Samsung · Phone profile

Samsung Galaxy S21

Reported SAR values from FCC filings, how they compare, and the full specifications.

Display6.2 inches

ChipsetExynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China

FCC IDA3LSMG991U

Compare this phone Phone-vs-phone pages SAR Kids view

FCC ID A3LSMG991U · released 2020-12-08.

SAR overview

Reported US test values · W/kg averaged over 1 g of tissue · FCC limit 1.6 W/kg

Head SAR · cellular only0.74 W/kg46% of the US 1.6 W/kg limit

Body SAR · cellular only1.08 W/kg68% of the US 1.6 W/kg limit

Hotspot SAR · cellular only1.11 W/kg69% of the US 1.6 W/kg limit

Head SAR · simultaneous1.45 W/kg91% of the US 1.6 W/kg limit

Body SAR · simultaneous1.54 W/kg96% of the US 1.6 W/kg limit

Hotspot SAR · simultaneous1.58 W/kg99% of the US 1.6 W/kg limit

0–0.400.41–0.800.81–1.201.21+ W/kg

Colors show reported SAR ranges, not a safety verdict. A lower listed maximum does not guarantee lower everyday exposure. How to read these numbers.

EU values and source

Head (EU, 10 g, 2 W/kg limit)	0.46 W/kg
Body (EU, 10 g)	1.51 W/kg
FCC ID	A3LSMG991U
Source	RF Safe original phone profile

SAR comparison chart

Samsung Galaxy S21 SAR chart: cellular-only versus simultaneous Wi-Fi and cellular test values — RF Safe source chart. Open it for the full-size version.

Head and body views

Samsung Galaxy S21 head SAR visual — Head SAR view, as illustrated by RF Safe.

Samsung Galaxy S21 body SAR visual — Body SAR view, as illustrated by RF Safe.

See it through a child-size lens

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Full specifications

General

Phone	Samsung Galaxy S21
Technology	GSM / CDMA / HSPA / EVDO / LTE / 5G
Announced	2021-01-14 22:28:09
Status	Available. Released 2021, January 29
Model Names	SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910

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)

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

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

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

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)

Sound

Loudspeaker	Yes, with stereo speakers
3.5mm Jack	No
Loudspeaker Test	-26.4 LUFS (Good)

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

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