58points

Samsung Galaxy A31

58points

Xiaomi Redmi Note 9S

vs
vs

138 facts in comparison

Samsung Galaxy A31 vs Xiaomi Redmi Note 9S

Samsung Galaxy A31
Xiaomi Redmi Note 9S

Why is Samsung Galaxy A31 better than Xiaomi Redmi Note 9S?

  • 4.05% higher pixel density
    ?

    411ppivs395ppi
  • 1.95% faster CPU speed
    ?

    2 x 2GHz & 6 x 1.95GHzvs2 x 2.3 & 6 x 1.8GHz
  • 4.76% more megapixels (main camera)
    ?

    48MP & 8MP & 5MP & 5MPvs48 & 8 & 5 & 2MP
  • 25% more megapixels (front camera)
    ?

    20MPvs16MP
  • Has NFC
    ?
  • 24g lighter
    ?

    185gvs209g
  • 0.2mm thinner
    ?

    8.6mmvs8.8mm
  • Has an OLED or AMOLED display
    ?

Why is Xiaomi Redmi Note 9S better than Samsung Galaxy A31?

  • 0.4% more battery power
    ?

    5020mAhvs5000mAh
  • 4.22% bigger screen size
    ?

    6.67"vs6.4"
  • Has branded damage-resistant glass
    ?
  • Weather-sealed (splashproof)
    ?
  • 2x better video recording quality (main camera)
    ?

    2160 x 30fpsvs1080 x 30fps
  • 10% wider aperture at minimum focal length
    ?

    f/1.8 & f/2.2 & f/2.4 & f/2.4vs2 & 2.2 & 2.4 & 2.4f
  • Has an IPS screen
    ?
  • Supports slow-motion video recording
    ?

Price comparison

Samsung Galaxy A31

ProductStorePrice
Samsung Galaxy A31 AmazonSamsung Galaxy A31-128GB / 4GB - A315G/D...Samsung Galaxy A31-128GB / 4GB - A315G/DSL Unlocked Dual Sim Phone w/Quad Camera 48MP+8MP+5MP+5MP GSM International Version (Prism Crush Black)
Amazon logo
$229.00
Samsung Galaxy A31 AmazonSamsung Galaxy A31 64GB / 4GB - A315G/DS...Samsung Galaxy A31 64GB / 4GB - A315G/DSL Unlocked Dual Sim Phone w/Quad Camera 48MP+8MP+5MP+5MP GSM International Version (Prism Crush White)
Amazon logo
$217.99
Samsung Galaxy A31 AmazonSamsung Galaxy A51 (128GB, 4GB) 6.5", 48...Samsung Galaxy A51 (128GB, 4GB) 6.5", 48MP Quad Camera, Dual SIM GSM Unlocked A515F/DS- Global 4G LTE International Model - Prism Crush Blue
Amazon logo
$267.99
Samsung Galaxy A31 AmazonSamsung Galaxy A71 (SM-A715F/DS) Dual SI...Samsung Galaxy A71 (SM-A715F/DS) Dual SIM 4G LTE 128GB, GSM Factory Unlocked - International Version - No Warranty - Blue
Amazon logo
$347.99
Samsung Galaxy A31 aliexpressGlobal Version Samsung Galaxy A31 A315G/...Global Version Samsung Galaxy A31 A315G/DS Mobile Phone 6GB RAM 128GB ROM Octa Core 6.4"1080x2400 5000mAh 4Camera NFC Android 10
aliexpress logo
$236.54

