Samsung Galaxy S21 review: specs and price
Samsung Galaxy S21
Why is Samsung Galaxy S21 better than the average?
- Battery power?
4000mAhvs3489.55mAh - Pixel density?
421ppivs347.89ppi - RAM?
8GBvs4.1GB - Resolution?
1080 x 2400pxvs1.79MP - CPU speed?
1 x 2.9GHz & 3 x 2.8GHz & 4 x 2.2GHzvs11.9GHz - Megapixels (main camera)?
64MP & 12MP & 12MPvs28.96MP - Screen size?
6.2"vs5.74" - Internal storage?
256GBvs74.83GB
Price comparison
| Product | Store | Price | |
|---|---|---|---|
| Samsung Galaxy S20 Ultra, 128GB, Cosmic ...Samsung Galaxy S20 Ultra, 128GB, Cosmic Gray - Fully Unlocked (Renewed) | $649 | ||
| Samsung Galaxy S20 5G, 128GB, Cosmic Gra...Samsung Galaxy S20 5G, 128GB, Cosmic Gray - Unlocked (Renewed) | $445 | ||
| Samsung Galaxy S21 5G G991U G991U1 Cell ...Samsung Galaxy S21 5G G991U G991U1 Cell Phone 8GB/128GB NFC Triple Rear Camera Octa Core Snapdragon 888 Original Unlocked | $673 | ||
User reviews
Overall Rating
Features
Build quality
9.4/10
5 votes
Display quality
9.8/10
5 votes
Battery life
8.8/10
5 votes
Photography
9.6/10
5 votes
Performance
9.8/10
5 votes
Design
1.is dustproof and water-resistant
✔Samsung Galaxy S21
The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
2.weather-sealed (splashproof)
✔Samsung Galaxy S21
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
3.weight
171g
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.
4.thickness
7.9mm
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.
5.width
71.2mm
The width represents the horizontal dimension of the product. We consider a smaller width better because it assures easy maneuverability.
6.height
151.7mm
The height represents the vertical dimension of the product. We consider a smaller height better because it assures easy maneuverability.
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.
8.volume
85.33cm³
Volume is the quantity of three-dimensional space enclosed by the product's chassis or, in simpler terms, the space the product occupies.
The first number of the IP rating refers to protection against dust, while the second number refers to protection against liquid. E.g. a first number of 6 denotes that it is completely dustproof, and a second number of 7 denotes that the device can withstand full immersion in water.
Display
1.pixel density
421ppi
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
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
6.2"
The bigger the screen size is, the better the user experience.
4.has branded damage-resistant glass
✔Samsung Galaxy S21
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 OLED or AMOLED display
✔Samsung Galaxy S21
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.
6.has an IPS screen
✖Samsung Galaxy S21
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.
7.Gorilla Glass version
Unknown. Help us by suggesting a value.
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.
8.has a touch screen
✔Samsung Galaxy S21
You can operate the device easily, by pressing the screen with your fingers.
9.refresh rate
120Hz
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.
Performance
1.RAM
8GB
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.
2.CPU speed
1 x 2.9GHz & 3 x 2.8GHz & 4 x 2.2GHz (Samsung Exynos 2100)
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.
3.has an external memory slot
✖Samsung Galaxy S21
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
256GB
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 S21 (Samsung Exynos 2100)
The system on a chip (SoC) has an integrated LTE cellular chip. LTE is capable of downloading at faster speeds than older, 3G technology.
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.
7.GPU clock speed
Unknown. Help us by suggesting a value.
The graphics processing unit (GPU) has a higher clock speed.
8.RAM speed
3200MHz (Samsung Exynos 2100)
It can support faster memory, which will give quicker system performance.
9.Supports 64-bit
✔Samsung Galaxy S21 (Samsung Exynos 2100)
A 32-bit operating system can only support up to 4GB of RAM. 64-bit allows more than 4GB, giving increased performance. It also allows you to run 64-bit apps.
Cameras
1.megapixels (main camera)
64MP & 12MP & 12MP
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.
3.has built-in optical image stabilization
✔Samsung Galaxy S21
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)
3240 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)
Unknown. Help us by suggesting a value.
