S21 Ultra 5G 512GB" or "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" has 512.0GB of storage, while the "Samsung Galaxy S20 128GB" has 128.0GB. There is no real difference between the "Galaxy S21 Ultra 5G 512GB"and "Samsung Galaxy S20 128GB" 's ROMs and storage capacities, so both can store roughly the same amount of photographs and apps. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreStorage size
Galaxy S21 Ultra 5G 512GB95/100512.0GB
Samsung Galaxy S20 128GB90/100128.0GB

Compare the rear cameras of "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" has 108.0MP. The "Samsung Galaxy S20 128GB" has 64.0MP. The rear facing cameras of the "Galaxy S21 Ultra 5G 512GB" and "Samsung Galaxy S20 128GB" have roughly the same performance, so the quality of the photograph and video footage they can capture is around the same. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreRear-camera resolution
Galaxy S21 Ultra 5G 512GB100/100108.0MP
Samsung Galaxy S20 128GB100/10064.0MP

Which has a front camera with better picture quality, "Galaxy S21 Ultra 5G 512GB" or "Samsung Galaxy S20 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 "Galaxy S21 Ultra 5G 512GB" has a resolution of 40.0MP. The "Samsung Galaxy S20 128GB"'s has 10.0MP. The front-facing camera of the "Galaxy S21 Ultra 5G 512GB" has a significantly higher number of pixels than the "Samsung Galaxy S20 128GB", with a difference of about 30MP. Therefore, the "Galaxy S21 Ultra 5G 512GB" is more suitable for taking photos and videos than the "Samsung Galaxy S20 128GB". If you want to take and print high-quality selfies, we recommend buying the "Galaxy S21 Ultra 5G 512GB" rather than the "Samsung Galaxy S20 128GB".

ScoreFront-camera resolution
Galaxy S21 Ultra 5G 512GB100/10040.0MP
Samsung Galaxy S20 128GB64/10010.0MP

Compare Performance Specs

Galaxy S21 Ultra 5G 512GBSamsung Galaxy S20 128GB
ImageGalaxy S21 Ultra 5G 512GBSamsung Galaxy S20 128GB
MakerSamsungSamsung
Release date2021-01-292020-03-06
ColorPhantom Black/Phantom Silver/Phantom Titanium/Phantom Navy/Phantom BrownCosmic Grey/Cloud Blue/Cloud Pink
OSAndroidAndroid
Dimensions (width x height x thickness)75.6mm x 165.1mm x 8.9mm69.1mm x 151.7mm x 7.9mm
Weight227.0g163.0g
Display size6.8inch6.2inch
Display typeDynamic AMOLED 2XDynamic AMOLED 2X
Screen resolution (width x height)1440 x 32001440 x 3200
Pixel density516ppi565ppi
ChipsetExynos 2100Exynos 990
CPU specs2.9GHz+2.8GHz+2.2GHz×8(8.0-cores)2.73GHz+2.6GHz+2.0GHz×8(8.0-cores)
RAM size16.0GB8.0GB
Storage size512.0GB128.0GB
Rear-camera resolution108.0MP64.0MP
Front-camera resolution40.0MP10.0MP

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