Browsing this site requires consent to the privacy policy. By continuing to browse, you agree to our privacy policy. If you do not agree, please stop browsing. Privacy policy

All our articles is independent of any advertiser or commercial initiative, and if you buy something through our posts, we may get a small share of the sale. Click here for more information.

Which one is better, the vivo U20 (2019) 64GB or Oppo A91 (2019) 128GB? We did a deep-dive comparison categorised by purpose of use!

Created date: 2019-12-19 17:06:31, Updated date: 2021-10-20 13:32:21

Oppo A91 (2019) 128GBvivo U20 (2019) 64GB
Oppo A91 (2019) 128GBvivo U20 (2019) 64GB

How are the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB" different? We have tested and evaluated their differences. We also explain which one may be best for you.

Oppo A91 (2019) 128GBvivo U20 (2019) 64GB
Oppo A91 (2019) 128GB

vivo U20 (2019) 64GB

General rating:

73.3/100

(The 3352th of all smartphones)

70.1/100

(The 3456th of all smartphones)

Grip
58/100
49/100
Screen quality
81/100
80/100
Performance
98/100
95/100
Storage size
90/100
84/100
Battery
100/100
100/100
Rear-camera resolution
100/100
80/100
Front-camera resolution
100/100
100/100

What is the difference between the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB"? See a detailed comparison of ease of use and performance

Comparison of weight and size of the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB"

The design of Oppo A91 (2019) 128GB

The "Oppo A91 (2019) 128GB" is 160.2mm long, 73.3mm wide, and 7.9mm thick. It weighs 172.0g.

The design of vivo U20 (2019) 64GB

The "vivo U20 (2019) 64GB" is 162.2mm long, 76.5mm wide, and 8.9mm thick. It weighs 193.0g.

Which is the better design to use?

In comparison, the size difference is 2mm in length, 3.2mm in width, and 1mm in thickness. "Oppo A91 (2019) 128GB" is easy to use with a single hand, and its size makes it easier to hold. "Oppo A91 (2019) 128GB" is bigger than "vivo U20 (2019) 64GB", which makes it easier to type on it via flick input. Both the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB" are basically equally portable and easy to handle.

The difference in weight is 21g. The "Oppo A91 (2019) 128GB" is much lighter, putting less burden on the hand.

Oppo A91 (2019) 128GB

vivo U20 (2019) 64GB

Ease of holding it in one hand68/10059/100
How much it does not feel heavy to hold in one hand38/10024/100
Ease of carrying around62/10057/100

Compare the display of the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB"

Display of the Oppo A91 (2019) 128GB

The "Oppo A91 (2019) 128GB" uses a AMOLED liquid crystal. The resolution is 1080 x 2400, and the pixel density is 411ppi. The "Oppo A91 (2019) 128GB" has a 6.4inch screen size.

Display of the vivo U20 (2019) 64GB

The "vivo U20 (2019) 64GB" uses a IPS LCD liquid crystal. The resolution is 1080 x 2340, and the pixel density is 394ppi. The "vivo U20 (2019) 64GB" has a 6.53inch screen size.

Which has a better screen?

This makes a 0.12inch 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 "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose. The gaming screens of these two phones are roughly the same size. Both the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose.

There is very little difference in the clarity of the displays of "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB" when used for research, gaming, or other similar purposes. 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. "Oppo A91 (2019) 128GB" is comparatively more suited for use with VR as it has a sleeker display.

Oppo A91 (2019) 128GB

vivo U20 (2019) 64GB

How suited is the screen for usual usage?79/10080/100
How suited is the screen to play games on?83/10084/100

Compare the camera performances of the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB"

Camera performance of Oppo A91 (2019) 128GB

The main camera of the "Oppo A91 (2019) 128GB" has 48.0MP. The front camera has 16.0MP.

Camera performance of vivo U20 (2019) 64GB

The main camera of the "vivo U20 (2019) 64GB" has 16.0MP. The front camera has 16.0MP.

Which camera performance is better?

The back cameras thus have a 32MP difference in comparison. The "Oppo A91 (2019) 128GB" also functions better for long-shot photos for the perfect group photo or a picturesque shot of a beautiful location. 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 "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose.

When shooting objects or people with the front phone camera from a short distance, such as taking a selfie with a selfie-stick, there is very little difference between the pixel counts of the two phones, even when it comes to the scenery in the background of such photographs. Both the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose. There is not much difference between the pixel counts of "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB" when it comes to taking close-up photographs such as selfies or profile pics with the front phone camera.

Oppo A91 (2019) 128GB

vivo U20 (2019) 64GB

Is is suited to taking far away objects with the rear camera?100/10080/100
Is it suited for taking close objects with the built-in camera?100/100100/100

Comparison of the processing capabilities of the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB"

The processing capability of the Oppo A91 (2019) 128GB

Performance is defined by the chipset, and the "Oppo A91 (2019) 128GB" uses the Mediatek MT6771V Helio P70 SoC. The CPU performance is 2.1GHz+2.0GHz×8(8.0-cores). The memory capacity is 8.0GB.

