Should you buy Xiaomi Mi 9 Pro or vivo S1 (China)? Compare the differences in functions and specifications/performances thoroughly.

Created date: 09/24/2019, 19:22:16, Updated date: 10/01/2019, 12:13:08

Xiaomi Mi 9 Provivo S1 (China)
Xiaomi Mi 9 Provivo S1 (China)

A thorough comparison of the Xiaomi Mi 9 Pro and vivo S1 (China). We compared and explained the differences between each. We made it easy for beginners to understand which of these two smartphone they should choose.

Xiaomi Mi 9 Provivo S1 (China)
Xiaomi Mi 9 Pro

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vivo S1 (China)

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General rating:

80.8/100

(The 34th of all smartphones)

78.4/100

(The - of all smartphones)

Holding comfort
62/100
59/100
Weight
52/100
54/100
Screen size
90/100
90/100
Display quality
84/100
83/100
Battery life
80/100
79/100
Processing power
98/100
90/100
Memory capacity
99/100
90/100
Storage capacity
95/100
90/100
Rear camera performance
97/100
59/100
Front camera performance
81/100
88/100

Xiaomi Mi 9 Pro and vivo S1 (China), performance comparison.

Xiaomi Mi 9 Pro and vivo S1 (China) 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 Xiaomi Mi 9 Pro has a width of 29.4 in (74.6 mm), a length of 61.9 in (157.2 mm), and a thickness of 3.3 in (8.5 mm).Also, the vivo S1 (China) has a width of 29.9 in (76 mm), a length of 63.8 in (162 mm), and a thickness of 3.3 in (8.5 mm).

Comparing the width and thickness of the body, there isn't much difference between the Xiaomi Mi 9 Pro and vivo S1 (China) in terms of size. For that reason, the ease of gripping and carrying the devices in one hand is about the same for both. Therefore it's better to compare them in terms of performance and functionality.

Comparing the width and thickness of the body, there isn't a large difference in size between the Xiaomi Mi 9 Pro and the vivo S1 (China). 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, there isn't a big difference in size between the Xiaomi Mi 9 Pro and the vivo S1 (China). For that reason the ease of carrying and use with one hand is about the same for both. That's why it is better to compare the two in terms of other aspects of performance and functionality.

ScoreDimensions (width x height x thickness)
Xiaomi Mi 9 Pro62/10029.4 in (74.6 mm) x 61.9 in (157.2 mm) x 3.3 in (8.5 mm)
vivo S1 (China)59/10029.9 in (76 mm) x 63.8 in (162 mm) x 3.3 in (8.5 mm)

Xiaomi Mi 9 Pro and vivo S1 (China), 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 Xiaomi Mi 9 Pro is about 6.9 oz (196 g), and the weight of the vivo S1 (China) is about 6.7 oz (189.5 g).Comparing the weight of the two devices, there isn't much difference in weight between the Xiaomi Mi 9 Pro and vivo S1 (China). That's why the likelihood of fatigue in the fingers and wrists after extended use is about the same for both. That's why it is better to compare the two in terms of other aspects of performance and functionality.

ScoreWeight
Xiaomi Mi 9 Pro52/1006.9 oz (196 g)
vivo S1 (China)54/1006.7 oz (189.5 g)

Xiaomi Mi 9 Pro and vivo S1 (China), 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 Xiaomi Mi 9 Pro has a 6.39 inch display. Also, the vivo S1 (China) has a 6.53 inch display.Comparing the screen size, there is a negligible difference in screen size between the Xiaomi Mi 9 Pro and the vivo S1 (China). 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
Xiaomi Mi 9 Pro90/1006.39 inch
vivo S1 (China)90/1006.53 inch

Xiaomi Mi 9 Pro and vivo S1 (China), 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 Xiaomi Mi 9 Pro is 1080 x 2340, and pixel density is 403ppi. Also, the resolution on the vivo S1 (China) is 1080 x 2340, and pixel density is 394ppi.Comparing the pixel count, the difference in pixel density between the Xiaomi Mi 9 Pro and the vivo S1 (China) 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
Xiaomi Mi 9 Pro84/100403ppi
vivo S1 (China)83/100394ppi

Xiaomi Mi 9 Pro and vivo S1 (China), 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.

