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Which should you buy, the vivo S1 (2019) 128GB or Oppo A77 (Mediatek) 64GB? We offer a thorough comparison of the differences in functions, specifications and performance between the two

Created date: 2019-07-11 04:26:33, Updated date: 2020-04-16 16:38:28

vivo S1 (2019) 128GBOppo A77 (Mediatek) 64GB
vivo S1 (2019) 128GBOppo A77 (Mediatek) 64GB

Here's our thorough comparison of the difference in performance and function between the "vivo S1 (2019) 128GB" and "Oppo A77 (Mediatek) 64GB". Which one should you buy? We'll compare and explain what differs between the "vivo S1 (2019) 128GB" and "Oppo A77 (Mediatek) 64GB" in a way that even people who aren't used to choosing between two similar products can understand.

vivo S1 (2019) 128GBOppo A77 (Mediatek) 64GB
vivo S1 (2019) 128GB

Oppo A77 (Mediatek) 64GB

General rating:

73.2/100

(The 3354th of all smartphones)

63.7/100

(The 1186th of all smartphones)

Portability
62/100
63/100
Weight
58/100
69/100
Size of screen
90/100
82/100
Screen clarity
84/100
85/100
Battery duration
81/100
68/100
Processing capability
89/100
67/100
Memory capacity
90/100
70/100
Storage capacity
90/100
67/100
Rear camera function
68/100
61/100
Front camera function
97/100
75/100

Compare Performance and Usability

Size comparison of "vivo S1 (2019) 128GB" and "Oppo A77 (Mediatek) 64GB". 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 "vivo S1 (2019) 128GB" is 75.2mm wide, 159.5mm tall, and 8.1mm thick. The "Oppo A77 (Mediatek) 64GB" is 75.2mm tall, 153.3mm wide, and 7.3mm thick.

There is no real difference between the "vivo S1 (2019) 128GB" and "Oppo A77 (Mediatek) 64GB" when comparing their width, thickness, and slimness; they are both around the same in terms of one-handed ease of use and carry. Because of this, it is better to compare them based on other aspects of performance and function.

There is no real difference in length or width between the "vivo S1 (2019) 128GB" and "Oppo A77 (Mediatek) 64GB", so they are both about the same in terms of usability, ease of carry, and bulkiness. Because of this, it is better to compare them based on other aspects of performance and function.

When comparing their sizes as a whole, there is no real difference between the "vivo S1 (2019) 128GB"and "Oppo A77 (Mediatek) 64GB". Thus they are roughly the same in terms of ease of carry and one-handed use. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreDimensions (width x height x thickness)
vivo S1 (2019) 128GB62/10075.2mm x 159.5mm x 8.1mm
Oppo A77 (Mediatek) 64GB63/10075.2mm x 153.3mm x 7.3mm

Which one is easier to hold, "vivo S1 (2019) 128GB" or "Oppo A77 (Mediatek) 64GB"? 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 "vivo S1 (2019) 128GB" weighs 179.0g. The "Oppo A77 (Mediatek) 64GB" clocks in at 153.0g. If you compare the weight of the two, the "Oppo A77 (Mediatek) 64GB" is a considerably lighter smartphone than the "vivo S1 (2019) 128GB", with a difference of about 26g. Because of this, the "Oppo A77 (Mediatek) 64GB" puts less of a burden on the fingers and wrists than the "vivo S1 (2019) 128GB". 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 "Oppo A77 (Mediatek) 64GB" rather than the "vivo S1 (2019) 128GB".

ScoreWeight
vivo S1 (2019) 128GB58/100179.0g
Oppo A77 (Mediatek) 64GB69/100153.0g

Which is better in terms of display, "vivo S1 (2019) 128GB" or "Oppo A77 (Mediatek) 64GB"?

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 "vivo S1 (2019) 128GB" is 6.38inch, and 5.5inch on the "Oppo A77 (Mediatek) 64GB". Comparing the size of the display and screen, the screen size of the "vivo S1 (2019) 128GB" is larger than that of the "Oppo A77 (Mediatek) 64GB", with a difference of approximately 0.87inch. As a result, there will be unintended touches on the "vivo S1 (2019) 128GB" compared to the "Oppo A77 (Mediatek) 64GB" and it is possible to enjoy games and videos on a large screen. For this reason, the "vivo S1 (2019) 128GB" is recommended.

