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Which should you buy, the Galaxy S21 5G 256GB or Realme Q2 (2020) 128GB? We offer a thorough comparison of the differences in functions, specifications and performance between the two

Created date: 2021-01-13 21:28:25

Galaxy S21 5G 256GBRealme Q2 (2020) 128GB
Galaxy S21 5G 256GBRealme Q2 (2020) 128GB

How did the evaluations between the "Galaxy S21 5G 256GB" and "Realme Q2 (2020) 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!

Galaxy S21 5G 256GBRealme Q2 (2020) 128GB
Galaxy S21 5G 256GB

Realme Q2 (2020) 128GB

General rating:

76/100

(The 4353th of all smartphones)

78.7/100

(The 4170th of all smartphones)

Holding comfort
69/100
60/100
Weight
62/100
52/100
Screen size
90/100
90/100
Display quality
85/100
84/100
Battery life
- /100
- /100
Processing power
97/100
91/100
Memory capacity
93/100
90/100
Storage capacity
91/100
90/100
Rear camera performance
100/100
97/100
Front camera performance
64/100
75/100

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", performance comparison

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB" 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 "Galaxy S21 5G 256GB" has a width of 71.2mm, a length of 151.7mm, and a thickness of 7.9mm. Also, the "Realme Q2 (2020) 128GB" has a width of 75.1mm, a length of 162.2mm, and a thickness of 9.1mm.

Comparing the width and thickness of the body, the "Galaxy S21 5G 256GB" is smaller and more compact compared to the "Realme Q2 (2020) 128GB". For that reason, the "Galaxy S21 5G 256GB" is easier to grip firmly and carry one-handed than the "Realme Q2 (2020) 128GB". For that reason, we recommend the "Galaxy S21 5G 256GB".

Comparing the width and thickness of the body, there isn't a large difference in size between the "Galaxy S21 5G 256GB" and the "Realme Q2 (2020) 128GB". 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, the "Galaxy S21 5G 256GB" has a large size compared to the "Realme Q2 (2020) 128GB". For that reason the "Galaxy S21 5G 256GB" is a size that is easier to use in one hand and comfortably carry than the "Realme Q2 (2020) 128GB". That's why we recommend the "Galaxy S21 5G 256GB".

ScoreDimensions (width x height x thickness)
Galaxy S21 5G 256GB69/10071.2mm x 151.7mm x 7.9mm
Realme Q2 (2020) 128GB60/10075.1mm x 162.2mm x 9.1mm

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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 "Galaxy S21 5G 256GB" is about 169.0g, and the weight of the "Realme Q2 (2020) 128GB" is about 194.0g. Comparing the weight of the two devices, the "Galaxy S21 5G 256GB" is a lighter smart phone than the "Realme Q2 (2020) 128GB", with a difference of about 25g. For that reason the "Galaxy S21 5G 256GB" is a smart phone that is less likely than the "Realme Q2 (2020) 128GB"to put a burden on your fingers and wrist when used for an extended period. That's why we recommend the "Galaxy S21 5G 256GB" over the "Realme Q2 (2020) 128GB".

ScoreWeight
Galaxy S21 5G 256GB62/100169.0g
Realme Q2 (2020) 128GB52/100194.0g

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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 "Galaxy S21 5G 256GB" has a 6.2inch display. Also, the "Realme Q2 (2020) 128GB" has a 6.5inch display. Comparing the screen size, there is a negligible difference in screen size between the "Galaxy S21 5G 256GB" and the "Realme Q2 (2020) 128GB". 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
Galaxy S21 5G 256GB90/1006.2inch
Realme Q2 (2020) 128GB90/1006.5inch

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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 "Galaxy S21 5G 256GB" is 1080 x 2400, and pixel density is 424ppi. Also, the resolution on the "Realme Q2 (2020) 128GB" is 1080 x 2400, and pixel density is 404ppi. Comparing the pixel count, the difference in pixel density between the "Galaxy S21 5G 256GB" and the "Realme Q2 (2020) 128GB" 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
Galaxy S21 5G 256GB85/100424ppi
Realme Q2 (2020) 128GB84/100404ppi

