Samsung Galaxy S21

Screen Size: 6.2 inches

Dimensions: 151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)

Buy: RF Safe® Samsung Galaxy S21 QuantaCase™ EMF Anti-Radiation Phone Case

Samsung Galaxy S21 SAR Level Summary:

The cellular transmission SAR values for the Samsung Galaxy S21 (FCC ID A3LSMG991U) are 0.74 W/kg at the head and 1.08 W/kg when worn on the body. The hotspot/Airplay SAR level is 1.11 W/kg. Simultaneous transmission SAR values (cellular + Wi-Fi) include: 1.45 W/kg at the head, 1.54 W/kg on the body, and 1.58 W/kg when used as a hotspot.

SAR Ranking

Test	Value	Rank	% of Limit
Head (Cellular)	0.74 W/kg	Check Rank	46.25%
Body (Cellular)	1.08 W/kg	Check Rank	67.50%
Hotspot (Cellular)	1.11 W/kg	Check Rank	69.38%
Head (WiFi+Cell)	1.45 W/kg	Check Rank	90.63%
Body (WiFi+Cell)	1.54 W/kg	Check Rank	96.25%
Hotspot (WiFi+Cell)	1.58 W/kg	Check Rank	98.75%

Specifications

ℹ️ General

ℹ️ Phone: Samsung Galaxy S21
ℹ️ Technology: GSM / CDMA / HSPA / EVDO / LTE / 5G
ℹ️ Announced: 2021-01-14 22:28:09
ℹ️ Status: Available. Released 2021, January 29
ℹ️ Price: $ 473.00 / € 702.88 / £ 559.90 / ₹ 59,879
ℹ️ Model Names: SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910
ℹ️ General Review:

📱 Display

📱 Type: Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
📱 Size: 6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
📱 Resolution: 1080 x 2400 pixels, 20:9 ratio (~421 ppi density)
📱 Protection: Corning Gorilla Glass Victus
📱 Features: Corning Gorilla Glass Victus Always-on display
📱 Display Test: Contrast ratio: Infinite (nominal)
📱 Display Review:
Introduction:
Today, we’ll be reviewing a set of cutting-edge specs on the Samsung Galaxy S21 that are sure to enhance your overall user experience. From a stunning display to top-of-the-line camera features, this phone has it all!
Display: ...
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Introduction:
Today, we’ll be reviewing a set of cutting-edge specs on the Samsung Galaxy S21 that are sure to enhance your overall user experience. From a stunning display to top-of-the-line camera features, this phone has it all!
Display:
The Samsung Galaxy S21 boasts a Dynamic AMOLED 2X display with a 120Hz refresh rate, HDR10+, and 1300 nits of brightness at its peak. This means that the screen on this phone is incredibly smooth and fast, with exceptional color accuracy and contrast. Compared to older models, this display is a significant upgrade, providing users with a much more immersive visual experience.
Notable feature differences include Corning Gorilla Glass Victus protection and an always-on display that allows users to keep track of notifications and other important information without having to wake up their phone.
As a pitchman, I must say that this display technology is unmatched in the industry, and the protection of Gorilla Glass Victus is a game-changer. You won’t have to worry about scratches and damage to your screen anymore. And with the always-on display, you’ll never miss a beat.
Size and Resolution:
Measuring in at 6.2 inches, the Samsung Galaxy S21 boasts an impressive screen-to-body ratio of 87.2%. The resolution is also top-notch, with 1080 x 2400 pixels and a 20:9 ratio, providing a pixel density of approximately 421 ppi.
Compared to older models, this phone’s size and resolution are up there with the best of them. The screen is big enough to provide an immersive experience but still small enough to fit comfortably in your pocket.
Features:
In addition to the impressive display technology, the Samsung Galaxy S21 has other features that make it stand out from the crowd. The always-on display is one of these features, allowing users to keep their phone on without worrying about battery life. Other notable features include Corning Gorilla Glass Victus protection and a contrast ratio of infinite (nominal).
Overall Impressions:
As a pitchman, I must say that I am thoroughly impressed with the specs on the Samsung Galaxy S21. From the stunning display to the top-of-the-line camera features, this phone has it all. If you’re looking for a phone that is guaranteed to enhance your user experience, you can’t go wrong with the Samsung Galaxy S21.
I encourage you to continue learning about more specs for this phone, as there are many other features that make it a top contender in the market. And if you’re considering purchasing a new cell phone, I urge you to consider my review and go for the Samsung Galaxy S21. With its impressive specs and value, you won’t be disappointed.
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📷 Camera

