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Home > New Gear > VIVO Y91 performance review
VIVO Y91 performance review

VIVO Y91 performance review

By  Zim Watson 2019-05-17 2609 0

Evaluation and verification of VIVO Y91 battery and camera operability, CPU processing performance, etc. We also evaluated the ease of use, ease of use, and whether the screen is easy to see.


VIVO Y91 Pros and cons


  • It's a big screen, so it's suitable for video and games
  • Since the CPU performance is quite high, I have almost no problems with the application in daily operation


  • Since the performance of the rear camera is pretty low, you should not think much about using it as the main camera

Functional and performance evaluation of VIVO Y91

Dimensions of VIVO Y91

VIVO Y91 is the width 29.6 in (75.1 mm), the vertical width 61.1 in (155.1 mm) and the thickness 3.3 in (8.3 mm). In some cases you can work with one hand, but some people will feel a bit bigger. The weight of VIVO Y91 is also about 5.8 oz (163.5 g). Even if you have it with one hand, you will not feel heavy. However, in some cases, you may feel tired when working longer hours.

The size of VIVO Y91 is average ease of keeping. It is not a problem if you use it after understanding the pros and cons.

CPU processing power of VIVO Y91

The processing power of VIVO Y91 is 1.95GHz + 1.45GHz × 8 (OctaCore) and the performance is high and I feel no stress even if any application is used. It's a pretty high performance of smartphones that have been released so far. Even in relatively heavy 3D games, it is possible to play almost without stress.

The RAM of VIVO Y91 is 3GB and it has sufficient capacity. In rare cases, memory may run short, but you will hardly feel bothered about RAM.

When evaluating the overall operating speed of VIVO Y91 is a high-end smartphone that can be used with virtually no stress. However, it is necessary to be careful when using heavy applications like 3D games.

Storage capacity of VIVO Y91

The storage capacity of the data in VIVO Y91 is 32GB. It's enough for taking pictures, but you may find it inadequate for people who frequently shoot videos and those who download lots of games.

VIVO Y91 corresponds to the SD card, it is possible to simply increase the free space. It is unlikely that you need to be aware of the storage capacity.

The screen of VIVO Y91

VIVO Y91 has a 6.22 inch display. It is the screen size of VIVO Y91 6.22 inches. There is a presence on a very big screen. It is possible to enjoy photos, videos and games, and it is useful for creating business sentences.

The beauty of the screen image of VIVO Y91 is neither good nor bad. There is no problem for everyday use, but it may not be enough for those who want to enjoy movies and games.

Camera power

The number of pixels of the rear camera in VIVO Y91 is 2 MP, which is rather low power. If you do not care about the picture / video quality, or if you usually do not shoot, you will not have a problem, but otherwise you should choose a better smartphone.

In addition, the number of pixels of the front camera mounted on VIVO Y91 is 8 MP, which is a general performance level. It's enough to take a picture of your face, but if you take pictures with several people or print photos, for example, you may feel a bit dissatisfied.

Overall rating of VIVO Y91

VIVO Y91 is a smartphone with relatively high performance. Although it may be a bit uncomfortable for everyday use as the main tablet device, it is generally an acceptable range.

Specifications and functions of VIVO Y91




Release date

11, 2018


starry black, ocean blue



Size of the main unit (width x length x thickness)

29.6 in (75.1 mm) x 61.1 in (155.1 mm) x 3.3 in (8.3 mm)


5.8 oz (163.5 g)

screen size

6.22 inches

LCD screen


Screen resolution (width x height)


Screen pixel density


battery capacity



Qualcomm SDM439 Snapdragon 439

processing power

1.95GHz + 1.45GHz × 8 (OctaCore)





Number of pixels of the rear camera

2 MP

Front camera performance

8 MP


 You may also want to read:
 VIVO S1 Pro appears on official web: full screen with pop-up camera and 48MP triple rear cameras
 VIVO V15 Pro vs. VIVO V15: here’s how the two smartphones differ in price, specs, features and more
 VIVO iQOO review: a monster flagship with 12GB memory and customized Monster Touch key


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