63points
Samsung Galaxy A51
58points
Xiaomi Redmi Note 8
vs
vs
248 facts in comparison
Samsung Galaxy A51 vs Xiaomi Redmi Note 8
Samsung Galaxy A51
Xiaomi Redmi Note 8
Why is Samsung Galaxy A51 better than Xiaomi Redmi Note 8?
- 2GB more RAM memory?
8GBvs6GB - 5.26% faster CPU speed?
4 x 2.3GHz & 4 x 1.7GHzvs4 x 2GHz & 4 x 1.8GHz - 16.67% more megapixels (main camera)?
48MP & 12MP & 5MP & 5MPvs48MP & 8MP & 2MP & 2MP - 2.46x more megapixels (front camera)?
32MPvs13MP - 128GB more internal storage?
256GBvs128GB - Has NFC?
- Has an OLED or AMOLED display?
- 0.8 newer Bluetooth version?
5vs4.2
Why is Xiaomi Redmi Note 8 better than Samsung Galaxy A51?
- Weather-sealed (splashproof)?
- 10% wider aperture at minimum focal length?
f/1.8 & f/2.2 & f/2.4 & f/2.4vsf/2 & f/2.2 & f/2.4 & f/2.2 - Has an IPS screen?
- Has a CMOS sensor?
- 1.26µm larger pixel size (main camera)?
0.8µm & 1.12µm & 1.75µm & 1.75µmvs0.8µm & 1.12µm & 1.12µm & 1.12µm - Has an infrared sensor?
- 9.09% wider aperture at minimum focal length (front camera)?
f/2.0 vsf/2.2 - 2.98GB/s more memory bandwidth?
14.9GB/svs11.92GB/s
Price comparison
Samsung Galaxy A51
Buy used:
$210
| Product | Store | Price | |
|---|---|---|---|
| Samsung Galaxy S20 5G, 128GB, Cosmic Gra...Samsung Galaxy S20 5G, 128GB, Cosmic Gray - Unlocked (Renewed) | $327 | ||
| Samsung Galaxy S8, 5.8" 64GB (Verizon Wi...Samsung Galaxy S8, 5.8" 64GB (Verizon Wireless) - Midnight Black | $370 | ||
| Samsung Galaxy A51 A515F 4GB RAM 64GB RO...Samsung Galaxy A51 A515F 4GB RAM 64GB ROM inch 6.5 4000mAh NFC Android10 | $291 | ||
| 2020 Samsung Galaxy A51 A515F 2SIM Unloc...2020 Samsung Galaxy A51 A515F 2SIM Unlocked Mobile Phone 6.5" 6GB RAM 128GB ROM Octa Core NFC 4Cameras 48MP Android10 Smartphone | $280 | ||
| Unlocked Samsung Galaxy A51 A515F 2SIM M...Unlocked Samsung Galaxy A51 A515F 2SIM Mobile Phone 6.5" 6GB RAM 128GB ROM Octa Core NFC 4Cameras 48MP Android 10 Smartphone | $280 | ||
Xiaomi Redmi Note 8
| Product | Store | Price | |
|---|---|---|---|
| Xiaomi Redmi Note 8 smartphone global ro...Xiaomi Redmi Note 8 smartphone global rom Snapdragon 665 48MP 4000mAh 18W Fast Charge | $151 | ||
| Original Phone Xiaomi Redmi Note 8 Pro S...Original Phone Xiaomi Redmi Note 8 Pro Smartphone,Android Cellphone Global ROM Version Mobil Phone (Random color) | $170 | ||
| Xiaomi Cellphone Redmi Note 8 / Note8 (2...Xiaomi Cellphone Redmi Note 8 / Note8 (2021) Smartphone,with Phone Case - Original Android Phone 4000mAh Baterry Quad Cmaera | $150 | ||
User reviews
Overall Rating
Features
Build quality
8.5/10
33 votes
8.8/10
22 votes
Display quality
9.2/10
33 votes
8.6/10
22 votes
Battery life
7.8/10
33 votes
7.2/10
22 votes
Photography
8.4/10
33 votes
8.5/10
22 votes
Performance
8.1/10
33 votes
8.5/10
22 votes
Design
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.
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.
The width represents the horizontal dimension of the product. We consider a smaller width better because it assures easy maneuverability.
The height represents the vertical dimension of the product. We consider a smaller height better because it assures easy maneuverability.
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
6.waterproof depth rating
∅
Samsung Galaxy A51: Not applicable
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
The waterproof depth rating indicates how well the device is protected against water ingress and water pressure. Devices which can withstand more water pressure are better for swimming or diving.