ScoreDisplay size
vivo S1 (2019) 128GB90/1006.38inch
Oppo A77 (Mediatek) 64GB82/1005.5inch

Which one has a better display, "vivo S1 (2019) 128GB" or "Oppo A77 (Mediatek) 64GB"?

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 "vivo S1 (2019) 128GB" has a 1080 x 2340 resolution and a pixel density of 403ppi. The "Oppo A77 (Mediatek) 64GB", on the other hand, has a screen resolution of 1080 x 1920 and a pixel density of 400ppi. There is not much of a difference in the pixel resolutions of the "vivo S1 (2019) 128GB" and "Oppo A77 (Mediatek) 64GB", 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
vivo S1 (2019) 128GB84/100403ppi
Oppo A77 (Mediatek) 64GB85/100400ppi

How is the battery duration of "vivo S1 (2019) 128GB" different from that of "Oppo A77 (Mediatek) 64GB" ? 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.

The "vivo S1 (2019) 128GB" has a battery capacity of 4500.0mAh, while the "Oppo A77 (Mediatek) 64GB" has a 3200.0mAh battery. With regards to battery performance, the "vivo S1 (2019) 128GB" has a substantially larger battery capacity than the "Oppo A77 (Mediatek) 64GB", with a difference of 1300mAh. The "vivo S1 (2019) 128GB" can be used without charging for a longer time than the "Oppo A77 (Mediatek) 64GB", so it can be used when out and about. If you want a smartphone with a longer-lasting battery, we recommend that you buy the "vivo S1 (2019) 128GB" rather than the "Oppo A77 (Mediatek) 64GB".

ScoreBattery capacity
vivo S1 (2019) 128GB81/1004500.0mAh
Oppo A77 (Mediatek) 64GB68/1003200.0mAh

Which is better in terms of CPU function, "vivo S1 (2019) 128GB" or "Oppo A77 (Mediatek) 64GB"?

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 "vivo S1 (2019) 128GB" is equipped with a Mediatek MT6768 Helio P65 processor, and its performance speed is 2.0GHz+1.7GHz×8(8.0-cores). The "Oppo A77 (Mediatek) 64GB" uses an Mediatek MT6750T CPU that performs at a speed of 1.5GHz+1.0GHz×8(8.0-cores). Comparing CPU performance, the "vivo S1 (2019) 128GB" has significantly higher specs than the "Oppo A77 (Mediatek) 64GB". The "vivo S1 (2019) 128GB" proves to be more advanced than the "Oppo A77 (Mediatek) 64GB" in the way that apps run quickly and games play smoothly. If you're looking for a high-spec smartphone that runs quickly and plays games smoothly, we recommend that you buy the "vivo S1 (2019) 128GB" rather than the "Oppo A77 (Mediatek) 64GB".

ScoreCPU specs
vivo S1 (2019) 128GB89/1002.0GHz+1.7GHz×8(8.0-cores)
Oppo A77 (Mediatek) 64GB67/1001.5GHz+1.0GHz×8(8.0-cores)

How is "vivo S1 (2019) 128GB" different from "Oppo A77 (Mediatek) 64GB" 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 "vivo S1 (2019) 128GB" has 6.0GB of memory. The "Oppo A77 (Mediatek) 64GB", on the other hand, has 4.0GB. As for memory performance, the "vivo S1 (2019) 128GB" has a larger memory capacity than the "Oppo A77 (Mediatek) 64GB", with a difference of about 2GB. The "vivo S1 (2019) 128GB" has better multitasking, less crashing, and runs 3D games and VR video better than the "Oppo A77 (Mediatek) 64GB". If you're looking for a smartphone that will remain stable even when you are using multiple apps at the same time, and which will allow you to play 3D games and VR video comfortably, we recommend that you buy the "vivo S1 (2019) 128GB" rather than the "Oppo A77 (Mediatek) 64GB".