📷 Main Camera: Triple Camera: 12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8m, Dual Pixel PDAF, OIS
64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8m, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
12 MP, f/2.2, 13mm, 120 (ultrawide), 1/2.55" 1.4m, Super Steady video
📷 Main Features: LED flash, auto-HDR, panorama
📷 Video: 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
📷 Selfie Camera: Single Camera: 10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22m, Dual Pixel PDAF
📷 Selfie Camera Features: Dual video call, Auto-HDR
📷 Selfie Camera Video: 4K@30/60fps, 1080p@30fps
📷 Camera Review:
Introduction:
The Samsung Galaxy S21 boasts impressive specs for its camera, promising to enhance user experience with stunning photographs and videos.
Camera:
The main camera of the Samsung Galaxy S21 features a Triple Camera system, with 1...
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Introduction:
The Samsung Galaxy S21 boasts impressive specs for its camera, promising to enhance user experience with stunning photographs and videos.
Camera:
The main camera of the Samsung Galaxy S21 features a Triple Camera system, with 12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8m, Dual Pixel PDAF, OIS, 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8m, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom, and 12 MP, f/2.2, 13mm, 120 (ultrawide), 1/2.55" 1.4m, Super Steady video.
This camera is capable of capturing high-quality photographs and videos, with the resolution and lens focus type ensuring stunning results. The Triple Camera system means users have a range of options for their photography needs, including optical and hybrid zoom, and ultrawide shots.
Main Features:
The camera's LED flash, auto-HDR, and panorama features add to the versatility of the camera, allowing users to capture stunning images in any lighting condition.
Video:
The Samsung Galaxy S21's camera is capable of recording 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS video. This allows for high-quality video recording in a variety of settings, with features such as HDR10+ and gyro-EIS ensuring smooth, stable footage.
Selfie Camera:
The selfie camera of the Samsung Galaxy S21 features a single camera with 10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22m, Dual Pixel PDAF. This ensures high-quality selfies, with the wide lens focus allowing for group photos as well.
Selfie Camera Features:
The Dual video call and Auto-HDR features of the selfie camera add to its versatility, allowing for clear video calls and stunning selfies in any lighting condition.
Selfie Camera Video:
The selfie camera is also capable of recording high-quality video, with 4K@30/60fps and 1080p@30fps options available.
Conclusion:
Overall, the camera specs of the Samsung Galaxy S21 are truly impressive, promising stunning photography and video recording capabilities. The range of features, including the Triple Camera system and selfie camera options, make this phone a must-have for anyone looking for a high-quality camera in their phone. Consider this review when deciding whether to purchase the Samsung Galaxy S21, as its camera capabilities will not disappoint.
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🔋 Battery

🔋 Type: Li-Ion 4000 mAh, non-removable
🔋 Battery Test: Endurance rating 93h
🔋 Charging: Fast charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Reverse wireless charging 4.5W
🔋 Battery Review:
Samsung Galaxy S21 Battery Review
The Samsung Galaxy S21 comes with a Li-Ion 4000 mAh non-removable battery. In this review, we will discuss the importance of this feature and how it compares to older models.
Battery Type
Cell phones run on ...
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Samsung Galaxy S21 Battery Review
The Samsung Galaxy S21 comes with a Li-Ion 4000 mAh non-removable battery. In this review, we will discuss the importance of this feature and how it compares to older models.
Battery Type
Cell phones run on various kinds of batteries depending on the manufacturer, phone size or shape and features. There are basically four types of cell phone batteries: Lithium Polymer, Lithium Ion, Nickel Metal Hydride and Nickel Cadmium. The Samsung Galaxy S21 uses a Lithium Ion battery which is known for its high energy density, low self-discharge and low maintenance.
Battery Test
The Samsung Galaxy S21 boasts an endurance rating of 93h. The battery capacity represents the maximum amount of energy that can be extracted from the battery under certain conditions. In this case, the S21 offers a longer battery life, making sure users do not have to worry about their phone dying in the middle of the day.
Charging
The Samsung Galaxy S21 offers Fast charging 25W, USB Power Delivery 3.0, Fast Qi/PMA wireless charging 15W and Reverse wireless charging 4.5W. This means that the phone can charge quickly, and users do not have to worry about waiting for hours to get a full charge. Additionally, with the fast Qi/PMA wireless charging, users can charge their phone without any wires.
Conclusion
The Samsung Galaxy S21 battery is a standout feature of the phone. With a long battery life and fast charging capabilities, users can be sure they will not have to worry about their phone dying in the middle of the day. We would highly recommend this phone to anyone who values a long-lasting battery and fast charging capabilities.
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⚙️ Hardware

