Samsung Galaxy S21 Ultra Review

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Main Features

Launched in February 2021

6.8" - 515 PPI

4 Cameras

Samsung Exynos 2100 Chipset

128/256/512 GB Storage

5000 mAh Battery

227 g (8.01 oz)

Replaced Samsung Galaxy S20 Ultra

Replaced by Samsung Galaxy S22 Ultra Snapdragon

Expected OS Support Ends in: 0 month(s)

Expected Security Support Ends in: 1 year(s)

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Samsung Galaxy S21 Ultra Overview

Samsung Galaxy S21 U...

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Samsung Galaxy S21 U...

See at AMAZON

Samsung Galaxy S21 Ultra is a Android phone with a 108.0 MP main camera and a 40.0 MP selfie camera. Galaxy S21 Ultra features a 6.8" sized Dynamic AMOLED screen with 1440 x 3200 pixels resolution. Samsung released Galaxy S21 Ultra to market in February 2021.

Samsung replaced the older Samsung Galaxy S20 Ultra with this model and later Galaxy S21 Ultra was replaced with Samsung Galaxy S22 Ultra Snapdragon.Follow the links to compare these phones in detail:
Compare Samsung Galaxy S21 Ultra vs Samsung Galaxy S20 Ultra
Compare Samsung Galaxy S21 Ultra vs Samsung Galaxy S22 Ultra Snapdragon

Galaxy S21 Ultra is a member of Samsung's Galaxy S series of smartphones. Below you can find the latest models from this series.

Samsung Galaxy S Series History

Model	Release Date	Screen Size	Cameras	Weight
Samsung Galaxy S24 FE Compare	October 2024	6.7"	3 (50 MP + 8 MP + 12 MP)	213 g (7.51 oz)
Samsung Galaxy S24 Ultra Compare	January 2024	6.8"	4 (200 MP + 50 MP + 10 MP + 12 MP)	232 g (8.18 oz)
Samsung Galaxy S24 Snapdragon Compare	January 2024	6.2"	3 (50 MP + 10 MP + 12 MP)	167 g (5.89 oz)
Samsung Galaxy S24 Exynos Compare	January 2024	6.2"	3 (50 MP + 10 MP + 12 MP)	167 g (5.89 oz)
Samsung Galaxy S24 Plus Exynos Compare	January 2024	6.7"	3 (50 MP + 10 MP + 12 MP)	196 g (6.91 oz)
Samsung Galaxy S24 Plus Snapdragon Compare	January 2024	6.7"	3 (50 MP + 10 MP + 12 MP)	196 g (6.91 oz)

Samsung Galaxy S21 Ultra PROs and CONs Review

Now let's get in to more details of our Samsung Galaxy S21 Ultra review by analysing its specs and features and listing out its pros and cons compared to average competitor phones in its class.

PROs

High PPI of 515 ppi

High Screen Refresh rate of 120 Hz

Adaptive Refresh Rate Screen

High Max Screen Brightness of 1500 nits

HDR Support (HDR10+)

Large 6.8" Screen

High Screen to Body ratio of 89.8%

Always-on Screen

DCI-P3 Color Space

IP68 rated Weather Sealings

Fingerprint Scanner (in-display)

12/16GB RAM

128/256/512 GB Storage

5000 mAh Battery

Wireless Charging Support(15 W)

Reverse Charging Support

Fast Charging Support (54% in 30 min)

108 MP Main Camera

Optical Zoom (10.0X)

8K Video Recording Up to Up to 24FPS

4K Video Recording Up to Up to 60FPS

960 FPS (720p) Slow Motion recording

4 (108 MP + 10 MP + 10 MP + 12 MP) Rear Lenses

Bokeh Mode

RAW Support

Pro Shooting Mode

40 MP Selfie Camera

4K Video (60p) with Selfie Camera

Bluetooth v5.2

USB Type-C v3.2

NFC (Near-field communication)

2 SIM Slots

eSIM Support

5G Support

Stereo Speakers

Dolby Atmos Support

Barometer Sensor

Optical Stabilization on the Main Camera

240 mm Telephoto Lens

Optical Stabilization on the Tele Camera

Large 1/1.33-inch Main Camera Sensor

CONs

Heavy at 227 g (8.01 oz)

Most Popular Alternatives to Samsung Galaxy S21 Ultra

Here are the 8 phones that our readers compare the most with the Samsung Galaxy S21 Ultra:

Samsung Galaxy S Popular Comparisons

Model	Release Date	Screen Size	Weight
Samsung Galaxy S22 Ultra Snapdragon Compare	February 2022	6.8"	228 g (8.04 oz)
Samsung Galaxy S20 Ultra Compare	March 2020	6.9"	220 g (7.76 oz)
Samsung Galaxy S24 Ultra Compare	January 2024	6.8"	232 g (8.18 oz)
Apple iPhone 16 Pro Max Compare	September 2024	6.9"	227 g (8.01 oz)
Realme 12 Pro Plus 5G Compare	January 2024	6.7"	196 g (6.91 oz)
Samsung Galaxy S24 Snapdragon Compare	January 2024	6.2"	167 g (5.89 oz)
Samsung Galaxy S24 Plus Snapdragon Compare	January 2024	6.7"	196 g (6.91 oz)
Samsung Galaxy S24 Plus Exynos Compare	January 2024	6.7"	196 g (6.91 oz)

