Samsung Galaxy S21 5G Specs, review, opinions, comparisons

Samsung Galaxy S21 5G Specs, review, opinions, comparisons
Samsung Galaxy S21 5G pictures Samsung Galaxy S21 5G pictures Samsung Galaxy S21 5G pictures Samsung Galaxy S21 5G pictures Samsung Galaxy S21 5G pictures
Rate this smartphone

Samsung Galaxy S21 5G Top Specs

  • Release Date: 2021, January 14
  • Dimensions: 151.7 x 71.2 x 7.9 mm
  • Weight: 169 g
  • Screen: 6.2", Dynamic AMOLED 2X
  • Main Camera: Triple, 12 MP
  • Selfi Camera: Single, 10 MP
  • Memory: 128GB 8GB RAM, 256GB 8GB RAM
  • CPU: Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
  • Battery: 4000 mAh
  • Sensors: Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer

Here you will find everything about the Samsung Galaxy S21 5G

Related models

Compare with another smartphone

Technical specifications

General specs
Brand and model Samsung Galaxy S21 5G
Release date 2021, January 14
Dimensions 151.7 x 71.2 x 7.9 mm (5.97 x 2.8 x 0.31 in)
Weight 169 g (5.96 oz)
Body build Glass front (Gorilla Glass Victus), plastic back, aluminum frame
Colors Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
Battery 4000 mAh, Li-Ion, non-removable
Approximate price$ 800
Technology Dynamic AMOLED 2X
Touchscreen capacitive touchscreen
Display colors 16M
Screen size 6.2" inc
Screen area 94.1 cm2
Screen format 20:9 (height:width)
Screen to body ratio87.2%
Screen resolution 1080 x 2400 px
PPI /points per inch/ 421 PPI
Screen protection Corning Gorilla Glass Victus
Other - Always-on display
-1300 nits (peak)
Camera and Video
Rear camera, main 12 MP, Triple
Camera specs
-12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
-64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
-12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Functions LED flash, auto-HDR, panorama
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
DxOMark Main Score116
DxOMark Photo123
DxOMark Video93
Front camera, selfie 10 MP, Single
Specifications 10 MP, f/2.2, 26mm (wide), 1/3.24'', 1.22µm, Dual Pixel PDAF
Functions Dual video call, Auto-HDR
Video 4K@30/60fps, 1080p@30fps
DxOMark Selfie Score98
DxOMark Photo100
DxOMark Video95
Operating system OS Android 11, One UI 3.1
Chipset - Exynos 2100 (5 nm)
- Qualcomm SM8350 Snapdragon 888 (5 nm) - USA/China
Processor CPU
- Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
-Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China
Graphics processor GPU - Mali-G78 MP14 - International
-Adreno 660 - USA/China
External memory No
Internal memory 128GB 8GB RAM, 256GB 8GB RAM
Antutu 9 score755368
Antutu 8 score601547
GeekBench 5 Single Core945
GeekBench 5 Multi-Core3061
Communication and Connectivity
SIM card Single SIM (Nano-SIM and/or eSIM)Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
Network GSM / CDMA / HSPA / EVDO / LTE / 5G
Show all network frequencies:
Speed HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
Edge Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
USB USB Type-C 3.2, USB On-The-Go
Bluetooth 5.0, A2DP, LE
Harmful irradiation
SAR - 0.74 W/kg (head) 1.08 W/kg (body)
SAR EU - 0.46 W/kg (head) 1.51 W/kg (body)
Music and Audio
Radio FM radio (Snapdragon only)
Headphone jack No
- 32-bit/384kHz audio
-Tuned by AKG
Other features
- Sensors - Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
- Samsung DeX, Samsung Wireless DeX (desktop experience support)
-Bixby natural language commands and dictation
- Fast charging 25W
-USB Power Delivery 3.0
-Fast Qi/PMA wireless charging 15W
-Reverse wireless charging 4.5W
- Samsung Pay (Visa, MasterCard certified)
-IP68 dust/water resistant (up to 1.5m for 30 mins)
- Versions: SM-G991B, SM-G991B/DS (International); SM-G991U (USA); SM-G991U1 (USA unlocked); SM-G991W (Canada); SM-G991N (Korea); SM-G9910 (China)

Samsung Galaxy S21 5G Video review - click to play

Samsung Galaxy S21 5G Review

In early 2021, Samsung introduced its new Galaxy S series, whose representatives are three models - S21, S21+ and S21 Ultra. Among them, the most budget solution is the Galaxy S21. It is noticeable that his company has paid attention to him, but do not expect serious changes. The smartphone has a refreshed design and a new platform.


One of the main innovations in the Galaxy S21 is the design. The corners of the display are slightly rounded, in place of the old camera unit there is another. The appearance of the smartphone is modern and fresh. Intriguing at first sight. The frames smoothly surround the screen.

