Samsung Galaxy S21 Ultra 5G

Released 2021, January 29
227g (Sub6), 229g (mmWave), 8.9mm thickness
Android 11, up to 4 major OS updates
128GB/256GB/512GB storage, no card slot
6.9% 22,273,147 hits
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6.8"
1440x3200 pixels
108MP
4320p
8-16GB RAM
Exynos 2100
5000mAh
25W15W

Versions: SM-G998B, SM-G998B/DS (International); SM-G998U (USA); SM-G998U1 (USA unlocked); SM-G998W (Canada); SM-G998N (Korea); SM-G9980 (China)

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-G998U1
		1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G998B
	5G bands	2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
		1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
	Speed	HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)

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

Body	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)
	Build	Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), 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) Stylus support

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

Platform	OS	Android 11, up to 4 major OS updates, One UI 7
	Chipset	Exynos 2100 (5 nm) - International Qualcomm 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) - International Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
	GPU	Mali-G78 MP14 - International Adreno 660 - USA/China

Memory	Card slot	No
	Internal	128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
		UFS 3.1

Main Camera	Quad	108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
	Features	Laser AF, 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	40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, 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/6e, dual-band, Wi-Fi Direct
	Bluetooth	5.2, 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) Ultra Wideband (UWB) support

Battery	Type	Li-Ion 5000 mAh
	Charging	25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless

Misc	Colors	Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
	Models	SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
	SAR	0.77 W/kg (head) 1.02 W/kg (body)
	SAR EU	0.71 W/kg (head) 1.58 W/kg (body)
	Price	$ 240.00 / £ 189.25 / € 286.60


Our Tests	Performance	AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)
	Display	1023 nits max brightness (measured)
	Camera	Photo / Video
	Loudspeaker	-25.5 LUFS (Very good)
	Battery (old)	Endurance rating 114h

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Pricing

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128GB 12GB RAM	$ 240.00	£ 189.25
256GB 12GB RAM	$ 289.95	£ 309.00

Samsung Galaxy S21 Ultra 5G - user opinions and reviews

Sameer
Cb8
26 Oct 2026

Using this phone(refurbished) since 6 months. No issues except the battery. And if you play games then it will heat up fast. I guess that's due to the 5-6 years old processor. Pictures and video quality is good. Overall decent purchase.

DaBestOne
nRr
08 Sep 2026

Brother even the Snapdragon 888 isn't much efficient

Daffyt
phj
01 Sep 2026

Bought this second hand in 2023. SD version. Absolutely no issues. Still getting 1.5 days with mixed usage easily. Heavy usage means it's a one day phone. Cameras are still top of the line. Performance-wise, can't complain. It does everythi...

Samsung Galaxy S21 Ultra 5G

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Samsung Galaxy S21 Ultra 5G - user opinions and reviews

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