Samsung Galaxy S21 5G

Specifications

2021, January 14 Released
Samsung Galaxy S21 5G
Display
6.2"
1080x2400 pixels
Camera
64 MP
4320p
RAM & Chipset
6/8 GB RAM
Exynos 2100
Battery
4000 mAh
25W15W

Detailed Specifications

Full technical breakdown of Samsung Galaxy S21 5G

Network

Technology
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
 
CDMA 800 / 1900 & TD-SCDMA
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
 
CDMA2000 1xEV-DO
4G bands
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
 
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G991B
5G bands
2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1
 
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G991B
Speed
HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)

Launch

Announced
2021, January 14
Status
Available. Released 2021, January 29

Body

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)
Build
Glass front (Gorilla Glass Victus), plastic back, aluminum frame
SIM
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
 
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)

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

Platform

OS
Android 11, up to 4 major Android upgrades, One UI 6.1
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 Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
GPU
Mali-G78 MP14 - InternationalAdreno 660 - USA/China

Memory

Card slot
No
Internal
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 
UFS 3.1

Main Camera

Triple
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
Features
LED flash, auto-HDR, panorama
Video
8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS

Selfie Camera

Single
10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Features
HDR
Video
4K@30/60fps, 1080p@30fps

Sound

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No
 
High-bitrate audio support

Comms

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
Positioning
GPS, GLONASS, BDS, GALILEO
NFC
Yes
Radio
FM radio (Snapdragon model only; market/operator dependent)
USB
USB Type-C 3.2, OTG

Features

Sensors
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 
Samsung DeX, Samsung Wireless DeX (desktop experience support)

Battery

Type
Li-Ion 4000 mAh
Charging
25W wired, PD3.0
15W wireless (Qi)
4.5W reverse wireless

Misc

Colors
Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
Models
SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09
SAR
0.74 W/kg (head)     1.08 W/kg (body)    
SAR EU
0.46 W/kg (head)     1.51 W/kg (body)    
Price
€ 170.02 / $ 150.00 / £ 152.00

Our Tests

Performance

AnTuTu: 584055 (v8)
GeekBench: 3238 (v5.1)
GFXBench: 60fps (ES 3.1 onscreen)
Display
856 nits max brightness (measured)
Camera
Photo / Video
Loudspeaker
-26.4 LUFS (Good)
Battery (old)
Endurance rating 93h

Video Review

Watch the Samsung Galaxy S21 5G in action

Samsung Galaxy S21 5G — Complete Review & Specifications 2026

Everything you need to know about the Samsung Galaxy S21 5G before buying

The smartphone market continues to expand with exciting new releases, and the Samsung Galaxy S21 5G is one of the devices that has captured the attention of tech enthusiasts and everyday users alike. Whether you are considering purchasing the Samsung Galaxy S21 5G as your next daily driver or simply want to understand what this device has to offer, this comprehensive review will walk you through every important aspect of its specifications and help you decide if it is the right phone for you. At PhoneSpecs, we provide detailed, accurate specification data so you can make informed purchasing decisions with confidence.

Design and Build Quality of the Samsung Galaxy S21 5G

First impressions matter, and the Samsung Galaxy S21 5G delivers a design that reflects current smartphone trends. Modern smartphones are expected to combine aesthetics with durability, and the Samsung Galaxy S21 5G aims to strike that balance. The device features a carefully crafted body that feels comfortable in the hand while maintaining a sleek, contemporary appearance. Build quality is an essential factor when investing in a new phone — you want a device that not only looks premium but can also withstand the rigors of daily use. The Samsung Galaxy S21 5G incorporates materials and construction techniques designed to provide both visual appeal and structural integrity.

Display and Visual Experience

The display is the component you interact with most on any smartphone, and the Samsung Galaxy S21 5G comes equipped with a screen designed to deliver an engaging visual experience. Whether you are scrolling through social media, watching streaming content, or playing games, the display quality significantly impacts your overall satisfaction. Key factors include resolution sharpness, color accuracy, brightness levels for outdoor visibility, and refresh rate smoothness. The Samsung Galaxy S21 5G specification sheet on PhoneSpecs provides the exact display specifications so you can determine if the screen meets your standards.

Camera System and Photography

For many buyers, the camera system is the deciding factor when choosing a new smartphone. Modern smartphone photography uses multi-lens configurations, advanced AI processing, and sophisticated algorithms to produce images that rival dedicated cameras. The Samsung Galaxy S21 5G camera system is engineered to handle various shooting scenarios — from bright daylight landscapes to challenging low-light environments, from ultra-wide group photos to detailed macro shots. Visit the full specification page on PhoneSpecs to explore the exact camera configuration, sensor details, and supported shooting modes.

Battery Life and Charging Technology

A smartphone is only as good as its battery life — no amount of impressive features matters if your phone dies halfway through the day. The Samsung Galaxy S21 5G is equipped with a battery designed to keep up with your daily activities. Battery capacity provides a baseline estimate, but real-world performance depends on display efficiency, processor power management, and software optimization. Equally important is the charging technology — modern fast charging can dramatically reduce the time you spend tethered to a charger. Check the battery and charging details on PhoneSpecs.

Is the Samsung Galaxy S21 5G Worth Buying?

Ultimately, whether the Samsung Galaxy S21 5G is the right phone for you depends on your individual priorities, usage patterns, and budget. By reviewing the complete specification sheet available here on PhoneSpecs, you can compare every technical detail against competing devices to determine which phone truly offers the best value for your specific needs. Explore our extensive database to discover your perfect smartphone.

Starting Price
€ 170.02 / $ 150.00 / £ 152.00

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