ScoreRAM size
vivo S1 (2019) 128GB90/1006.0GB
Oppo A77 (Mediatek) 64GB70/1004.0GB

Which has a better storage capacity, "vivo S1 (2019) 128GB" or "Oppo A77 (Mediatek) 64GB"?

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 "vivo S1 (2019) 128GB" has 128.0GB of storage, while the "Oppo A77 (Mediatek) 64GB" has 64.0GB. In terms of ROM and data storage, the "vivo S1 (2019) 128GB" has a much larger capacity than the "Oppo A77 (Mediatek) 64GB", with a difference of about 64GB. The "vivo S1 (2019) 128GB" can save more photos and keep more apps installed than the "Oppo A77 (Mediatek) 64GB". If you're searching for a smartphone that can store more data, we recommended that you buy the "vivo S1 (2019) 128GB" rather than the "Oppo A77 (Mediatek) 64GB".

ScoreStorage size
vivo S1 (2019) 128GB90/100128.0GB
Oppo A77 (Mediatek) 64GB67/10064.0GB

Compare the rear cameras of "vivo S1 (2019) 128GB" and "Oppo A77 (Mediatek) 64GB". 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 "vivo S1 (2019) 128GB" has 16.0MP. The "Oppo A77 (Mediatek) 64GB" has 13.0MP. Comparing the rear camera performance, the number of pixels of the "vivo S1 (2019) 128GB" is higher than the "Oppo A77 (Mediatek) 64GB", with a difference of approximately 3MP. As a result, the "vivo S1 (2019) 128GB" can take higher quality scenery photos and make clear prints compared to the "Oppo A77 (Mediatek) 64GB". Therefore, the "vivo S1 (2019) 128GB" is recommended.

ScoreRear-camera resolution
vivo S1 (2019) 128GB68/10016.0MP
Oppo A77 (Mediatek) 64GB61/10013.0MP

Which has a front camera with better picture quality, "vivo S1 (2019) 128GB" or "Oppo A77 (Mediatek) 64GB"?

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 "vivo S1 (2019) 128GB" has a resolution of 32.0MP. The "Oppo A77 (Mediatek) 64GB"'s has 16.0MP. The front-facing camera of the "vivo S1 (2019) 128GB" has a significantly higher number of pixels than the "Oppo A77 (Mediatek) 64GB", with a difference of about 16MP. Therefore, the "vivo S1 (2019) 128GB" is more suitable for taking photos and videos than the "Oppo A77 (Mediatek) 64GB". If you want to take and print high-quality selfies, we recommend buying the "vivo S1 (2019) 128GB" rather than the "Oppo A77 (Mediatek) 64GB".

ScoreFront-camera resolution
vivo S1 (2019) 128GB97/10032.0MP
Oppo A77 (Mediatek) 64GB75/10016.0MP

Compare Performance Specs

vivo S1 (2019) 128GBOppo A77 (Mediatek) 64GB
Imagevivo S1 (2019) 128GBOppo A77 (Mediatek) 64GB
MakervivoOppo
Release date2019-072017-05
ColorDiamond Black/Skyline Blue/Cosmic GreenGold/Rose Gold/Black
OSAndroidAndroid
Dimensions (width x height x thickness)75.2mm x 159.5mm x 8.1mm75.2mm x 153.3mm x 7.3mm
Weight179.0g153.0g
Display size6.38inch5.5inch
Display typeSuper AMOLEDIPS LCD
Screen resolution (width x height)1080 x 23401080 x 1920
Pixel density403ppi400ppi
Battery capacity4500.0mAh3200.0mAh
ChipsetMediatek MT6768 Helio P65Mediatek MT6750T
CPU specs2.0GHz+1.7GHz×8(8.0-cores)1.5GHz+1.0GHz×8(8.0-cores)
RAM size6.0GB4.0GB
Storage size128.0GB64.0GB
Rear-camera resolution16.0MP13.0MP
Front-camera resolution32.0MP16.0MP

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