Samsung Galaxy A31 vs Xiaomi Redmi Note 9S. Comparison!

Hello everyone! Today I’m going to compare the Samsung Galaxy A31 and the Xiaomi Redmi Note 9S smartphones.

So, let’s get started.

Appearance

The Samsung Galaxy A31 has a nice shiny plastic case. Yes, it’s plastic, but the case is excellent and the phone looks quite well. The screen has thin plastic frames rounded at the ends. The bottom of the frame is thicker than the rest.

The smartphone has a nice modern design. There are intersecting lines on the back. There are four color options for the case – it can be white, black, red, or blue. There are plenty colors to choose from!

The surface of the smartphone is shiny, but it gets dirty easily. The spots and small scratches become noticeable very fast. In addition, the case itself is very slippery. A protective case will come in handy.

The Xiaomi Redmi Note 9S is covered with shockproof Corning Gorilla Glass 5 in front and back. The glass body always looks great. The screen has thin plastic frames with rounded edges. There is the protection against dust and splashes. But try not to leave a phone right under the rain drops.

The smartphone has a harmonious design. Its body with rounded edges fits perfectly in the hand. The smartphone can be white, turquoise, or gray color.

The smartphones vary in size. The Galaxy A31 is 159.3 millimeters long, 73.1 millimeters wide and 8.6 millimeters thick. Its weight is 185 grams. The Redmi Note 9S is bigger and heavier. Its length is 165.8 millimeters, its width is 76.7 millimeters and its thickness is 8.8 millimeters. The weight of the smartphone is 209 grams.

The Galaxy A31’s front camera is located in the teardrop-shaped cutout in the middle of the top of the screen. The speaker grill is placed above. The Redmi Note 9S’s front camera is also located in a small hole at the top of the smartphone in the middle of the screen.

Both smartphones have a rear quad camera. The Galaxy A31 has the camera and the LED flash placed in a vertical rectangular block in the upper left corner on the back of the case. The vertical Samsung inscription iisn’t far from the bottom side. The Redmi Note 9S’s rear quad camera is also located in a rectangular block and is located in the upper middle part of the case. There is the dual LED flash located in the camera unit. The Redmi logo is on the back.

The Galaxy A31 has an on-screen fingerprint scanner. Among other sensors there is the accelerometer, gyro sensor, geomagnetic sensor, light sensor, and virtual presence sensor. The Redmi Note 9S has a side fingerprint sensor. It is mounted in the power button and is located on the right edge. This smartphone has a light sensor, proximity, gyroscope, compass, accelerometer, infrared. There is no NFC-module while the Galaxy A31 has one.

The function keys of the smartphones are located identically. There is a volume key and a power button on the right edge of the Galaxy A31. There is a dedicated slot for a microSD memory card with a capacity of up to 512 GB on the left edge. The Redmi Note 9S has a fingerprint sensor combined with the power key on the right edge, the volume key is above. There is also a dedicated microSD card slot.

At the bottom of the smartphones there is an audio output for 3.5 millimeter headphones, a Type-C charger. At the bottom there is a microphone and speaker. At the top there is a second microphone for noise reductio. The Redmi Note 9S also has the IR sensor for controlling home devices.

The memory configuration of the Galaxy A31 is 4 GB, 6 GB of RAM and 64, 128 GB of the in-built memory. The Redmi Note 9S has 4 GB or 6 GB of RAM and 64 GB, 128 GB of the in-built memory.

Screen

The Galaxy A31 has a spacious Super AMOLED screen with wide viewing angles. The diagonal size is 6.4 inches, the resolution is 1080 by 2400 pixels, and the aspect ratio is 20:9, the PPI is 411.

The Redmi Note 9S has a large IPS LCD screen with wide viewing angles. The diagonal size is 6.67 inches, the aspect ratio is 20 to 9, the resolution is 1080 by 2400 pixels, the PPI is 395. The contrast is 1500:1. The maximum brightness is 450 nits. The screen is protected by the Corning Gorilla Glass 5.

Both smartphones have automatic brightness control, a blue filter to protect the eyes, a fashionable black theme, and the option to select a color temperature.

Software

The Galaxy A31 runs on the Android 10.0 with the One UI 2.0 shell. The interface is clear, the menu is easy to navigate. The Redmi Note 9S runs on Android 10.0, with the MIUI 11 shell.