⚙️ Operating System: Android 11, One UI 3.1
⚙️ Chipset: Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
⚙️ CPU: Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680) - USA/China
⚙️ GPU: Mali-G78 MP14 - InternationalAdreno 660 - USA/China
⚙️ Performance: AnTuTu: 584055 (v8)
GeekBench: 3238 (v5.1)
GFXBench: 60fps (ES 3.1 onscreen)
⚙️ Internal Storage: 128GB 8GB RAM, 256GB 8GB RAM
⚙️ Card Slot: No
⚙️ Sensors: Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
⚙️ Hardware Review:
Introduction
In this review, we will be taking a closer look at the hardware specs of the Samsung Galaxy S21. These features are designed to enhance user experience and provide a more powerful and efficient smartphone.
Operating System
The S...
Continue reading
Introduction
In this review, we will be taking a closer look at the hardware specs of the Samsung Galaxy S21. These features are designed to enhance user experience and provide a more powerful and efficient smartphone.
Operating System
The Samsung Galaxy S21 runs on the latest Android 11 operating system, which is paired with Samsung's One UI 3.1. This provides a streamlined and user-friendly interface, along with improved security features and faster performance compared to previous models.
Chipset
The Samsung Galaxy S21 comes equipped with two different chipsets depending on the location: the Exynos 2100 (5 nm) for international models, and the Qualcomm SM8350 Snapdragon 888 5G (5 nm) for USA/China models. These chipsets are designed to perform a wide range of functions, and provide faster and more efficient processing power compared to previous models.
CPU
The Samsung Galaxy S21 features an octa-core CPU, with 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 for international models, and 1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 for USA/China models. This provides faster and more efficient processing power, allowing for smoother multitasking and faster app loading times.
GPU
The Samsung Galaxy S21 comes with either the Mali-G78 MP14 for international models or the Adreno 660 for USA/China models. These GPUs provide improved graphics processing capabilities, allowing for smoother and more detailed visuals in games and other applications.
Performance
The Samsung Galaxy S21 boasts impressive performance specs, with an AnTuTu score of 584055 (v8), GeekBench score of 3238 (v5.1), and GFXBench score of 60fps (ES 3.1 onscreen). These scores indicate that the Samsung Galaxy S21 is one of the most powerful smartphones on the market, capable of handling even the most demanding apps and games with ease.
Internal Storage
The Samsung Galaxy S21 comes with either 128GB or 256GB of internal storage and 8GB of RAM. This provides ample space for storing apps, photos, videos, and other files, along with fast and efficient multitasking capabilities.
Card Slot
Unfortunately, the Samsung Galaxy S21 does not feature a memory card slot, meaning that users are unable to expand the device's storage capacity beyond what is provided out of the box.
Sensors
The Samsung Galaxy S21 is equipped with a range of sensors, including a fingerprint scanner located under the display, an ultrasonic scanner, accelerometer, gyro, proximity, compass, and barometer. These sensors provide accurate and reliable performance, allowing for a wide range of functions such as biometric security and location tracking.
Conclusion
The Samsung Galaxy S21 features an impressive range of hardware specs that are designed to provide faster, more efficient, and more powerful performance compared to previous models. While the lack of a memory card slot may be a downside for some users, the ample internal storage and high-quality sensors more than make up for it. Overall, the Samsung Galaxy S21 is an excellent choice for those seeking a top-of-the-line smartphone.
If you are considering purchasing a new cell phone, be sure to take these specs into account, as they will greatly impact your overall user experience.
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🛜 Connectivity

