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Samsung Galaxy S21 Ultra Specifications

Key Specs General Performance Display Design Rear Camera Front Camera Battery Storage Network & Connectivity Multimedia Sensors

Key Specs
RAM & Storage	12 GB RAM + 256 GB 16 GB RAM + 512 GB
Processor	Samsung Exynos 2100
Rear Camera	108 MP + 12 MP + 10 MP + 10 MP
Front Camera	40 MP
Battery	5000 mAh
Display	6.8 inches (17.27 cm)

General
Launch Date	January 27, 2021 (Official)
Operating System	Android v11
Custom UI	Samsung One UI

Performance

(Very Good)

Chipset

Samsung Exynos 2100

Processor

Octa core (2.9 GHz, Single core, Cortex X1 + 2.8 GHz, Tri core, Cortex A78 + 2.2 GHz, Quad core, Cortex A55)

Architecture

64 bit

Fabrication

5 nm

Graphics (GPU)

Mali-G78 MP14

RAM

12 GB / 16 GB

RAM Type

LPDDR5

Performance Test Results icon

View AnTuTu Score

AnTuTu Score	646,482
Bootup Time	34.0 s

Speed Test (Antutu Score)

The higher, the better

OPPO Find X9 Ultra 4,033,382

vivo X300 Ultra 3,977,648

Samsung Galaxy S26 Ultra 3,905,605

vivo X300 Pro 3,536,552

Apple iPhone 17 Pro Max 2,521,699

Samsung Galaxy S25 Ultra 2,209,231

Samsung Galaxy S21 Ultra 646,482

*Group: 90-230k Phones

See comparison with other phones

Bootup Time

The lower, the better

Google Pixel 10 Pro XL 10 s

Samsung Galaxy S26 Ultra 11 s

Samsung Galaxy S25 Ultra 14 s

OPPO Find X9 Ultra 14 s

vivo X300 Ultra 14 s

Apple iPhone 17 Pro Max 17 s

Samsung Galaxy S21 Ultra 34 s

*Group: 90-230k Phones

See comparison with other phones

Gaming Test Results icon

Battery Drain*	8.0 %
Heating*	23.5 %

* after 30 mins of gaming

Battery Drain*

The lower, the better

Apple iPhone 17 Pro Max 3 %

OPPO Find X9 Ultra 4 %

Samsung Galaxy S25 Ultra 5 %

vivo X300 Ultra 7 %

Samsung Galaxy S21 Ultra 8 %

Samsung Galaxy S26 Ultra 8 %

Google Pixel 10 Pro 11 %

*Group: 90-230k Phones

See comparison with other phones

Heating*

The lower, the better

Samsung Galaxy Z Flip7 8.6 %

OPPO Find X9 Ultra 9.1 %

Samsung Galaxy S26 Ultra 14.1 %

vivo X300 Ultra 21.7 %

Samsung Galaxy S25 Ultra 22.5 %

Samsung Galaxy S21 Ultra 23.5 %

Apple iPhone 15 Pro Max 43.2 %

*Group: 90-230k Phones

See comparison with other phones

Benchmark Screenshots

AnTuTu Benchmark

Graphics Benchmark

GeekBench5 Benchmark

Featured

Display (Excellent)
Display Type	Dynamic AMOLED 2x
Screen Size	6.8 inches (17.27 cm)
Resolution	1440x3200 px (QHD+)
Brightness	1500 nits
Refresh Rate	120 Hz
Aspect Ratio	20:9
Pixel Density	516 ppi
Screen to Body Ratio (calculated)	89.44 %
Screen Protection	Corning Gorilla Glass, Glass Victus
Bezel-less Display	Yes with punch-hole display
HDR 10 / HDR+ Support	Yes, HDR 10+
UI Screenshots Lock Screen Home Screen Screen With Widgets Dialer Screen App Drawer Notification Panel Quick Settings Panel Settings Screen OS Version Storage Battery Camera On Camera Options Camera Modes Camera Settings Picture Size Options Video Size Options

Design
Height	165.1 mm
Width	75.6 mm
Thickness	8.9 mm
Weight	227 grams
Build Material	Back: Gorilla Glass
Water Resistance	Yes, Water resistant, IP68, (up to 30 minutes in a depth of 1.5 meter)
Ruggedness	Dust proof
Click to View

Rear Camera

(Excellent)

