OnePlus 9 vs Samsung Galaxy S21 5G: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: OnePlus 9 vs Samsung Galaxy S21 5G. The complete information of specifications to decide which to buy.

Compare
OnePlus 9OnePlus 9Global · 8GB · 128GB
Samsung Galaxy S21 5GSamsung Galaxy S21 5GGlobal · 8GB · 128GB · SM-G991B
Technical data sheets

Basics
OnePlus 9
OnePlus 9
Global · 8GB · 128GB
View datasheet
vs
Samsung Galaxy S21 5G
Samsung Galaxy S21 5G
Global · 8GB · 128GB · SM-G991B
View datasheet
vs

Score
Ki Cost-effective
Score		 8.4 Ki Cost-effective
Score 		8.5 Ki Cost-effective
Score
Design and Screen score 7.4Design & Materials 7.7Design & Materials
Performance and Hardware score 7.9Performance & Hardware 7.4Performance & Hardware
Camera score 7.3Camera 8.0Camera
Connectivity score 8.4 Connectivity 8.5 Connectivity
Battery score 6.2 Battery 5.5 Battery

User reviews
User score
9.2
38 reviews
8.6
62 reviews

Technical specifications of the OnePlus 9 vs Samsung Galaxy S21 5G

Specs stores to buy OnePlus 9 OnePlus 9
Global · 8GB · 128GB 		stores to buy Samsung Galaxy S21 5G Samsung Galaxy S21 5G
Global · 8GB · 128GB · SM-G991B
Inches 6.55" 6.2"
Resolution FHD+ FHD+
Usable surface 87% useful 88% useful
Aspect Ratio 20:9 20:9
Dimensions 74.2 mm
160.0 mm
8.7 mm 		71.2 mm
151.7 mm
7.9 mm
Weight 192 g 169 g
Micro SnapD. 888
Octa-Core 		Exynos 2100
Octa-Core
RAM 8 GB RAM 8 GB RAM
Storage 128 GB 128 GB
AnTuTu 880.900
v10 		749.100
v10
Battery 4500 mAh 4000 mAh
Main Camera 1
48 Mpx · ƒ/1.79
IMX689
2 3 		1
12 Mpx · ƒ/1.8
IMX555
2 3
Selfie Camera SELF 16 Mpx · ƒ/2.4 SELF 10 Mpx · ƒ/2.2
Bands
OS Android 13 Tiramisu Android 14 Upside-down cake

Brand
Brand OnePlus Samsung
Aliases LE2113 SM-G991B

Release Date
Release date March 2021,
3 years ago 		January 2021,
3 years ago
State On Sale On Sale
Market Global Global

Design & Materials

Structure

OnePlus 9
Samsung Galaxy S21 5G
OnePlus 9
Samsung Galaxy S21 5G
Size
74.2 mm • 160.0 mm • 8.7 mm
See more details
 Print 3D Model
71.2 mm • 151.7 mm • 7.9 mm
See more details
 Print 3D Model
Weight 192 g 169 g
Usable surface 87 % 88 %
Materials Plastic, Glass Plastic, Aluminium
Resistance - IP68
Colors
Black

Blue

Violet
White

Pink

Gray

Violet

Screen
Diagonal 6.55" 6.2"
Type AMOLED AMOLED • Dynamic Amoled 2X
Aspect Ratio 20:9 20:9
Resolution FHD+
1080 x 2400 px 		FHD+
1080 x 2400 px
Density 402 Pixels per inch 424 Pixels per inch

Others

Others
  • Hole-punch Notch
  • Refresh rate 120 Hz
  • Peak brightness - 1100 cd/m²
  • HDR10+
  • MEMC
  • Scratch resistant
  • 2.5D curved glass screen
  • Corning Gorilla Glass 5
  • Capacitive
  • Multi-touch
  • Frameless
  • Hole-punch Notch
  • Refresh rate 120 Hz
  • Peak brightness - 1300 cd/m²
  • Always-On Display
  • HDR10+
  • Scratch resistant
  • Corning Gorilla Glass Victus
  • Capacitive
  • Multi-touch
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
8.9
8.2
Do you think it's a nice phone?
9.3
9.4
Is it comfortable?
9.1
9.5
Can you see it well in the sunlight?
9.2
9.0
Number of reviews
38 reviews
62 reviews