The Xiaomi Mi 9 Pro is 4000mAh, and the vivo S1 (China) is 3940mAh.Regarding battery capacity, there is a negligible difference in battery capacity between the Xiaomi Mi 9 Pro and vivo S1 (China). Since both have roughly equal battery life, you are better off comparing them based on other aspects of performance and functionality.

ScoreBattery capacity
Xiaomi Mi 9 Pro80/1004000mAh
vivo S1 (China)79/1003940mAh

Xiaomi Mi 9 Pro and vivo S1 (China), 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 Xiaomi Mi 9 Pro's CPU is a Qualcomm SDM855 Snapdragon 855+, with performance measured at 2.96GHz+2.42GHz×8(OctaCore).Also, the vivo S1 (China)'s CPU is a Mediatek Helio P70, with performance measured at 2.1GHz+2.0GHz×8(OctaCore).Comparing CPU performance, the Xiaomi Mi 9 Pro has higher specs compared to the vivo S1 (China). For that reason, the Xiaomi Mi 9 Pro allows for more comfortable use of apps, and games that run more smoothly. That's why we recommend the Xiaomi Mi 9 Pro over the vivo S1 (China).

ScoreCPU specs
Xiaomi Mi 9 Pro98/1002.96GHz+2.42GHz×8(OctaCore)
vivo S1 (China)90/1002.1GHz+2.0GHz×8(OctaCore)

Xiaomi Mi 9 Pro and vivo S1 (China), 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 Xiaomi Mi 9 Pro is 12GB and the weight of the vivo S1 (China) is 6GB.Comparing the devices in terms of RAM, the Xiaomi Mi 9 Pro has more RAM than the vivo S1 (China), with a difference of about 6.0GB. For that reason the Xiaomi Mi 9 Pro allows for smoother multitasking than the vivo S1 (China), and apps are less likely to crash. In addition the Xiaomi Mi 9 Pro allows for smoother enjoyment of 3D games and VR. For this reason, we recommend the Xiaomi Mi 9 Pro.

ScoreRAM size
Xiaomi Mi 9 Pro99/10012GB
vivo S1 (China)90/1006GB

Xiaomi Mi 9 Pro and vivo S1 (China), 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 Xiaomi Mi 9 Pro is 512GB. Also the vivo S1 (China) is 128GB.Regarding storage capacity, there is a negligible difference in storage capacity between the Xiaomi Mi 9 Pro and vivo S1 (China). 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
Xiaomi Mi 9 Pro95/100512GB
vivo S1 (China)90/100128GB

Xiaomi Mi 9 Pro and vivo S1 (China) 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.

Xiaomi Mi 9 Pro has a 48 MP main camera. Also, vivo S1 (China) has a 12 MP main camera.Comparing rear camera performance, the Xiaomi Mi 9 Pro has a much higher pixel count compared to the vivo S1 (China), with a roughly 36.0 MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the Xiaomi Mi 9 Pro is superior to the vivo S1 (China). If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the Xiaomi Mi 9 Pro over the vivo S1 (China).

ScoreRear-camera resolution
Xiaomi Mi 9 Pro97/10048 MP
vivo S1 (China)59/10012 MP

Xiaomi Mi 9 Pro and vivo S1 (China), 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.

Xiaomi Mi 9 Pro has an 20 MP front camera and vivo S1 (China) has an 25 MP front camera.Comparing rear camera performance, the front camera of the vivo S1 (China) has a higher pixel count than the Xiaomi Mi 9 Pro, with a roughly 5.0 MP difference. As a result, the vivo S1 (China) is better able to take high quality selfies than the Xiaomi Mi 9 Pro, and the pictures will look cleaner when printed. Therefore, we recommend the vivo S1 (China).

ScoreFront-camera resolution
Xiaomi Mi 9 Pro81/10020 MP
vivo S1 (China)88/10025 MP

Detailed comparison of Xiaomi Mi 9 Pro and vivo S1 (China).

Comparison for body size.

ImageProduct nameReviewbody size

Xiaomi Mi 9 Pro

Score

52.3Dimensions (width x height x thickness):29.4 in (74.6 mm) x 61.9 in (157.2 mm) x 3.3 in (8.5 mm)

vivo S1 (China)

Score

50.0Dimensions (width x height x thickness):29.9 in (76 mm) x 63.8 in (162 mm) x 3.3 in (8.5 mm)

Comparison for body weight.