Resolution

Camera	MP	Lens Features	Aperture	Sensor Size	Sensor Name	Pixel Size	Zoom	Focal Length
Primary	108 MP	Wide Angle	f/1.8	1/1.33"	Samsung ISOCELL Plus S5KHM3	0.8µm		26 mm
Secondary	12 MP	Ultra-Wide Angle	f/2.2	1/2.55"		1.4µm		13 mm
Tertiary	10 MP	Telephoto		1/3.24"		1.22µm	upto 3x Optical Zoom	72 mm
Quaternary	10 MP		f/4.9	1/3.24"		1.22µm	upto 10x Optical Zoom

Autofocus

Yes, Phase Detection Autofocus, Laser Autofocus

OIS

Yes

Flash

Yes, LED Flash

Image Resolution

12000 x 9000 Pixels

Settings

Exposure compensation, ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

8k @24 fps
4k @30 fps
Full HD @60 fps
HD @960 fps

Video Recording Features

Slow Motion
Video HDR
Bokeh portrait video
Video Pro Mode

Rear Camera Samples

Wide Angle

Portrait Shot

Night Mode OFF

Night Mode ON

Close Up

Low Light

Low Light With Flash

Colour Variance

Daylight Auto / HDR OFF

Daylight / HDR ON

AI OFF

AI ON

Macro

Samsung Galaxy S21 Ultra Compare Camera Samples

Samsung Galaxy S21 Ultra 108 MP

Samsung Galaxy S22 Ultra 108 MP

Front Camera

(Excellent)

Resolution

Camera	MP	Lens Features	Aperture	Sensor Size	Sensor Name	Pixel Size	Focal Length
Primary	40 MP	Wide Angle	f/2.2	1/2.8"	Samsung S5KGH1	0.7µm	26 mm

Autofocus

Yes, Phase Detection Autofocus

Video Recording

4k @30 fps
Full HD @30 fps

Front Camera Samples

Selfie

Selfie Portrait

Selfie Low Light

Selfie Low Light With Flash

Battery

(Very Good)

Capacity

5000 mAh

Battery Type

Li-ion

TalkTime

Up to 41 Hours(4G)

Quick Charging

Yes, 25W Fast Charging

Wireless Charging

Yes

Wireless Reverse Charging

Yes

Battery Test Results icon

Battery Life (PC Mark)	10h 37m
Charging Time (20% to 100%)	55m 14s

Battery Life (PC Mark)

The higher, the better

OPPO Find X9 Ultra 17.1 hrs

Samsung Galaxy S24 Ultra 16.3 hrs

vivo X300 Pro 16.0 hrs

vivo X300 Ultra 15.2 hrs

Samsung Galaxy S26 Ultra 14.4 hrs

Samsung Galaxy S25 Ultra 13.9 hrs

Samsung Galaxy S21 Ultra 10.6 hrs

*Group: 90-230k Phones

See comparison with other phones

Charging Time (20% to 100%)

The lower, the better

vivo X300 Ultra 0.6 hrs

Samsung Galaxy S26 Ultra 0.6 hrs

Samsung Galaxy S25 Ultra 0.7 hrs

OPPO Find X9 Ultra 0.8 hrs

Samsung Galaxy S21 Ultra 0.9 hrs

Apple iPhone 17 Pro Max 1.3 hrs

Samsung Galaxy S24 Ultra 2.1 hrs

*Group: 90-230k Phones

See comparison with other phones

Storage
Internal Storage	256 GB / 512 GB
Storage Type	UFS 3.1
Expandable Storage	No

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano, SIM2: Nano

Network Support

5G, 4G

VoLTE

Yes

SIM 1

5G bands, 4G bands

Expand

Bands	Features
5G bands	FDD N1 / N3 / N5 / N7 / N8 / N20 / N28 / N66
	TDD N38 / N40 / N41 / N77 / N78
4G bands	TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
	FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

SIM 2

4G bands

Expand

Bands	Features
4G bands	TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
	FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

SAR Value

Head: 0.77 W/kg, Body: 1.02 W/kg

Wi-Fi

Yes, Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 5GHz, MIMO

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Bluetooth

Yes, v5.2

GPS

Yes with A-GPS, Glonass

NFC

Yes

Multimedia
Stereo Speakers	Yes
Audio Jack	USB Type-C

Sensors
Fingerprint Sensor	Yes
Fingerprint Sensor Position	On-screen
Fingerprint Sensor Type	Ultrasonic
Other Sensors	Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope

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