Xiaomi Redmi Note 9S

ProductStorePrice
Xiaomi Redmi Note 9S AmazonXiaomi Redmi Note 9S 6.67" 48MP Internat...Xiaomi Redmi Note 9S 6.67" 48MP International Global Version (Aurora Blue, 6GB/128GB)
Amazon logo
$224.33
Xiaomi Redmi Note 9S AmazonXiaomi Redmi Note 9 Pro 128GB + 6GB RAM,...Xiaomi Redmi Note 9 Pro 128GB + 6GB RAM, 6.67" FHD+ DotDisplay, 64MP AI Quad Camera, Qualcomm Snapdragon 720G LTE Factory Unlocked Smartphone - International Version (Tropical Green)
Amazon logo
$264.00
Xiaomi Redmi Note 9S AmazonSamsung Galaxy Note 10 Lite N770F 128GB ...Samsung Galaxy Note 10 Lite N770F 128GB Dual-SIM GSM Unlocked Phone (International Variant/US Compatible LTE) - Aura Black
Amazon logo
$435.01
Xiaomi Redmi Note 9S AmazonXiaomi Redmi Note 9 Pro 64GB + 6GB RAM, ...Xiaomi Redmi Note 9 Pro 64GB + 6GB RAM, 6.67" FHD+ DotDisplay, 64MP AI Quad Camera, Qualcomm Snapdragon 720G LTE Factory Unlocked Smartphone - International Version (Glacier White)
Amazon logo
$232.00
Xiaomi Redmi Note 9S aliexpressGlobal Version Xiaomi Redmi Note 9S 4GB ...Global Version Xiaomi Redmi Note 9S 4GB 64GB/ 6GB 128GB Smartphone Snapdragon 720G 48MP Camera 6.67" 5020mAh 18W Charge
aliexpress logo
$201.16

Design

1.weather-sealed (splashproof)
Samsung Galaxy A31
Xiaomi Redmi Note 9S
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
2.weight

185g

209g

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

8.6mm

8.8mm

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

73.1mm

76.7mm

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

159.3mm

165.8mm

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

100.15cm³

111.91cm³

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

411ppi

395ppi

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 2400px

1080 x 2400px

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

6.4"

6.67"

The bigger the screen size is, the better the user experience.
4.has branded damage-resistant glass
Samsung Galaxy A31
Xiaomi Redmi Note 9S
Damage-resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.
5.has an IPS screen
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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.
6.Has an OLED or AMOLED display
Samsung Galaxy A31
Xiaomi Redmi Note 9S
OLED (Organic Light-Emitting Diode) displays are formed of organic materials that emit light. They have higher contrast ratios and wider viewing angles compared to LCDs. AMOLED and POLED are types of OLED displays.

Performance

1.CPU speed

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

2 x 2.3GHz & 6 x 1.8GHz (Qualcomm Snapdragon 720G)

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

6GB

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
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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

128GB

The internal storage 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
Samsung Galaxy A31 (MediaTek Helio P65)
Xiaomi Redmi Note 9S (Qualcomm Snapdragon 720G)
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)

48MP & 8MP & 5MP & 5MP

48MP & 8MP & 5MP & 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)

20MP

16MP

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
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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)

1080 x 30fps

2160 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/2 & f/2.2 & f/2.4 & f/2.4

f/1.8 & f/2.2 & f/2.4 & f/2.4

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
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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
Samsung Galaxy A31
Xiaomi Redmi Note 9S
With a standard mini jack socket, you can use the device with most headphones.
3.Has a radio
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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.

Battery

1.battery power

5000mAh

5020mAh

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 wireless charging
Samsung Galaxy A31
Xiaomi Redmi Note 9S
The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.
3.has a removable battery
Samsung Galaxy A31
Xiaomi Redmi Note 9S
The battery is removable and can be replaced by the user if broken.
4.Supports fast charging
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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
Samsung Galaxy A31 (Android 10)
Xiaomi Redmi Note 9S (Android 10)
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
Samsung Galaxy A31
Xiaomi Redmi Note 9S
An indicator shows you when the device has low battery.