Volume is the quantity of three-dimensional space enclosed by the product's chassis or, in simpler terms, the space the product occupies.
8.lowest potential operating temperature
Unknown. Help us by suggesting a value. (Samsung Galaxy A51)
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
The minimum temperature at which the device can perform to the optimal level.
9.maximum operating temperature
Unknown. Help us by suggesting a value. (Samsung Galaxy A51)
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
The maximum temperature at which the device can perform to the optimal level.
Display
The bigger the screen size is, the better the user experience.
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.
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.
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.
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.
The frequency at which the screen is refreshed. Higher frequency results in less flickering (less noise) and more natural movement representation in action-intense scenes.
7.brightness
Unknown. Help us by suggesting a value. (Samsung Galaxy A51)
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
A nit is a measurement of the light that a display emits, equal to one candela per square meter. Brighter displays ensure a screen's contents are easy to read, even in sunny conditions.
Damage-resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.
Gorilla Glass is one of the most popular brands of chemically strengthened glass, manufactured by Corning. Several versions have been developed, the newer ones being more durable and providing better damage resistance.
Performance
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.
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.
A newer version of Android generally provides a better user experience. Major Android releases include new features and improvements to performance, as well as important security updates.
AnTuTu is one of the most important benchmarks for Android devices. The score reflects the overall performance of a device by summing up results of individual tests that various parameters, such as RAM speed, CPU performance, 2D & 3D graphics performance.
Wild Life is a cross-platform benchmark developed by 3DMark that tests the graphical performance of a device (using the Vulkan API on Android/Windows and the Metal API on iOS). Source: 3DMark.
Wild Life is a cross-platform benchmark developed by 3DMark that tests the graphical performance of a device (using the Vulkan API on Android/Windows and the Metal API on iOS). The Unlimited version runs off-screen so that factors such as display resolution don’t affect the score. Source: 3DMark.
7.3DMark Wild Life Extreme benchmark
Unknown. Help us by suggesting a value. (Samsung Galaxy A51)
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
Wild Life is a cross-platform benchmark developed by 3DMark that tests the graphical performance of a device (using the Vulkan API on Android/Windows and the Metal API on iOS). The Extreme version is much more graphically-demanding than the standard Wild Life benchmark. Source: 3DMark.
8.Geekbench 5 result (multi)
1177 (Samsung Exynos 9611)
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
Geekbench 5 is a cross-platform benchmark that measures a processor's multi-core performance. (Source: Primate Labs, 2022)
9.Geekbench 5 result (single)
327 (Samsung Exynos 9611)
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
Geekbench 5 is a cross-platform benchmark that measures a processor's single-core performance. (Source: Primate Labs, 2022)
Cameras
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.
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.
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.
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.
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.
A dual-tone flash has LED lights with different color temperatures, delivering a better color balance to photos and videos.
A BSI (backside illuminated) sensor is a camera image sensor which captures better quality images in poor lighting conditions, and offers better overall sharpness and image quality.
When recording movies they stay focussed and sharp.
Phase-detection autofocus is much faster than a contrast detection autofocus, allowing for sharper images.
Operating system
This privacy feature alerts you with a small notification when an app copies data from your clipboard.
This privacy feature allows you to share your approximate location with an app instead of your precise location.
You can enable or disable an app’s access to the camera or microphone on your device. There are also indication icons to show you when an app uses the camera or microphone.
Mail Privacy Protection is a feature built into the default email app that blocks senders from using “tracking pixels” to see when you’ve read an email. It also hides your IP address from senders.
Theme customization allows you to easily change the appearance of the user interface (UI). For example, by changing the system colors or the app icons.
Some apps track your activity even when the app is not in use. This privacy feature allows you to block this tracking, either across all apps or on a per-app basis.
This setting (in the default browser) allows you to block cross-site tracking cookies and data to help protect your privacy.
8.has on-device machine learning
✖Samsung Galaxy A51 (Android 10)
✖Xiaomi Redmi Note 8 (Android 9.0 Pie)
On-device machine learning is used to recognize people, places, and more in the Photos app. The algorithms run on the device, where this sensitive data is then kept. Competing services upload the photos and perform this on their servers, which requires the sharing of personal data.
9.Can play games while they download
✖Samsung Galaxy A51 (Android 10)
✖Xiaomi Redmi Note 8 (Android 9.0 Pie)
This means you don’t have to wait for the entire game to download first, as the later stages of the game download while you are playing.
Battery
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.
It supports a wireless charging standard such as Qi. To charge the device, you simply put it down on a compatible charging pad.