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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
Galaxy S21 5G 256GB - /100
Realme Q2 (2020) 128GB - /100

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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 "Galaxy S21 5G 256GB"'s CPU is a Exynos 2100, with performance measured at 2.9GHz+2.8GHz+2.2GHz×8(8.0-cores). Also, the "Realme Q2 (2020) 128GB"'s CPU is a MediaTek Dimensity 800U 5G, with performance measured at 2.4GHz+2.0GHz×8(8.0-cores). Comparing CPU performance, the "Galaxy S21 5G 256GB" has higher specs compared to the "Realme Q2 (2020) 128GB". For that reason, the "Galaxy S21 5G 256GB" allows for more comfortable use of apps, and games that run more smoothly. That's why we recommend the "Galaxy S21 5G 256GB" over the "Realme Q2 (2020) 128GB".

ScoreCPU specs
Galaxy S21 5G 256GB97/1002.9GHz+2.8GHz+2.2GHz×8(8.0-cores)
Realme Q2 (2020) 128GB91/1002.4GHz+2.0GHz×8(8.0-cores)

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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 "Galaxy S21 5G 256GB" is 8.0GB and the weight of the "Realme Q2 (2020) 128GB" is 6.0GB. Comparing the devices in terms of RAM, there is almost no difference in the amount of RAM of the "Galaxy S21 5G 256GB" and the "Realme Q2 (2020) 128GB". For that reason they have about the same level of multitasking performance and 3D game and VR smoothness. That's why it is better to make a comparison in terms of other aspects of performance and functionality.

ScoreRAM size
Galaxy S21 5G 256GB93/1008.0GB
Realme Q2 (2020) 128GB90/1006.0GB

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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 "Galaxy S21 5G 256GB" is 256.0GB. Also the "Realme Q2 (2020) 128GB" is 128.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB". 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
Galaxy S21 5G 256GB91/100256.0GB
Realme Q2 (2020) 128GB90/100128.0GB

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB" 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.

"Galaxy S21 5G 256GB" has a 64.0MP main camera. Also, "Realme Q2 (2020) 128GB" has a 48.0MP main camera. Comparing rear camera performance, the "Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB" 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
Galaxy S21 5G 256GB100/10064.0MP
Realme Q2 (2020) 128GB97/10048.0MP

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", 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.

"Galaxy S21 5G 256GB" has an 10.0MP front camera and "Realme Q2 (2020) 128GB" has an 16.0MP front camera. Comparing rear camera performance, the front camera of the "Realme Q2 (2020) 128GB" has a much higher pixel count compared to the "Galaxy S21 5G 256GB", with a roughly 6MP difference. As a result, the "Realme Q2 (2020) 128GB" is more suited than the "Galaxy S21 5G 256GB" 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 "Realme Q2 (2020) 128GB" over the "Galaxy S21 5G 256GB".

ScoreFront-camera resolution
Galaxy S21 5G 256GB64/10010.0MP
Realme Q2 (2020) 128GB75/10016.0MP

"Galaxy S21 5G 256GB" and "Realme Q2 (2020) 128GB", performance comparison by specification sheet

Galaxy S21 5G 256GBRealme Q2 (2020) 128GB
ImageGalaxy S21 5G 256GBRealme Q2 (2020) 128GB
MakerSamsungRealme
Release date2021-01-292020-10-19
ColorPhantom Gray/Phantom White/Phantom Violet/Phantom PinkBlue/Violet
OSAndroidAndroid
Dimensions (width x height x thickness)71.2mm x 151.7mm x 7.9mm75.1mm x 162.2mm x 9.1mm
Weight169.0g194.0g
Display size6.2inch6.5inch
Display typeDynamic AMOLED 2XIPS LCD
Screen resolution (width x height)1080 x 24001080 x 2400
Pixel density424ppi404ppi
ChipsetExynos 2100MediaTek Dimensity 800U 5G
CPU specs2.9GHz+2.8GHz+2.2GHz×8(8.0-cores)2.4GHz+2.0GHz×8(8.0-cores)
RAM size8.0GB6.0GB
Storage size256.0GB128.0GB
Rear-camera resolution64.0MP48.0MP
Front-camera resolution10.0MP16.0MP

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