Features

1.supports Wi-Fi 5 (802.11ac)
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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
Samsung Galaxy A31
Xiaomi Redmi Note 9S
NFC (near-field communication) allows a device to perform simple wireless transactions.
3.Has a fingerprint scanner
Samsung Galaxy A31
Xiaomi Redmi Note 9S
The device has a fingerprint scanner which identifies the user.
4.is DLNA-certified
Samsung Galaxy A31
Xiaomi Redmi Note 9S
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.Bluetooth version

5

5

Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.
6.supports two SIM cards
Samsung Galaxy A31
Xiaomi Redmi Note 9S
A dual-SIM mobile phone can work with two SIM cards at the same time.

Price comparison

Samsung Galaxy A31

ProductStorePrice
Samsung Galaxy A31 AmazonSamsung Galaxy A31-128GB / 4GB - A315G/D...Samsung Galaxy A31-128GB / 4GB - A315G/DSL Unlocked Dual Sim Phone w/Quad Camera 48MP+8MP+5MP+5MP GSM International Version (Prism Crush Black)
Amazon logo
$229.00
Samsung Galaxy A31 AmazonSamsung Galaxy A31 64GB / 4GB - A315G/DS...Samsung Galaxy A31 64GB / 4GB - A315G/DSL Unlocked Dual Sim Phone w/Quad Camera 48MP+8MP+5MP+5MP GSM International Version (Prism Crush White)
Amazon logo
$217.99
Samsung Galaxy A31 AmazonSamsung Galaxy A51 (128GB, 4GB) 6.5", 48...Samsung Galaxy A51 (128GB, 4GB) 6.5", 48MP Quad Camera, Dual SIM GSM Unlocked A515F/DS- Global 4G LTE International Model - Prism Crush Blue
Amazon logo
$267.99
Samsung Galaxy A31 AmazonSamsung Galaxy A71 (SM-A715F/DS) Dual SI...Samsung Galaxy A71 (SM-A715F/DS) Dual SIM 4G LTE 128GB, GSM Factory Unlocked - International Version - No Warranty - Blue
Amazon logo
$347.99
Samsung Galaxy A31 aliexpressGlobal Version Samsung Galaxy A31 A315G/...Global Version Samsung Galaxy A31 A315G/DS Mobile Phone 6GB RAM 128GB ROM Octa Core 6.4"1080x2400 5000mAh 4Camera NFC Android 10
aliexpress logo
$236.54

Xiaomi Redmi Note 9S

ProductStorePrice
Xiaomi Redmi Note 9S AmazonXiaomi Redmi Note 9S 6.67" 48MP Internat...Xiaomi Redmi Note 9S 6.67" 48MP International Global Version (Aurora Blue, 6GB/128GB)
Amazon logo
$224.33
Xiaomi Redmi Note 9S AmazonXiaomi Redmi Note 9 Pro 128GB + 6GB RAM,...Xiaomi Redmi Note 9 Pro 128GB + 6GB RAM, 6.67" FHD+ DotDisplay, 64MP AI Quad Camera, Qualcomm Snapdragon 720G LTE Factory Unlocked Smartphone - International Version (Tropical Green)
Amazon logo
$264.00
Xiaomi Redmi Note 9S AmazonSamsung Galaxy Note 10 Lite N770F 128GB ...Samsung Galaxy Note 10 Lite N770F 128GB Dual-SIM GSM Unlocked Phone (International Variant/US Compatible LTE) - Aura Black
Amazon logo
$435.01
Xiaomi Redmi Note 9S AmazonXiaomi Redmi Note 9 Pro 64GB + 6GB RAM, ...Xiaomi Redmi Note 9 Pro 64GB + 6GB RAM, 6.67" FHD+ DotDisplay, 64MP AI Quad Camera, Qualcomm Snapdragon 720G LTE Factory Unlocked Smartphone - International Version (Glacier White)
Amazon logo
$232.00
Xiaomi Redmi Note 9S aliexpressGlobal Version Xiaomi Redmi Note 9S 4GB ...Global Version Xiaomi Redmi Note 9S 4GB 64GB/ 6GB 128GB Smartphone Snapdragon 720G 48MP Camera 6.67" 5020mAh 18W Charge
aliexpress logo
$201.16

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