ImageProduct nameReviewbody weight

Xiaomi Mi 9 Pro

Score

52.0Weight:6.9 oz (196 g)

vivo S1 (China)

Score

54.6Weight:6.7 oz (189.5 g)

Comparison for screen size.

ImageProduct nameReviewscreen size

Xiaomi Mi 9 Pro

Score

90.7Display size:6.39 inch

vivo S1 (China)

Score

90.9Display size:6.53 inch

Comparison for RAM capacity.

ImageProduct nameReviewRAM capacity

Xiaomi Mi 9 Pro

Score

99.0RAM size:12GB

vivo S1 (China)

Score

90.0RAM size:6GB

Comparison for storage size.

ImageProduct nameReviewstorage size

Xiaomi Mi 9 Pro

Score

95.0Storage size:512GB

vivo S1 (China)

Score

90.0Storage size:128GB

Comparison for battery.

ImageProduct nameReviewbattery

Xiaomi Mi 9 Pro

Score

80.0Battery capacity:4000mAh

vivo S1 (China)

Score

79.1Battery capacity:3940mAh

Comparison for rear-camera resolution.

ImageProduct nameReviewrear-camera resolution

Xiaomi Mi 9 Pro

Score

97.8Rear-camera resolution:48 MP

vivo S1 (China)

Score

59.3Rear-camera resolution:12 MP

Comparison for front-camera resolution.

ImageProduct nameReviewfront-camera resolution

Xiaomi Mi 9 Pro

Score

81.0Front-camera resolution:20 MP

vivo S1 (China)

Score

88.0Front-camera resolution:25 MP

Comparison for grip.

ImageProduct nameReviewgrip

Xiaomi Mi 9 Pro

Score

52.2Color:Dream white,titanium black, Dimensions (width x height x thickness):29.4 in (74.6 mm) x 61.9 in (157.2 mm) x 3.3 in (8.5 mm), Weight:6.9 oz (196 g)

vivo S1 (China)

Score

52.3Color:Blue,pink,ice black, Dimensions (width x height x thickness):29.9 in (76 mm) x 63.8 in (162 mm) x 3.3 in (8.5 mm), Weight:6.7 oz (189.5 g)

Comparison for screen cleanliness.

ImageProduct nameReviewscreen cleanliness

Xiaomi Mi 9 Pro

Score

84.9Display type:Super AMOLED, Screen resolution (width x height):1080 x 2340, Pixel density:403ppi

vivo S1 (China)

Score

83.6Display type:IPS LCD, Screen resolution (width x height):1080 x 2340, Pixel density:394ppi

Comparison for performance.

ImageProduct nameReviewperformance

Xiaomi Mi 9 Pro

Score

98.9OS:Android, Chipset:Qualcomm SDM855 Snapdragon 855+, CPU specs:2.96GHz+2.42GHz×8(OctaCore), RAM size:12GB

vivo S1 (China)

Score

90.2OS:Android, Chipset:Mediatek Helio P70, CPU specs:2.1GHz+2.0GHz×8(OctaCore), RAM size:6GB

Xiaomi Mi 9 Pro and vivo S1 (China), performance comparison by specification sheet.

Xiaomi Mi 9 Provivo S1 (China)
ImageXiaomi Mi 9 Provivo S1 (China)
MakerXiaomivivo
Release date9, 20194, 2019
Colordream white,titanium blackblue,pink,ice black
OSAndroidAndroid
Dimensions (width x height x thickness)29.4 in (74.6 mm) x 61.9 in (157.2 mm) x 3.3 in (8.5 mm)29.9 in (76 mm) x 63.8 in (162 mm) x 3.3 in (8.5 mm)
Weight6.9 oz (196 g)6.7 oz (189.5 g)
Display size6.39 inch6.53 inch
Display typeSuper AMOLEDIPS LCD
Screen resolution (width x height)1080 x 23401080 x 2340
Pixel density403ppi394ppi
Battery capacity4000mAh3940mAh
ChipsetQualcomm SDM855 Snapdragon 855+Mediatek Helio P70
CPU specs2.96GHz+2.42GHz×8(OctaCore)2.1GHz+2.0GHz×8(OctaCore)
RAM size12GB6GB
Storage size512GB128GB
Rear-camera resolution48 MP12 MP
Front-camera resolution20 MP25 MP

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