Performance & Hardware

Processor
Model Qualcomm Snapdragon 888 Samsung Exynos 2100
CPU 1x Cortex X1 2.84GHz + 3x Cortex A78 2.42GHz + 4x Cortex A55 1.8GHz 1x Cortex-X1 2,91 GHz + 3x Cortex-A78 2,81 GHz + 4x Cortex-A55 2,21 GHz.
Type Octa-Core Octa-Core
Manufacturing 5 nm 5 nm
64 Bits Yes Yes

Graphics
GPU Adreno 660 ARM Mali-G78 MC14

RAM
RAM 8 GB 8 GB
Type RAM LPDDR5 RAM LPDDR5

Antutu
Score
880.900
Antutu v10
Overall performance better than 88% of devices
See more details
749.100
Antutu v10
Overall performance better than 85% of devices
See more details

Storage
Capacity 128 GB 128 GB
Type UFS Storage 3.1 UFS Storage 3.1
SD Slot No No

Security
Fingerprint Yes, in screen Yes, in screen

Sensors
Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Barometer
  • Hall
  • Geomagnetic

Audio

Audio
  • Dolby Atmos
  • Noise cancellation microphone
  • Stereo Speakers
  • 3 microphones
  • Dolby Atmos
  • Noise cancellation microphone
  • Stereo Speakers

Others
Notifications LED -- --
Cooling system Yes No
Gaming buttons No No

User reviews

Does it have good sound?
9.1
8.9
Does it work smoothly in everyday use?
9.6
9.1
What's your experience been with demanding games?
9.5
8.2
Number of reviews
38 reviews
62 reviews

Camera

Main
No. of cameras Triple rear camera Triple rear camera
1
Camera type

Standard

Standard
Resolution 48 Mpx 12 Mpx
Sensor Sony IMX689 Sony IMX555
Type CMOS CMOS
Aperture ƒ/ 1.79 ƒ/ 1.8
ISO -- --
Pixel size 1.12 µm 1.80 µm
Pixel Binning 1-4 (2x2) --
Sensor size 1/1.4" 1/1.76"
2
Camera type

Wide Angle lens

Wide Angle + Macro
Resolution
50 Mpx
12.2 Mpx
Sensor
Sony IMX766
Sony IMX563
Type
CMOS
CMOS
Aperture
ƒ/ 2.2
ƒ/ 2.2
Pixel size
1.00 µm
1.40 µm
Pixel Binning
1-4 (2x2)
--
Sensor size
1/1.56"
1/2.55"
3
Camera type

Black & white

Telephoto + portrait
Resolution
2 Mpx
64 Mpx
Sensor
Unknown
Samsung Bright S5KGW2
Type
--
ISOCELL
Aperture
ƒ/ 2.4
ƒ/ 2.0
Pixel size
--
0.80 µm
Pixel Binning
--
--
Sensor size
--
1/1.72"

Features
Flash Dual LED LED
Optical Stabilisation No Yes
Slow Motion Video Yes,
480 fps 		Yes,
960 fps
Others
  • 4K Video
  • 8K Video
  • Digital zoom
  • Triple camera
  • Digital image stabilization
  • Ultra stable video
  • Autofocus
  • Touch focus
  • Manual focus
  • Phase detection autofocus (PDAF)
  • Contrast detection autofocus (CDAF)
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Night Mode
  • RAW 12 bits
  • 4K Video
  • 8K Video
  • Digital zoom
  • Optical zoom
  • Triple camera
  • Digital image stabilization
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Continuous autofocus
  • Manual focus
  • Phase detection autofocus (PDAF)
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW
  • Night Mode

Selfie
SELF
Camera type

Dedicated

Dedicated
Resolution 16 Mpx 10 Mpx
Sensor Sony IMX471 Exmor RS Sony IMX374
Type CMOS CMOS
Aperture ƒ/ 2.4 ƒ/ 2.2
Pixel size 1.00 µm 1.22 µm
Pixel Binning 1-4 (2x2) --
Sensor size 1/3.13" 1/3.2"
Others
--
--