Samsung Galaxy S21 Ultra Features and Specification

The Samsung Galaxy S21 Ultra was released in February 2021, following the Samsung Galaxy S20 Ultra. This model is nearing the end of its lifecycle. The expected remaining duration for updates is approximately 2 years. Consider this when evaluating its current price and intended use.

GENERAL
Brand	Samsung
Launch Date	February 2021
Product Series	Samsung Galaxy S
Predecessor Model	Samsung Galaxy S20 Ultra
Successor Model	Samsung Galaxy S22 Ultra Snapdragon
Operating System	Android 11 (Can be upgraded to Android 14)

PHYSICAL SPECS
Height	165.1 mm (6.5")
Width	75.6 mm (2.98")
Thickness	8.9 mm (0.35")
Weight	227 g (8.01 oz)
Waterproof	IP68
Available Colors	Black Silver Gray Blue
Rear Material	Glass
Frame Material	Metal

SCREEN
Screen Size	6.8"
Aspect Ratio	20:9
Resolution	1440 x 3200 pixels
PPI	515
Refresh Rate	120 Hz
Adaptive Refresh Rate
Max Brightness	1500 nits
HDR Support	HDR10+
Screen Protection	Gorilla Glass Victus
Screen-to-Body Ratio	89.8%
Display Features	DCI-P3 Always-On Display

CHIPSET
Chipset	Samsung Exynos 2100
CPU Cores	8 (1 + 3 + 4)
Architecture	4 cores @2.2 GHz: Cortex-A55 3 cores @2.81 GHz: Cortex-A78 1 core @2.91 GHz: Cortex-X1
Max Clock	2840 MHz
Lithography Process	5 nm
Graphics	Mali-G78 MP14
GPU Clock	854 MHz
GPU Shading Units	896
FLOPS	~1530.4 GFLOPS

RAM and STORAGE
RAM Size	12/16 GB
Memory Type	LPDDR5
Memory Clock	2840 MHz
Channels	2
Storage Size	128/256/512 GB
Storage Type	UFS 3.1
Memory Card	No

BATTERY and CHARGING
Battery Capacity	5000 mAh
Max Charging Power	25 W
Battery Type	Li-Ion
Replaceable Battery	No
Wireless Charging	Yes (15 W)
Reverse Charging	Yes, (wireless)
Fast Charging	Yes (54% in 30 min)
Full Charging Time	1:11 hr
Standby Time	99 hr

CAMERAS
Main Camera
Max Resolution	108 MP
Zoom	Optical, 10x
Flash	Dual LED
Image Stabilization	Optical
8K Video	Up to 24 FPS
4K Video	Up to 60 FPS
HD Video	Up to 60 FPS
Slow Motion	960 FPS (720p)
Angle of View	120°
Camera Set-up	4 (108 MP + 10 MP + 10 MP + 12 MP)
Telephoto Camera	10 MP Aperture: f/4.9 Focal length: 240 mm Pixel size: 1.22 micron Sensor: 1/2.65", Samsung S5K3J1 (ISOCELL CMOS) Phase autofocus (Dual Pixel) Optical stabilization
Telephoto Camera-2	10 MP Aperture: f/2.4 Focal length: 70 mm Pixel size: 1.22 micron Sensor: 1/3.24", Phase autofocus (Dual Pixel) Optical stabilization
Ultra-wide Camera	12 MP Aperture: f/2.2 Focal length: 13 mm Pixel size: 1.4 micron Sensor: 1/2.55", Sony IMX563 (Exmor-RS CMOS) Phase autofocus (Dual Pixel)
Camera Features	Bokeh mode Pro mode RAW support
Selfie Camera
Max Resolution	40.0 MP
Aperture	f/2.2
Focal Length	26 mm
Pixel Size	0.7 microns
Sensor Type	ISOCELL CMOS
Sensor Size	1/2.65"
Video Resolution	2160p (4K) at 60 FPS

CONNECTIVITY
WiFi Standard	Wi-Fi 6E (802.11 a/b/g/n/ac/ax)
WiFi Features	Dual Band Wi-Fi MiMO Wi-Fi Direct Wi-Fi Hotspot Wi-Fi Display
Bluetooth Version	5.2
Bluetooth Features	LE, A2DP
USB Type	USB Type-C
USB Version	3.2
USB Features	Charging USB-Storage mode USB-Host mode OTG
GPS	GPS, GLONASS, Beidou, Galileo
NFC
Infrared Port