Samsung Galaxy S21 Plus Review

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Main Features

Launched in February 2021

6.7" - 394 PPI

3 Cameras

Samsung Exynos 2100 Chipset

128/256 GB Storage

4800 mAh Battery

200 g (7.05 oz)

Replaced Samsung Galaxy S20 Plus

Expected OS Support Ends in: Ended

Expected Security Support Ends in: 10 month(s)

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Samsung Galaxy S21 Plus Overview

Samsung Galaxy S21 Plus is a Android phone with a 12.0 MP main camera and a 10.0 MP selfie camera. Galaxy S21 Plus features a 6.7" sized Dynamic AMOLED screen with 1080 x 2400 pixels resolution. Samsung released Galaxy S21 Plus to market in February 2021.

Samsung replaced the older Samsung Galaxy S20 Plus with this model. Follow the link to read our detailed comparison of this model:
Compare Samsung Galaxy S21 Plus vs Samsung Galaxy S20 Plus

Galaxy S21 Plus 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 S25 Ultra Compare	February 2025	6.9"	4 (200 MP + 50 MP + 10 MP + 50 MP)	218 g (7.69 oz)
Samsung Galaxy S25 Plus Compare	February 2025	6.7"	3 (50 MP + 10 MP + 12 MP)	190 g (6.7 oz)
Samsung Galaxy S25 Compare	February 2025	6.2"	3 (50 MP + 10 MP + 12 MP)	162 g (5.71 oz)
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 S21 Plus PROs and CONs Review

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

PROs

High Screen Refresh rate of 120 Hz

High Max Screen Brightness of 1300 nits

HDR Support (HDR10+)

Large 6.7" Screen

High Screen to Body ratio of 88.3%

Always-on Screen

DCI-P3 Color Space

Screen covers 98.9% of RBG color space

Short Response time of 6.2 ms

IP68 rated Weather Sealings

Fingerprint Scanner (in-display)

8GB RAM

128/256 GB Storage

4800 mAh Battery

Wireless Charging Support(15 W)

Reverse Charging Support

Fast Charging Support (54% in 30 min)

64.0 MP Telephoto Camera

Optical Zoom (1.0X)

8K Video Recording Up to Up to 24FPS

4K Video Recording Up to Up to 60FPS

960 FPS (720p) Slow Motion recording

3 (12 MP + 64 MP + 12 MP) Rear Lenses

Bokeh Mode

RAW Support

Pro Shooting Mode

4K Video (60p) with Selfie Camera

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

Optical Stabilization on the Tele Camera

CONs

No significant CONS

Most Popular Alternatives to Samsung Galaxy S21 Plus

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

Samsung Galaxy S Popular Comparisons

Model	Release Date	Screen Size	Weight
Samsung Galaxy S24 Ultra Compare	January 2024	6.8"	232 g (8.18 oz)
Samsung Galaxy S10 Plus Compare	March 2019	6.4"	175 g (6.17 oz)
Samsung Galaxy S24 FE Compare	October 2024	6.7"	213 g (7.51 oz)
Samsung Galaxy S24 Plus Exynos 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 S20 Plus Compare	March 2020	6.7"	186 g (6.56 oz)
Samsung Galaxy S23 FE Snapdragon Compare	October 2023	6.4"	209 g (7.37 oz)

Samsung Galaxy S21 Plus Features and Specification

The Samsung Galaxy S21 Plus was released in February 2021, following the Samsung Galaxy S20 Plus. This model is nearing the end of its lifecycle. The expected remaining duration for updates is approximately 1 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 Plus
Operating System	Android 11 (Can be upgraded to Android 14)
PHYSICAL SPECS
Height	161.5 mm (6.36")
Width	75.6 mm (2.98")
Thickness	7.8 mm (0.31")
Weight	200 g (7.05 oz)
Waterproof	IP68
Available Colors	Black Silver Gold Red Purple
Rear Material	Glass
Frame Material	Metal
SCREEN
Screen Size	6.7"
Aspect Ratio	20:9
Resolution	1080 x 2400 pixels
PPI	394
Refresh Rate	120 Hz
Adaptive Refresh Rate
Max Brightness	1300 nits
HDR Support	HDR10+
Screen Protection	Gorilla Glass Victus
Screen-to-Body Ratio	88.3%
Display Features	DCI-P3 Always-On Display
RGB Color Space	98.9%
PWM	240 Hz
Response Time	6.2 ms
Contrast	∞ Infinity
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	8 GB
Memory Type	LPDDR5
Memory Clock	2840 MHz
Channels	2
Storage Size	128/256 GB
Storage Type	UFS 3.1
Memory Card	No
BATTERY and CHARGING
Battery Capacity	4800 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	1:12 hr
Standby Time	102 hr
CAMERAS
Main Camera
Max Resolution	12 MP
Zoom	Optical, 1.1x
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	3 (12 MP + 64 MP + 12 MP)
Telephoto Camera	64 MP Aperture: f/2.0 Focal length: 28 mm Pixel size: 0.8 micron Sensor: 1/1.72", Samsung Bright S5KGW2 (ISOCELL Plus CMOS) 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	10.0 MP
Aperture	f/2.2
Focal Length	26 mm
Pixel Size	1.22 microns
Sensor Type	Exmor-RS CMOS
Sensor Size	1/3.24"
Video Resolution	2160p (4K) at 60 FPS
CONNECTIVITY
WiFi Standard	Wi-Fi 6 (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
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