🛜 Wi-fi: Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
🛜 Bluetooth: 5.0, A2DP, LE
🛜 USB: USB Type-C 3.2, USB On-The-Go
🛜 GPS: Yes, with A-GPS, GLONASS, BDS, GALILEO
🛜 NFC: Yes
🛜 Radio: FM radio (Snapdragon model only; market/operator dependent)
🛜 Connectivity Review:
Connectivity
The Samsung Galaxy S21 boasts impressive connectivity features that allow it to easily connect to various networks and devices.
Wi-Fi
Wi-Fi is a popular wireless networking technology that enables the phone to connect to high-sp...
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Connectivity
The Samsung Galaxy S21 boasts impressive connectivity features that allow it to easily connect to various networks and devices.
Wi-Fi
Wi-Fi is a popular wireless networking technology that enables the phone to connect to high-speed internet without the need for cords or cables. The Galaxy S21 supports Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, and hotspot, which means users can enjoy fast and stable internet connections wherever they go.
Bluetooth
Bluetooth technology allows the phone to exchange data and connect to other devices over short distances without wires. The Galaxy S21 supports Bluetooth 5.0, A2DP, LE, which offers better range, speed, and reliability than previous versions.
USB
The Galaxy S21 supports USB Type-C 3.2 and USB On-The-Go, which makes it easy to connect the phone to a variety of USB devices, such as flash drives, keyboards, and mice.
GPS
The Galaxy S21 supports GPS, A-GPS, GLONASS, BDS, and GALILEO, which allows users to accurately locate their position, velocity, and time 24 hours a day, in all weather conditions, anywhere in the world.
NFC
The Galaxy S21 supports Near Field Communication (NFC), which allows users to establish peer-to-peer radio communications with other NFC-enabled devices by touching them together or bringing them into proximity, usually no more than a few inches.
Radio
The Snapdragon model of the Galaxy S21 supports FM radio, which allows users to listen to their favorite radio stations without the need for an internet connection. However, the availability of FM radio depends on the market and operator.
Conclusion
The Samsung Galaxy S21's impressive connectivity features make it easy for users to connect to various networks and devices. Wi-Fi, Bluetooth, USB, GPS, NFC, and radio are all important features that enhance the user experience and allow users to stay connected wherever they go.
If you're looking for a phone that offers fast and stable internet connections, accurate location tracking, and easy data transfer, the Samsung Galaxy S21 is definitely worth considering.
As with any device that emits RF radiation, it's important to practice safe phone usage habits and consider using a radiation-blocking case like the QuantaCase to minimize exposure to harmful radiation.
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🔊 Sound

🔊 Loudspeaker: Yes, with stereo speakers
🔊 3.5mm Jack: No
🔊 Loudspeaker Test: -26.4 LUFS (Good)
🔊 Sound Review:
Introduction:
The Samsung Galaxy S21 boasts impressive specs that enhance user experience. In this review, we will focus on the phone's sound features, including the loudspeaker and 3.5mm jack.
Loudspeaker:
The Samsung Galaxy S21 comes with ...
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Introduction:
The Samsung Galaxy S21 boasts impressive specs that enhance user experience. In this review, we will focus on the phone's sound features, including the loudspeaker and 3.5mm jack.
Loudspeaker:
The Samsung Galaxy S21 comes with stereo speakers that provide a powerful and immersive audio experience. The loudspeaker test reveals that the phone has a sound pressure level of -26.4 LUFS, which is considered good. This means that you can enjoy clear and crisp sound even in noisy environments.
3.5mm Jack:
One major drawback of the Samsung Galaxy S21 is that it does not come with a 3.5mm jack. This means that you cannot use your traditional headphones unless you purchase a separate adapter. However, this can be a good thing for people who prefer wireless headphones.
Notable feature differences:
Compared to older Samsung Galaxy models, the S21's stereo speakers deliver a more robust sound quality. However, the lack of a 3.5mm jack is a notable difference that may be a deal-breaker for some users.
Overall impressions:
The Samsung Galaxy S21's sound features are impressive, especially the loudspeaker that provides a rich audio experience. However, the absence of a 3.5mm jack may be a drawback for some users. If you're someone who doesn't mind using wireless headphones, then the Samsung Galaxy S21 is an excellent choice.
Recommendation:
If you're in the market for a new phone and prioritize audio quality, the Samsung Galaxy S21's sound features are worth considering. Just keep in mind that you may need to purchase an adapter to use your traditional headphones. For an added bonus, consider the QuantaBuds Airtube Headset that can reduce radiation exposure.
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🎨 Design

