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Which one is better, the Galaxy S8+ SC-03J docomo 64GB or vivo X21 UD (2018) 128GB? We did a deep-dive comparison categorised by purpose of use!

Created date: 2018-09-30 22:17:32, Updated date: 2021-10-20 18:08:49

vivo X21 UD (2018) 128GBGalaxy S8+ SC-03J docomo 64GB
vivo X21 UD (2018) 128GBGalaxy S8+ SC-03J docomo 64GB

Which do we recommend after comparing the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB"? We evaluated the differences between the two models. This article is recommended for those who are trying to choose between the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB".

vivo X21 UD (2018) 128GBGalaxy S8+ SC-03J docomo 64GB
vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

General rating:
Griprating-image3.0
59/100
rating-image2.9
57/100
Screen qualityrating-image4.0
79/100
rating-image4.5
89/100
Performancerating-image4.8
96/100
rating-image4.6
91/100
Storage sizerating-image4.5
90/100
rating-image4.2
84/100
Batteryrating-image4.5
90/100
rating-image4.6
92/100
Rear-camera resolutionrating-image3.5
70/100
rating-image3.5
70/100
Front-camera resolutionrating-image5.0
100/100
rating-image4.0
80/100

What is the difference between the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB"? See a detailed comparison of ease of use and performance

Comparison of weight and size of the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB"

The design of vivo X21 UD (2018) 128GB

The "vivo X21 UD (2018) 128GB" is 154.5mm long, 74.8mm wide, and 7.4mm thick. It weighs 156.2g.

The design of Galaxy S8+ SC-03J docomo 64GB

The "Galaxy S8+ SC-03J docomo 64GB" is 160.0mm long, 73.0mm wide, and 8.3mm thick. It weighs 173.0g.

Which is the better design to use?

In comparison, the size difference is 5.5mm in length, 1.7mm in width, and 0.9mm in thickness. Both the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB" are equally easy to use with one hand. Hiragana flick input is basically just as easy to use with "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB". Both the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB" are basically equally portable and easy to handle.

The difference in weight is 16.8g. The "vivo X21 UD (2018) 128GB" is much lighter, putting less burden on the hand.

vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

Ease of holding it in one hand66/10068/100
How much it does not feel heavy to hold in one hand48/10037/100
Ease of carrying around61/10062/100

Compare the display of the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB"

Display of the vivo X21 UD (2018) 128GB

The "vivo X21 UD (2018) 128GB" uses a Super AMOLED liquid crystal. The resolution is 1080 x 2280, and the pixel density is 401ppi. The "vivo X21 UD (2018) 128GB" has a 6.28inch screen size.

Display of the Galaxy S8+ SC-03J docomo 64GB

The "Galaxy S8+ SC-03J docomo 64GB" uses a Super AMOLED liquid crystal. The resolution is 1440 x 2960, and the pixel density is 530ppi. The "Galaxy S8+ SC-03J docomo 64GB" has a 6.2inch screen size.

Which has a better screen?

This makes a 0.08inch difference in the display sizes. When actually viewing the two phones' onscreen displays, it is obvious that they are roughly the same size. For doing internet research using systems such as SNS, there is not much difference between the two phones. Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose. The gaming screens of these two phones are roughly the same size. Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

In terms of display, the "Galaxy S8+ SC-03J docomo 64GB" is a better choice for those looking to use their phone for browsing the web or for gaming. When using the smartphone as a VR, the screen is generally held much closer to the face than when using the smartphone for other purposes, and so the clarity of the screen becomes a rather important factor. The "Galaxy S8+ SC-03J docomo 64GB" also offers a crisp, cleaner display when using a VR headset than the "vivo X21 UD (2018) 128GB". The "Galaxy S8+ SC-03J docomo 64GB" has the necessary specs for this kind of purpose.

vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

How suited is the screen for usual usage?78/10077/100
How suited is the screen to play games on?82/10081/100

Compare the camera performances of the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB"

Camera performance of vivo X21 UD (2018) 128GB

The main camera of the "vivo X21 UD (2018) 128GB" has 12.0MP. The front camera has 12.0MP.

Camera performance of Galaxy S8+ SC-03J docomo 64GB

The main camera of the "Galaxy S8+ SC-03J docomo 64GB" has 12.2MP. The front camera has 8.0MP.

