63points

Vivo S1

50points

Vivo Y91

Vivo S1
Comparison winner
Vivo Y91
vs
vs

146 facts in comparison

Vivo S1 vs Vivo Y91

Vivo S1
Vivo Y91
63
points
Vivo S1
50
points
Vivo Y91

Why is Vivo S1 better than Vivo Y91?

  • 11.66% more battery power
    ?

    4500mAhvs4030mAh
  • 46.3% higher pixel density
    ?

    395ppivs270ppi
  • 15.44% faster CPU speed
    ?

    2 x 2GHz & 6 x 1.95GHzvs4 x 1.95 & 4 x 1.45GHz
  • 3GB more RAM memory
    ?

    6GBvs3GB
  • 2.22x higher resolution
    ?

    1080 x 2340pxvs750 x 1520px
  • 1.73x more megapixels (main camera)
    ?

    16MP & 8MP & 2MPvs13 & 2MP
  • 2.57% bigger screen size
    ?

    6.38"vs6.22"
  • 4x more megapixels (front camera)
    ?

    32MPvs8MP

Why is Vivo Y91 better than Vivo S1?

  • LCD display with 3 subpixels per pixels
    ?
  • Has an IPS screen
    ?
  • 15.5g lighter
    ?

    163.5gvs179g
  • Has a BSI sensor
    ?
  • 1.5x faster uploads
    ?

    75MBits/svs50MBits/s
  • 0.1mm narrower
    ?

    75.1mmvs75.2mm
  • 4.4mm shorter
    ?

    155.1mmvs159.5mm
  • Has NX bit
    ?

Price comparison

Vivo S1

Buy used:

$94.99

ProductStorePrice
Vivo S1 AmazonGooplayer for vivo S1 6.53 Inch Mobile P...Gooplayer for vivo S1 6.53 Inch Mobile Phone Octa Core Zero Boundary Full Screen Front 24.80MP Elevating Camera Smartphone (Blue 4GB+128GB)
Amazon logo
$353.16
Vivo S1 AmazonGooplayer for vivo S1 6.53 Inch Mobile P...Gooplayer for vivo S1 6.53 Inch Mobile Phone Octa Core Zero Boundary Full Screen Front 24.80MP Elevating Camera Smartphone (Summer Dream 6GB+256GB)
Amazon logo
$360.69
Vivo S1 aliexpress2019 Original vivo S1 Pro Mobile Phone 6...2019 Original vivo S1 Pro Mobile Phone 6.39" 6GB 256GB Octa Core Front Camera 32MP 3 Rear Cameras Selife 3700mAh Smart phone
aliexpress logo
$399.99

Vivo Y91

Buy used:

$99.99

ProductStorePrice
Vivo Y91 AmazonBLU Vivo XL5-6.3" HD Display Smartphone,...BLU Vivo XL5-6.3" HD Display Smartphone, 64GB+ 3GB RAM- Black
Amazon logo
$109.99
Vivo Y91 AmazonBLU VIVO XI+ - 6.2" Full HD+ Smartphone ...BLU VIVO XI+ - 6.2" Full HD+ Smartphone GSM Unlocked and Verizon Compatible, 128GB+6GB RAM, AI Dual Cameras -Silver
Amazon logo
$249.99
Vivo Y91 AmazonGoogle - Pixel 3a with 64GB Memory Cell ...Google - Pixel 3a with 64GB Memory Cell Phone (Unlocked) - Purple-ish
Amazon logo
$349.99
Vivo Y91 AmazonBLU Vivo XL5-6.3" HD Display Smartphone,...BLU Vivo XL5-6.3" HD Display Smartphone, 64GB+ 3GB RAM- Black (Renewed)
Amazon logo
$99.99
Vivo Y91 walmartVIVO Black Universal Economic 32" to 65"...VIVO Black Universal Economic 32" to 65" LCD Flat Screen TV Table Top Stand | VESA Mount with Glass Base (STAND-TV00H)
walmart logo
$59.99

Design

1.weather-sealed (splashproof)
Vivo S1
Vivo Y91
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
2.weight

179g

163.5g

We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
3.thickness

8.1mm

8.3mm

We consider a thinner chassis better because it makes the product more compact and portable. Thinness is a feature highlighted by many manufacturers of mobile devices, but it is essential for a wide range of products.
4.width

75.2mm

75.1mm

The width represents the horizontal dimension of the product. We consider a smaller width better because it assures easy maneuverability.
5.height

159.5mm

155.1mm

The height represents the vertical dimension of the product. We consider a smaller height better because it assures easy maneuverability.
6.volume

97.15cm³

96.68cm³

Volume is the quantity of three-dimensional space enclosed by the product's chassis or, in simpler terms, the space the product occupies.