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.
The battery is removable and can be replaced by the user if broken.
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.
An indicator shows you when the device has low battery.
7.Battery life
Unknown. Help us by suggesting a value. (Samsung Galaxy A51)
Unknown. Help us by suggesting a value. (Xiaomi Redmi Note 8)
The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.
The battery can be recharged and used over again.
Audio
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
With a standard mini jack socket, you can use the device with most headphones.
A built-in FM radio tuner allows you to listen to most of the live-broadcasted FM radio stations without using the internet.
More microphones result in better sound quality and enable the device to filter out background noise.
Phones with physical keyboards have dedicated media keys, such as: play, stop, next, previous, volume up/down, etc.
Features
LDAC is a codec developed by Sony for Bluetooth audio. It is capable of a very high bitrate of 990kbps, which provides high resolution audio. It can also automatically adjust to a lower bitrate of 330kbps or 660kbps to increase stability.
aptx Adaptive is an audio codec for Bluetooth devices that is developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps), which means it can adjust the bit rate for different scenarios, such as listening to HD audio or reducing interference from other devices.
aptX HD is an audio codec for Bluetooth devices that is developed by Qualcomm. It supports high quality 24-bit audio (at a bit rate of 576kbps).
4.has 5G support
✖Samsung Galaxy A51 (Samsung Exynos 9611)
✖Xiaomi Redmi Note 8 (Qualcomm Snapdragon 665)
The fifth-generation wireless technology delivers higher speeds and lower latency than the previous, fourth-generation tech.
The download speed is a measurement of the internet connection bandwidth, representing the maximum data transfer rate at which a device can access online content.
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.
The USB Type-C features reversible plug orientation and cable direction.
Newer USB versions are faster and have better power management.
NFC (near-field communication) allows a device to perform simple wireless transactions, such as mobile payments. Note: this feature may not be available in all markets.
Miscellaneous
The global median price is determined by calculating the median value of all the prices available for a product, taking into account all markets.
Price comparison
Samsung Galaxy A51
Buy used:
$210
| Product | Store | Price | |
|---|---|---|---|
| Samsung Galaxy S20 5G, 128GB, Cosmic Gra...Samsung Galaxy S20 5G, 128GB, Cosmic Gray - Unlocked (Renewed) | $327 | ||
| Samsung Galaxy S8, 5.8" 64GB (Verizon Wi...Samsung Galaxy S8, 5.8" 64GB (Verizon Wireless) - Midnight Black | $370 | ||
| Samsung Galaxy A51 A515F 4GB RAM 64GB RO...Samsung Galaxy A51 A515F 4GB RAM 64GB ROM inch 6.5 4000mAh NFC Android10 | $291 | ||
| 2020 Samsung Galaxy A51 A515F 2SIM Unloc...2020 Samsung Galaxy A51 A515F 2SIM Unlocked Mobile Phone 6.5" 6GB RAM 128GB ROM Octa Core NFC 4Cameras 48MP Android10 Smartphone | $280 | ||
| Unlocked Samsung Galaxy A51 A515F 2SIM M...Unlocked Samsung Galaxy A51 A515F 2SIM Mobile Phone 6.5" 6GB RAM 128GB ROM Octa Core NFC 4Cameras 48MP Android 10 Smartphone | $280 | ||
Xiaomi Redmi Note 8
| Product | Store | Price | |
|---|---|---|---|
| Xiaomi Redmi Note 8 smartphone global ro...Xiaomi Redmi Note 8 smartphone global rom Snapdragon 665 48MP 4000mAh 18W Fast Charge | $151 | ||
| Original Phone Xiaomi Redmi Note 8 Pro S...Original Phone Xiaomi Redmi Note 8 Pro Smartphone,Android Cellphone Global ROM Version Mobil Phone (Random color) | $170 | ||
| Xiaomi Cellphone Redmi Note 8 / Note8 (2...Xiaomi Cellphone Redmi Note 8 / Note8 (2021) Smartphone,with Phone Case - Original Android Phone 4000mAh Baterry Quad Cmaera | $150 | ||
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Comments
Fernando David
9 months ago
10 / 10
Increíble celular de gama baja
Fernando David
9 months ago
10 / 10
Pros
Cons
Eurykings
8 months ago
6 / 10
Que hay mas opciones
Eurykings
8 months ago
6 / 10
Pros
Cons
oryane mithra
7 months ago
8 / 10
Je trouve se téléphone très bien pour la part
oryane mithra
7 months ago
8 / 10
Bon téléphone avec un batterie performant au départ, bon design