🎨 Type: Bar
🎨 Dimensions: 151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
🎨 Weight: 169 g (Sub6), 171 g (mmWave) (5.96 oz)
🎨 Colors: Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
🎨 Build: Glass front (Gorilla Glass Victus), plastic back, aluminum frame
🎨 Design Review:
Introduction:
The Samsung Galaxy S21 boasts a range of impressive specs that are sure to enhance user experience. In this review, we will be focusing on the design specs of the phone, including its type, dimensions, weight, colors, and build.
D...
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Introduction:
The Samsung Galaxy S21 boasts a range of impressive specs that are sure to enhance user experience. In this review, we will be focusing on the design specs of the phone, including its type, dimensions, weight, colors, and build.
Design:
Type: Bar
The bar phone form factor of the Samsung Galaxy S21 offers a sleek and modern look that is both stylish and practical. Compared to older models, this design is slimmer and more compact, making it easier to hold and use with one hand.
Dimensions: 151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
The Samsung Galaxy S21's dimensions are impressive, given the size of the phone. It's slim and compact design allows it to easily fit in your pocket, purse, or bag. This makes it the perfect phone for those on the go who need a reliable device that won't weigh them down.
Weight: 169 g (Sub6), 171 g (mmWave) (5.96 oz)
Despite its impressive size and dimensions, the Samsung Galaxy S21 is surprisingly lightweight. This makes it easy to carry around and use for extended periods of time without causing strain or discomfort.
Colors: Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
The range of colors available for the Samsung Galaxy S21 is impressive, offering something for every style and preference. Whether you're looking for a classic and understated look or something bold and vibrant, this phone has you covered.
Build: Glass front (Gorilla Glass Victus), plastic back, aluminum frame
The build quality of the Samsung Galaxy S21 is top-notch, with a glass front (made of Gorilla Glass Victus) that is both durable and scratch-resistant. The plastic back and aluminum frame offer a nice contrast to the glass front, making this phone both stylish and practical.
Conclusion:
Overall, the design specs of the Samsung Galaxy S21 are impressive and offer a range of features that are sure to enhance user experience. From its slim and compact design to its durable build quality and range of colors, this phone is a great choice for anyone looking for a reliable and stylish device. If you're in the market for a new phone, be sure to consider the Samsung Galaxy S21 and its impressive design specs.
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🗼 Network

🗼 Speed: HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
🗼 SIM: Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
🗼 2G Network: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
🗼 3G Network: HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
🗼 4G Network: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G991U1
🗼 5G Network: 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1
🗼 Network Review:
Introduction The Samsung Galaxy S21 boasts impressive cell phone specs that enhance user experience. These features include network speed, SIM capabilities, and 2G-5G network compatibility.
Network
Speed The Samsung Galaxy S21 offers HSPA 42....
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Introduction The Samsung Galaxy S21 boasts impressive cell phone specs that enhance user experience. These features include network speed, SIM capabilities, and 2G-5G network compatibility.
Network
Speed The Samsung Galaxy S21 offers HSPA 42.2/5.76 Mbps, LTE-A (CA), and 5G network speeds. This means faster download and upload times, less lag, and overall smoother operation for users.
SIM The Galaxy S21 offers both single and dual SIM capabilities, allowing for flexibility in personal and professional use. Switching between devices has never been easier with the ability to transfer account information from one phone to another using a SIM card.
2G-5G Network Compatibility The Galaxy S21 supports GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only), HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100, and 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G991U1 5G networks. This ensures that users can stay connected no matter where they are, with faster download and upload speeds and less lag.
Conclusion The Samsung Galaxy S21's network features are impressive and enhance the user experience. With fast network speeds, flexible SIM capabilities, and compatibility with a wide range of networks, this phone is a top contender for those looking for a reliable and efficient device.
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⚠️ FCC SAR Levels

⚠️ FCC Approval Date: 08-12-2020
⚠️ FCC ID: A3LSMG991U
⚠️ FCC Report Link: FCC Specific Absorption Rate (SAR) Report For Manufacturer Submitted Model
⚠️ US SAR Ratings: USA Legal Limit is 1.6 W/kg - FCC SAR testing is measured in watts per kilogram (or W/kg) averaged over ONE gram of simulated biological tissue.
⚠️ Head SAR Level: 0.74 W/kg
⚠️ Body SAR Level: 1.08 W/kg
⚠️ Product Specific Use: 1.11 W/Kg
⚠️ Simultaneous Transmission: 1.58 W/kg
⚠️ Simultaneous Head: 1.45 W/kg
⚠️ Simultaneous Body: 1.54 W/kg
⚠️ Hotspot SAR: 1.58 W/kg