Display

1.pixel density

395ppi

270ppi

Pixel density is a measurement of a screen's resolution, expressed as the number of pixels per inch (PPI) on the screen. A higher pixel density translates into more clarity and sharpness for the images rendered on the screen, thus improving the quality of the viewing experience.
2.resolution

1080 x 2340px

750 x 1520px

Resolution is an essential indicator of a screen's image quality, representing the maximum amount of pixels that can be shown on the screen. The resolution is given as a compound value, comprised of horizontal and vertical pixels.
3.screen size

6.38"

6.22"

The bigger the screen size is, the better the user experience.
4.has branded damage-resistant glass
Vivo S1
Vivo Y91
Damage-resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.
5.LCD display with 3 subpixels per pixels
Vivo S1
Vivo Y91
The device has an LCD display with 3 subpixels per pixel, resulting in sharp and crisp images. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.
6.has an IPS screen
Vivo S1
Vivo Y91
IPS (In-Plane Switching) is a technology used for LCDs. It was designed to overcome the main limitations of conventional twisted nematic TFT displays: limited viewing angles and low-quality color reproduction. PLS (Plane-to-Line Switching) is a type of IPS screen developed by Samsung, with increased brightness and lower production costs.

Performance

1.CPU speed

2 x 2GHz & 6 x 1.95GHz (MediaTek Helio P65)

4 x 1.95GHz & 4 x 1.45GHz (Qualcomm Snapdragon 439)

The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.
2.RAM

6GB

3GB

Random-access memory (RAM) is a form of volatile memory used to store working data and machine code currently in use. It is a quick-access, temporary virtual storage that can be read and changed in any order, thus enabling fast data processing.
3.has an external memory slot
Vivo S1
Vivo Y91
The device has a standard memory slot (such as an SD or micro SD card slot) that enables you to extend the built-in internal storage with affordable memory modules, or easily retrieve data, such as photographs, from the memory card.
4.internal storage

128GB

64GB

The internal storage, also called read-only memory (ROM), refers to the built-in storage space available in a device for system data, apps, and user-generated data. With a large amount of internal storage, you can save more files and apps on your device.
5.Has integrated LTE
The system on a chip (SoC) has an integrated LTE cellular chip. LTE is capable of downloading at faster speeds than older, 3G technology.
6.semiconductor size
Small semiconductors provide better performance and reduced power consumption. Chipsets with a higher number of transistors, semiconductor components of electronic devices, offer more computational power. A small form factor allows more transistors to fit on a chip, therefore increasing its performance.

Cameras

1.megapixels (main camera)

16MP & 8MP & 2MP

13MP & 2MP

The number of megapixels determines the resolution of the images captured with the main camera. A higher megapixel count means that the camera is capable of capturing more details. However, the megapixel count is not the only important element determining the quality of an image.
2.megapixels (front camera)

32MP

8MP

The number of megapixels determines the resolution of the images captured with the front camera. A higher megapixel count means that the front camera is capable of capturing more details, an essential factor for taking high-resolution selfies.
3.has built-in optical image stabilization
Vivo S1
Vivo Y91
Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.
4.video recording (main camera)

2160 x 30fps

1080 x 30fps

The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.
5.wide aperture (main camera)

f/1.8 & f/2.2 & f/2.4

f/2.4 & f/2.2

With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
6.Has a dual-tone LED flash
Vivo S1
Vivo Y91
A dual-tone flash has LED lights with different color temperatures, delivering a better color balance to photos and videos.

Audio

1.has stereo speakers
Vivo S1
Vivo Y91
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
2.has a socket for a 3.5 mm audio jack
Vivo S1
Vivo Y91
With a standard mini jack socket, you can use the device with most headphones.
3.Has a radio
Vivo S1
Vivo Y91
A built-in FM radio tuner allows you to listen to most of the live-broadcasted FM radio stations without using the internet.
4.number of microphones

2

2

More microphones result in better sound quality and enable the device to filter out background noise.
5.Has dedicated media keys
Vivo S1
Vivo Y91
Phones with physical keyboards have dedicated media keys, such as: play, stop, next, previous, volume up/down, etc.