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 S21
A dual-tone flash has LED lights with different color temperatures, delivering a better color balance to photos and videos.
7.has a BSI sensor
✔Samsung Galaxy S21
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.
8.has continuous autofocus when recording movies
✔Samsung Galaxy S21
When recording movies they stay focussed and sharp.
9.Has phase-detection autofocus for photos
✔Samsung Galaxy S21
Phase-detection autofocus is much faster than a contrast detection autofocus, allowing for sharper images.
Audio
1.has stereo speakers
✔Samsung Galaxy S21
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 S21
With a standard mini jack socket, you can use the device with most headphones.
3.Has a radio
✖Samsung Galaxy S21
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.
5.Has dedicated media keys
✖Samsung Galaxy S21
Phones with physical keyboards have dedicated media keys, such as: play, stop, next, previous, volume up/down, etc.
Battery
1.battery power
4000mAh
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 S21
It supports a wireless charging standard such as Qi. To charge the device, you simply put it down on a compatible charging pad.
3.Supports fast charging
✔Samsung Galaxy S21
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.
4.has a removable battery
✖Samsung Galaxy S21
The battery is removable and can be replaced by the user if broken.
5.Has an ultra power-saving mode
✔Samsung Galaxy S21 (Android 11)
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 S21
An indicator shows you when the device has low battery.
7.Battery life
Unknown. Help us by suggesting a value.
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.
8.has a rechargeable battery
✔Samsung Galaxy S21
The battery can be recharged and used over again.
9.has reverse wireless charging
✔Samsung Galaxy S21
The device can be used as a wireless charging station to power other gadgets.
Features
1.download speed
3000MBits/s (Samsung Exynos 2100)
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.
2.has NFC
✔Samsung Galaxy S21
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.
3.supports Wi-Fi 5 (802.11ac)
✔Samsung Galaxy S21
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.
4.Has a fingerprint scanner
✔Samsung Galaxy S21
The device has a fingerprint scanner which identifies the user.
5.is DLNA-certified
✖Samsung Galaxy S21
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.
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.
7.supports two physical SIM cards
✔Samsung Galaxy S21
A dual-SIM mobile phone can work with two SIM cards at the same time.
8.has 5G support
✔Samsung Galaxy S21
The fifth-generation wireless technology delivers higher speeds and lower latency than the previous, fourth-generation tech.
9.upload speed
422MBits/s (Samsung Exynos 2100)
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.
Price comparison
| Product | Store | Price | |
|---|---|---|---|
| Samsung Galaxy S20 Ultra, 128GB, Cosmic ...Samsung Galaxy S20 Ultra, 128GB, Cosmic Gray - Fully Unlocked (Renewed) | $649 | ||
| Samsung Galaxy S20 5G, 128GB, Cosmic Gra...Samsung Galaxy S20 5G, 128GB, Cosmic Gray - Unlocked (Renewed) | $445 | ||
| Samsung Galaxy S21 5G G991U G991U1 Cell ...Samsung Galaxy S21 5G G991U G991U1 Cell Phone 8GB/128GB NFC Triple Rear Camera Octa Core Snapdragon 888 Original Unlocked | $673 | ||
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Comments
Fabio
2 months ago
10 / 10
Não justifica pagar 3x por um iPhone,se é inferior
Fabio
2 months ago
10 / 10
Não justifica pagar 3x mais por um iPhone12, se tecnicamente é inferior ao GalaxyS21. A não ser para mostrar um padrão social. O marketing da Apple é muito forte, se transforma em "desejo", mas tecnicamente os números mostram que o S21 é um excelente aparelho, com câmeras muito superiores, bateria e processadores superiores e na medida certa. São 2 aparelhos muito bons. Quer comprar o melhor, use a razão e compre o GalaxyS21. Quer mostrar um "padrão social", use a emoção, gaste 3x mais e compre um iPhone.
Саид
3 months ago
10 / 10
Просто пушка
Саид
3 months ago
10 / 10
Isaac
3 months ago
10 / 10
un celular super completo.
Isaac
3 months ago
10 / 10