Camera

The rear camera of both smartphones has 4 lenses and the LED module. The Galaxy A31 lenses are placed in a vertical unit, consisting of the main camera with a resolution of 48 megapixels and aperture – f / 2.0, the ultra-wide camera is with 8 megapixels with aperture f / 2.2. The macro module cosists of 5 megapixels with aperture f / 2.4, and the depth sensor of 5 megapixels with aperture of f / 2.4. to create a bokeh effect.

The main camera with a high-resolution matrix makes bright and clear pictures both day and night. The 123 ° ultra-wide angle camera is suitable for shooting landscapes and group portraits. The macro lens captures the smallest details and textures of an object when shooting from a short distance. The depth sensor allows you to create portrait shots with focus on the image object, and blur the background.

The camera takes vivid photographs during the day. Thanks to the night-time technology it takes clear detailed pictures even in the dark.

The resolution of the front camera of the Galaxy A31 is 20 megapixels, the aperture is f / 2.2. The camera creates clear selfies with blurred background. The color reproduction of images is natural.

The smartphone shoots video with a maximum resolution of Full HD with a frequency of 30 fps.

The quad camera of the Redmi Note 9S consists of the main camera with a resolution of 48 megapixels and aperture of f / 1.8. The wide-angle camera has 8 megapixels with the aperture of f / 2.2. The macro module is 5 megapixels with aperture f / 2.4. The depth sensor of 2 megapixels has the aperture of f / 2.4. The LED flash is located under the lenses.

The camera takes clear and well-balanced photos with excellent detail even in low light thanks to the smartphone’s special night mode.

The phone has electronic stabilization. It can record 4K video at 30 frames per second.

The resolution of the front camera of the Redmi Note 9S is 16 megapixels with aperture f / 2.5. The camera takes superb selfies at 120 frames per second. It also supports the portrait mode with adjustable background blur.

Performance

The Galaxy A31 has the fast MediaTek Helio P65 8-core processor.

The gamers might like the smartphone. Its performance is maximized using the Game Booster app. The program interface allows you to control the gameplay. The application provides smooth graphics and more natural movements of objects in games. All player’s actions are analyzed by the artificial intelligence. The battery consumption is optimized and game loading is accelerated.

The Redmi Note 9S has the 8nm high-performance 8-core Snapdragon 720G processor from Qualcomm. The graphics accelerator is the Adreno 618.

The performance of the smartphone is enough to play games for 13 hours.

The memory configuration of the Galaxy A31 is 4 GB, 6 GB of RAM and 64, 128 GB of ROM. The Redmi Note 9S has 4 GB or 6 GB of RAM and 64 GB, 128 GB of ROM.

Network

Both smartphones follow the necessary communication standards. There is support for 2.4 GHz, 5 GHz. They both use Bluetooth version 5.0 for data transfer. There is the GPS. The Galaxy A31 has the NFC module.

Battery

The battery capacity of the Galaxy A31 is 5000 mAh. There is a quick charge function (15 W). The battery capacity of the Redmi Note 9S is slightly larger – it is 5020 mAh. There is the fast 18 W charge.

Reviews

What are the reviews on these smartphones on the Internet? I have analyzed some of them and I am ready to show you the results. Let’s start with the negatives.

Negatives

The Galaxy A31

  1. The case easily gets scratches and become dirty.
  2. There is no infrared port.
  3. The fingerprint scanner works slowly.

The Redmi Note 9s

  1. The glass panel almost does not get scratched, but it gets dirty quickly.
  2. The frame around the display is plastic.
  3. There are nuances with image stabilization.

Positives

The Galaxy A31

  1. It has a nice screen.
  2. The cameras are good.
  3. It charges fast.
  4. There is the NFC module.

The Redmi Note 9s

  1. The IPS display is high-quality with high pixel density.
  2. It has a camera with many functions.
  3. The fingerprint sensor is integrated into the power button.
  4. It charges fast because of the powerful complete power adapter.

So, today we were comparing two smartphones – the Samsung Galaxy A31 and the Xiaomi Redmi Note 9S. Both smartphones look decent. Both have several color options for the case, a powerful battery, and fast charging function. The Galaxy A31 is at 15 watts, and the Redmi Note 9S is at 18 watts.

The Galaxy A31 has the NFC module and an on-screen fingerprint scanner. The Redmi Note 9S has a side fingerprint scanner and an infrared port to control the home appliances with your phone.

Both smartphones have a slot for two SIM cards, and a dedicated slot for a memory card.

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