Samsung · Phone profile

Samsung Galaxy S21 Ultra

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

Display6.8 inches

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

FCC IDA3LSMG998U

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

FCC ID A3LSMG998U · released 2020-12-22.

SAR overview

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

Head SAR · cellular only0.77 W/kg48% of the US 1.6 W/kg limit

Body SAR · cellular only1.02 W/kg64% of the US 1.6 W/kg limit

Hotspot SAR · cellular only1.16 W/kg72% of the US 1.6 W/kg limit

Head SAR · simultaneous1.17 W/kg73% of the US 1.6 W/kg limit

Body SAR · simultaneous1.57 W/kg98% of the US 1.6 W/kg limit

Hotspot SAR · simultaneous1.59 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)	0.71 W/kg
Body (EU, 10 g)	1.58 W/kg
FCC ID	A3LSMG998U
Source	RF Safe original phone profile

SAR comparison chart

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

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

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Full specifications

General

Phone	Samsung Galaxy S21 Ultra
Technology	GSM / CDMA / HSPA / EVDO / LTE / 5G
Announced	2021-01-14 22:28:20
Status	Available. Released 2021, January 29
Model Names	SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980

Display

Type	Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
Size	6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
Resolution	1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Protection	Corning Gorilla Glass Victus
Features	Corning Gorilla Glass Victus Always-on display
Display Test	Contrast ratio: Infinite (nominal)

Camera

Main Camera	Quad Camera: 108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8m, PDAF, Laser AF, OIS 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22m, dual pixel PDAF, OIS, 10x optical zoom 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22m, dual pixel PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4m, dual pixel PDAF, 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: 40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7m, PDAF
Selfie Camera Features	Dual video call, Auto-HDR
Selfie Camera Video	4K@30/60fps, 1080p@30fps

Battery

Type	Li-Ion 5000 mAh, non-removable
Battery Test	Endurance rating 114h
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: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)
Internal Storage	128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB 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/6e, dual-band, Wi-Fi Direct, hotspot
Bluetooth	5.2, 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	-25.5 LUFS (Very good)

Design

Type	Bar
Dimensions	165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
Weight	227 g (Sub6), 229 g (mmWave) (8.01 oz)
Colors	Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
Build	Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), 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-G998U1
5G Network	2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1