Which camera performance is better?

The back cameras thus have a 0.1MP difference in comparison. There is very little difference in the performance (or pixel count) of "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB" when shooting distant objects or Instagrammable landscapes. Also, when using the rear camera to snap close shots of photogenic sweets or meals, there is very little difference between the pixel counts of the two phones. Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

There is a 4MP difference in front camera pixel number. The "vivo X21 UD (2018) 128GB"'s front camera also works terrifically well with selfie sticks and for capturing distant objects like the background scenery in your selfies. The "vivo X21 UD (2018) 128GB" has the necessary specs for this kind of purpose. The "vivo X21 UD (2018) 128GB"'s front camera has a more suitable megapixel count for shooting objects up close for selfies and such.

vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

Is is suited to taking far away objects with the rear camera?70/10070/100
Is it suited for taking close objects with the built-in camera?100/10080/100

Comparison of the processing capabilities of the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB"

The processing capability of the vivo X21 UD (2018) 128GB

Performance is defined by the chipset, and the "vivo X21 UD (2018) 128GB" uses the Qualcomm SDM660 Snapdragon 660 SoC. The CPU performance is 2.2GHz+1.8GHz×8(8.0-cores). The memory capacity is 6.0GB.

The processing capability of the Galaxy S8+ SC-03J docomo 64GB

Performance is defined by the chipset, and the "Galaxy S8+ SC-03J docomo 64GB" uses the Snapdragon 835 MSM8998 SoC. The CPU performance is 2.6GHz×8(8.0-cores). The memory capacity is 4.0GB.

Which has the better processing capability?

"vivo X21 UD (2018) 128GB" has a slightly better CPU performance and better specs overall. This is a 2GB difference in memory capacity. The memory of "vivo X21 UD (2018) 128GB" is slightly larger, so "vivo X21 UD (2018) 128GB" is recommended over "Galaxy S8+ SC-03J docomo 64GB" for multitasking.

For phone calls, emails, messaging, using SNS or most fundamental features, the differences between the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" are not large at all. For people who mainly use their phones to look things up online, watch videos and play games occasionally I can recommend the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" equally. Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

There is basically no difference between "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB" when playing 2D games or basic 3D games. For playing more memory-intensive 3D games, it is better to go with "vivo X21 UD (2018) 128GB" as it has better performance. Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

Review on the CPU capbility and memory capacity when using Social Networks or the Internet98/10094/100
Review on the CPU speed and the memory capacity while playing 3D games94/10088/100

Comparison of the battery life of the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB"

Battery performance of vivo X21 UD (2018) 128GB

The "vivo X21 UD (2018) 128GB" has a battery capacity of 3200.0mAh.

Battery performance of Galaxy S8+ SC-03J docomo 64GB

The "Galaxy S8+ SC-03J docomo 64GB" has a battery capacity of 3500.0mAh.

Which battery perfomances is better?

This makes a difference in battery capacity of 300mAh, but it is not enough to only compare the capacity. With a high-performance CPU, the battery drains faster, and a larger screen also uses more battery.

If you only use it to make phone calls or checking the time there is no large difference between them. For looking things up online, checking SNS, playing games occasionally or for most frequent use, it doesn't feel like there is much difference between the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB". Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

If you're using it frequently, for example playing games for a long time or using it to watch movies, you may feel no difference between the two devices. Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

Review on the battery life of a phone mainly using Social Networks and the Internet90/10092/100
Review on the battery life of a phone mainly using mainly games and videos78/10083/100

Compare the storage capacity of the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB"

The storage capacity of the vivo X21 UD (2018) 128GB

The "vivo X21 UD (2018) 128GB" has 128.0GB of internal memory. It is also compatible with SD cards, so when there is insufficient storage space, then a SD card can be used to add more storage. A SD with a maximum of 256.0GB can be used.

The storage capacity of the Galaxy S8+ SC-03J docomo 64GB

The "Galaxy S8+ SC-03J docomo 64GB" has 64.0GB of internal memory. It is also compatible with SD cards, so when there is insufficient storage space, then a SD card can be used to add more storage. A SD with a maximum of 256.0GB can be used.

Which has the easier storage to use?