Pay attention to the plastic back panel of the Galaxy S21. Traditionally, devices in this class rely on metal, but this is not the case with the base model of the new generation Galaxy S. The back is matte and pleasant to the touch.

As dimensions Galaxy S21 offers comfort. Its dimensions are 151.7 x 71.2 x 7.9 mm with a weight of only 172 grams. This device will be super comfortable for anyone with smaller palms.


The smartphone has a 6.2-inch display, FHD+ and AMOLED 2X Infinity-O. Although it is the most compact of its generation, you can enjoy a quality picture. It is convenient for watching videos and reading. The display has excellent color rendering and high brightness. You can include a dark theme for convenience.

The screen of the Galaxy S21 supports adaptive vision protection mode. It's called the Eye Comfort Shield. Blue filtering is done automatically - depending on the content you use.


Galaxy S21 has an Exynos 2100 chip, based on a 5-nm process technology. It is characterized by high energy efficiency and ensures smooth operation of the system and applications. It is also equipped with a 5G modem and uses neural networks to work with artificial intelligence.

Samsung's new processor is 10% more powerful and 20% more energy efficient than its predecessor. It includes 8 cores clocked at up to 2.9 GHz and an Arm Mali G78 video chip.

In addition, we must point out that the Galaxy S21 is equipped with 8 GB of RAM and 128/256 GB of internal storage. No expansion with memory card is provided.


The most interesting thing in this flagship model of Samsung are its photographic capabilities. Galaxy S21 has the best sensors and new image processing technology. The device supports zooming up to 30 times and can shoot 8K video.

In addition, the Galaxy S21 has a basic 12-megapixel sensor with an aperture of f1.8, a 12-megapixel ultra-wide sensor, a 64-megapixel telephoto lens with triple optical zoom and an aperture of f2.0, and a 10-megapixel front sensor.

The smartphone will attract attention with its automatic mode, with which you can take quality shots effortlessly. No need to adjust anything. Just push the button. This nice feature is the result of an advanced AI processing system.

Galaxy S21 supports Space Zoom technology, which allows you to take photos at 30x magnification. In addition, the user gets the opportunity to create their own filters.

With the advent of this generation of flagships, the portrait mode is now called "Portrait". It allows you to adjust the type of lighting, adjust the smoothness of the skin and blur the background. Artificial intelligence does an excellent job of defining the faces in photos and capturing them. In this mode, you can shoot even distant objects and people.

Although the night mode in the Galaxy S20 is perfect, in the new generation - Galaxy S21, Samsung claims that it has been improved.

The front camera of the smartphone works perfectly. It is equipped with autofocus, background blur adjustment, a bunch of filters and retouching. The device supports "Multi-frame" mode, in which you create photos with all cameras and in all modes at the touch of a button. So in the end it is up to you to decide which shot is the best.

When shooting video, the Galaxy S21 offers a maximum resolution with the main camera 8K at 24 frames per second. The front camera records video in 4K at 60 frames per second. You get Cinema mode, where you can shoot with both the front and main cameras, switching smoothly between them.

Autonomous work

Galaxy S21 is equipped with a battery with a capacity of 4000 mAh. Even singing a normal load you can rely on it around the clock. The full charge can be exhausted by constantly surfing the Internet for 16 hours. Galaxy S21 supports fast charging technology with power up to 25 watts.


The base Galaxy S21 is the golden mean in its series. Its screen is large enough, the cameras are high quality, the memory is ample, and the performance is at a modern flagship level.

Comparisons Comments Share on Share on Error report

Samsung Galaxy S21 5G - comments and opinions

Write your opinion or comment

There are no comments yet. Be the first to comment.

Check out these similar smartphones too:

New models from the same brand:

Frequently Asked Questions

The base approximate price of the Samsung Galaxy S21 5G was around $ 800 after it was officially announced. At this point, the price may be lower.
The official release date is 2021, January 14.
The weight of the Samsung Galaxy S21 5G is 169 g.
The screen size of the Samsung Galaxy S21 5G is 6.2" inches.
The size of the Samsung Galaxy S21 5G is 151.7 x 71.2 x 7.9 mm (HxWxD).
Yes, it supports fast charging.
Yes, it supports wireless charging.
Yes, it supports the services of Google Play store, gmail, youtube, etc.
There is Triple main camera and Single selfi camera.
To turn on the phone, press and hold the power key until the logo appears on the screen, then release the key. If the phone does not turn on after a few seconds, connect the charger and try again in a minute.
To turn off the phone, press and hold the power button until the power icon appears, then tap the power icon.
To restart the phone, press and hold the volume down key and the power key at the same time until the logo appears on the screen, then release them. This may take up to 30 seconds.
To take a screenshot, press and release the volume down button and the power button at the same time. A thumbnail of the screenshot will appear immediately after that.