Battery

1.battery power

4500mAh

4030mAh

Battery power, or battery capacity, represents the amount of electrical energy that a battery can store. More battery power can be an indication of longer battery life.
2.has a removable battery
Vivo S1
Vivo Y91
The battery is removable and can be replaced by the user if broken.
3.has wireless charging
Vivo S1
Vivo Y91
The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.
4.Supports fast charging
Vivo S1
Vivo Y91
Fast charging technologies, like Qualcomm’s Quick Charge or MediaTek’s Pump Express, are used to reduce the time it takes to charge a device. For example, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.
5.Has an ultra power-saving mode
Vivo S1 (Android 9.0 Pie)
Vivo Y91 (Android 8.0 Oreo)
The ultra power-saving mode, also called low power mode, is an effective way to extend the battery life of the device. Usually, it involves limiting screen brightness and contrast, disabling location services, restricting connectivity, and turning off nonessential apps.
6.has a battery level indicator
Vivo S1
Vivo Y91
An indicator shows you when the device has low battery.

Features

1.supports Wi-Fi 5 (802.11ac)
Vivo S1
Vivo Y91
802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability, and improved power consumption. It provides advantages for gaming and HD video streaming.
2.has NFC
Vivo S1
Vivo Y91
NFC (near-field communication) allows a device to perform simple wireless transactions.
3.Has a fingerprint scanner
Vivo S1
Vivo Y91
The device has a fingerprint scanner which identifies the user.
4.is DLNA-certified
Vivo S1
Vivo Y91
All DLNA-certified products are compatible with one another. When different devices are connected to the same network, data can be transferred easily between them.
5.upload speed

50MBits/s

The upload speed is a measurement of the internet connection bandwidth, representing the maximum data transfer rate at which a device can send information to a server or another device.
6.supports two SIM cards
Vivo S1
Vivo Y91
A dual-SIM mobile phone can work with two SIM cards at the same time.

Price comparison

Vivo S1

Buy used:

$94.99

ProductStorePrice
Vivo S1 AmazonGooplayer for vivo S1 6.53 Inch Mobile P...Gooplayer for vivo S1 6.53 Inch Mobile Phone Octa Core Zero Boundary Full Screen Front 24.80MP Elevating Camera Smartphone (Blue 4GB+128GB)
Amazon logo
$353.16
Vivo S1 AmazonGooplayer for vivo S1 6.53 Inch Mobile P...Gooplayer for vivo S1 6.53 Inch Mobile Phone Octa Core Zero Boundary Full Screen Front 24.80MP Elevating Camera Smartphone (Summer Dream 6GB+256GB)
Amazon logo
$360.69
Vivo S1 aliexpress2019 Original vivo S1 Pro Mobile Phone 6...2019 Original vivo S1 Pro Mobile Phone 6.39" 6GB 256GB Octa Core Front Camera 32MP 3 Rear Cameras Selife 3700mAh Smart phone
aliexpress logo
$399.99

Vivo Y91

Buy used:

$99.99

ProductStorePrice
Vivo Y91 AmazonBLU Vivo XL5-6.3" HD Display Smartphone,...BLU Vivo XL5-6.3" HD Display Smartphone, 64GB+ 3GB RAM- Black
Amazon logo
$109.99
Vivo Y91 AmazonBLU VIVO XI+ - 6.2" Full HD+ Smartphone ...BLU VIVO XI+ - 6.2" Full HD+ Smartphone GSM Unlocked and Verizon Compatible, 128GB+6GB RAM, AI Dual Cameras -Silver
Amazon logo
$249.99
Vivo Y91 AmazonGoogle - Pixel 3a with 64GB Memory Cell ...Google - Pixel 3a with 64GB Memory Cell Phone (Unlocked) - Purple-ish
Amazon logo
$349.99
Vivo Y91 AmazonBLU Vivo XL5-6.3" HD Display Smartphone,...BLU Vivo XL5-6.3" HD Display Smartphone, 64GB+ 3GB RAM- Black (Renewed)
Amazon logo
$99.99
Vivo Y91 walmartVIVO Black Universal Economic 32" to 65"...VIVO Black Universal Economic 32" to 65" LCD Flat Screen TV Table Top Stand | VESA Mount with Glass Base (STAND-TV00H)
walmart logo
$59.99

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