The processing capability of the vivo U20 (2019) 64GB

Performance is defined by the chipset, and the "vivo U20 (2019) 64GB" uses the Qualcomm SDM675 Snapdragon 675 SoC. The CPU performance is 2.0GHz+1.7GHz×8(8.0-cores). The memory capacity is 6.0GB.

Which has the better processing capability?

"Oppo A91 (2019) 128GB" has a slightly better CPU performance and better specs overall. This is a 2GB difference in memory capacity. The memory of "Oppo A91 (2019) 128GB" is slightly larger, so "Oppo A91 (2019) 128GB" is recommended over "vivo U20 (2019) 64GB" for multitasking.

For phone calls, emails, messaging, using SNS or most fundamental features, the differences between the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 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 "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" equally. Both the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose.

There is basically no difference between "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB" when playing 2D games or basic 3D games. Functionality is about the same for full-scale 3D games, no matter which phone model is used. Both the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose.

Oppo A91 (2019) 128GB

vivo U20 (2019) 64GB

Review on the CPU capbility and memory capacity when using Social Networks or the Internet100/10095/100
Review on the CPU speed and the memory capacity while playing 3D games97/10094/100

Comparison of the battery life of the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB"

Battery performance of Oppo A91 (2019) 128GB

The "Oppo A91 (2019) 128GB" has a battery capacity of 4025.0mAh.

Battery performance of vivo U20 (2019) 64GB

The "vivo U20 (2019) 64GB" has a battery capacity of 5000.0mAh.

Which battery perfomances is better?

This makes a difference in battery capacity of 975mAh, 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.

The "vivo U20 (2019) 64GB" is also a great choice for those who only use their phone for occasional phone calls or for checking the time. 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 "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB". Both the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 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 "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose.

Oppo A91 (2019) 128GB

vivo U20 (2019) 64GB

Review on the battery life of a phone mainly using Social Networks and the Internet100/100100/100
Review on the battery life of a phone mainly using mainly games and videos100/100100/100

Compare the storage capacity of the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB"

The storage capacity of the Oppo A91 (2019) 128GB

The "Oppo A91 (2019) 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 vivo U20 (2019) 64GB

The "vivo U20 (2019) 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. "Oppo A91 (2019) 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 "Oppo A91 (2019) 128GB" for fulfilling their storage needs, as the "vivo U20 (2019) 64GB" unfortunately falls behind here. Both the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 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 "Oppo A91 (2019) 128GB" or "vivo U20 (2019) 64GB". Both the "Oppo A91 (2019) 128GB" and the "vivo U20 (2019) 64GB" can be easily used for this kind of purpose.

Oppo A91 (2019) 128GB

vivo U20 (2019) 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 "Oppo A91 (2019) 128GB" or "vivo U20 (2019) 64GB"

At the end of the day which is better, the "Oppo A91 (2019) 128GB" or "vivo U20 (2019) 64GB"?

"Oppo A91 (2019) 128GB" is easier for the user to hold and is more compact, and so it is recommended. If choosing based on screen size, there is hardly any difference between "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB". There isn't much difference between "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 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.

Oppo A91 (2019) 128GB

vivo U20 (2019) 64GB

Handling58/10049/100
Display81/10080/100
CPU specs98/10095/100
General rating87/10083/100

Is it recommended to buy the Oppo A91 (2019) 128GB, compared with other smartphones?

Compared to other smartphones, the "Oppo A91 (2019) 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 "Oppo A91 (2019) 128GB" is a high-end smart phone.

Is it recommended to buy the vivo U20 (2019) 64GB, compared with other smartphones?

Compared to other smartphones, the "vivo U20 (2019) 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 "vivo U20 (2019) 64GB" is a high-end smart phone.

What are the spec differences between the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB" ?

A summary of the technical specifications of the "Oppo A91 (2019) 128GB" and "vivo U20 (2019) 64GB". Functions and performance variations on the same model will be highlighted in red.

Oppo A91 (2019) 128GBvivo U20 (2019) 64GB
Oppo A91 (2019) 128GBvivo U20 (2019) 64GB
ColorLightening Black/Unicorn White/Blazing Blue/RedRacing Black/Blaze Blue
OSAndroidAndroid
Dimensions (width x height x thickness)73.3mm x 160.2mm x 7.9mm76.5mm x 162.2mm x 8.9mm
Weight172.0g193.0g
Display size6.4inch6.53inch
Display typeAMOLEDIPS LCD
Screen resolution (width x height)1080 x 24001080 x 2340
Pixel density411ppi394ppi
Battery capacity4025.0mAh5000.0mAh
ChipsetMediatek MT6771V Helio P70Qualcomm SDM675 Snapdragon 675
CPU specs2.1GHz+2.0GHz×8(8.0-cores)2.0GHz+1.7GHz×8(8.0-cores)
RAM size8.0GB6.0GB
Storage size128.0GB64.0GB
Rear-camera resolution48.0MP16.0MP
Front-camera resolution16.0MP16.0MP

Look at a smartphone

Compare smartphones

Look at a smartphone

Compare smartphones

Check price

New articles