The difference in internal memory is about 64GB. "vivo X21 UD (2018) 128GB" is recommended if you are using your phone mainly for downloading games and using apps such as social media. Avid gamers should look to the "vivo X21 UD (2018) 128GB" for fulfilling their storage needs, as the "Galaxy S8+ SC-03J docomo 64GB" unfortunately falls behind here. Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

When the storage added with a SD card is included, then the difference is about 64GB. Because the speed of loading from or saving to the SD card is slow, it is suited for saving pictures or videos. If you want to save long videos or save lots of photos, it does not make much difference whether you choose "vivo X21 UD (2018) 128GB" or "Galaxy S8+ SC-03J docomo 64GB". Both the "vivo X21 UD (2018) 128GB" and the "Galaxy S8+ SC-03J docomo 64GB" can be easily used for this kind of purpose.

vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

Review on the storage capacity when playing many games90/10084/100
Review on when you store many pictures and videos92/10091/100

Which to buy, the "vivo X21 UD (2018) 128GB" or "Galaxy S8+ SC-03J docomo 64GB"

At the end of the day which is better, the "vivo X21 UD (2018) 128GB" or "Galaxy S8+ SC-03J docomo 64GB"?

When it comes to being easy to handle and carry around, there is hardly any difference between "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB". If you want a larger screen, "Galaxy S8+ SC-03J docomo 64GB" is recommended as it has a 6.2inch screen. There isn't much difference between "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB" in terms of performance or specifications. Because both have advantages and disadvantages, I think that it is best to stick to the most important points that you want to emphasize.

vivo X21 UD (2018) 128GB

Galaxy S8+ SC-03J docomo 64GB

Handling59/10057/100
Display79/10089/100
CPU specs96/10091/100
General rating81/10080/100

Is it recommended to buy the vivo X21 UD (2018) 128GB, compared with other smartphones?

Compared to other smartphones, the "vivo X21 UD (2018) 128GB" is averagely easy to hold. Although it can be a little difficult, it is the right size to be able to operate with one hand. The screen size is larger than that of standard smartphones. It is suited for typing long texts and so can be used to read or edit office texts. In addition, its processing capability is quite excellent compared to the average smart phone. It is suitable for almost all uses, including games and VR. It may be a bit extravagant for normal use. Looking at the overall specifications, the "vivo X21 UD (2018) 128GB" is a high-end smart phone.

Is it recommended to buy the Galaxy S8+ SC-03J docomo 64GB, compared with other smartphones?

Compared to other smartphones, the "Galaxy S8+ SC-03J docomo 64GB" is averagely easy to hold. Although it can be a little difficult, it is the right size to be able to operate with one hand. The screen size is larger than that of standard smartphones. It is suited for typing long texts and so can be used to read or edit office texts. In addition, its processing capability is quite excellent compared to the average smart phone. It is suitable for almost all uses, including games and VR. It may be a bit extravagant for normal use. Looking at the overall specifications, the "Galaxy S8+ SC-03J docomo 64GB" is a high-end smart phone.

What are the spec differences between the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB" ?

A summary of the technical specifications of the "vivo X21 UD (2018) 128GB" and "Galaxy S8+ SC-03J docomo 64GB". Functions and performance variations on the same model will be highlighted in red.

vivo X21 UD (2018) 128GBGalaxy S8+ SC-03J docomo 64GB
vivo X21 UD (2018) 128GBGalaxy S8+ SC-03J docomo 64GB
ColorBlack/Ruby RedMidnight Black/Arctic Silver
OSAndroidAndroid
Dimensions (width x height x thickness)74.8mm x 154.5mm x 7.4mm73.0mm x 160.0mm x 8.3mm
Weight156.2g173.0g
Display size6.28inch6.2inch
Display typeSuper AMOLEDSuper AMOLED
Screen resolution (width x height)1080 x 22801440 x 2960
Pixel density401ppi530ppi
Battery capacity3200.0mAh3500.0mAh
ChipsetQualcomm SDM660 Snapdragon 660Snapdragon 835 MSM8998
CPU specs2.2GHz+1.8GHz×8(8.0-cores)2.6GHz×8(8.0-cores)
RAM size6.0GB4.0GB
Storage size128.0GB64.0GB
Rear-camera resolution12.0MP12.2MP
Front-camera resolution12.0MP8.0MP

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