DxOMark Score
DxOMark Score --
111
Mobile
118
Photo
90
Video
132
Selfie
125
Photo
145
Video

User reviews

Quality of daytime photos
9.5
9.5
Quality of nighttime photos
8.8
8.6
Quality of selfies
8.7
8.9
Does it have a powerful flash?
8.7
9.0
Number of reviews
38 reviews
62 reviews

Connectivity

Network compatibility

5G
  • n1 (2100)
  • n3 (1800)
  • n5 (850)
  • n7 (2600)
  • n8 (900)
  • n20 (800)
  • n28b (700)
  • n28a (700)
  • n38 (2600)
  • n40 (2300)
  • n41 (2500)
  • n66 (1700)
  • n77 (3700)
  • n78 (3500)
  • n1 (2100)
  • n3 (1800)
  • n5 (850)
  • n7 (2600)
  • n8 (900)
  • n20 (800)
  • n28b (700)
  • n28a (700)
  • n38 (2600)
  • n40 (2300)
  • n41 (2500)
  • n66 (1700)
  • n77 (3700)
  • n78 (3500)
4G LTE
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B32 (1500)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B32 (1500)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
3G
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B9 (1800 Japan)
  • B19 (800)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card
Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM

Wi-Fi
Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • WiFi 6 (802.11ax)
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • WiFi 6 (802.11ax)
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Wi-Fi MiMO
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

Bluetooth
Version Bluetooth 5.2 LE Low energy consumption Bluetooth 5.0 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)
  • APT-x
  • LDAC
  • SBC
  • AAC
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HSP (Headset Profile)
  • LE (Low Energy)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • ANT+
  • APT-x
  • SBC

Navigation
Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo
  • GPS (L1+L5)
  • BeiDou (B1)
  • Galileo (E1+E5a)
  • BeiDou (B2)
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo
  • GPS (L1+L5)
  • Galileo (E1+E5a)

USB
USB
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.1
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.1

SAR
European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

 -- 0.460 W/Kg on head
1.510 W/Kg on body
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

 -- --

Others
Others
  • NFC
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • NFC
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • ANT+

User reviews

Does it have good coverage for calls?
9.6
8.9
Quality of the GPS
9.5
9.1
And the WiFi?
9.3
9.1
Number of reviews
38 reviews
62 reviews

Battery

Battery
Capacity
4500 mAh
See more details
4000 mAh
See more details
Type Li-Polymer Li-Polymer
Fast charge Yes,
65.0W 		Yes,
25.0W
Others
  • Wireless charging
  • Non-removable
  • Wireless charging
  • Reverse charging
  • Non-removable

User reviews

How long does the battery last?
  • 3%
    Less than half day
  • 32%
    Less than a day
  • 29%
    One day
  • 32%
    More than one day
  • 5%
    Two days or more
  • 8%
    Less than half day
  • 40%
    Less than a day
  • 37%
    One day
  • 11%
    More than one day
  • 3%
    Two days or more
Number of reviews
38 reviews
62 reviews

Software

Software
Operating System
  • OxygenOS 13 (Android 13)
    Android 13 Tiramisu, 1 year ago
  • Android 14
    Android 14 Upside-down cake, 7 months ago
Google Services (official) Yes Yes

User reviews

Did it come with preinstalled applications?
  • 16%
    It comes with a clean operating system
  • 68%
    It has preinstalled apps but they don't bother me
  • 16%
    It has preinstalled apps that I can't uninstall
  • 2%
    It comes with a clean operating system
  • 87%
    It has preinstalled apps but they don't bother me
  • 12%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 3%
    Never
  • 3%
    Once a year
  • 27%
    Every six months
  • 68%
    Every two months or less
  • 0%
    Never
  • 2%
    Once a year
  • 33%
    Every six months
  • 66%
    Every two months or less
Number of reviews
38 reviews
62 reviews
Prices
From $ 300 --
From $ 243 --

Others

Common comparisons