Want to compare Samsung S21 vs OnePlus 9 mobile? You have come to the right place. Here you can find Samsung S21 vs OnePlus 9 comparison based on display size, processor speed, camera resolution, user experience, memory size, connectivity strength, and overall dimension.

Related: Check out latest Samsung S21 price in India on Priceo.

On one hand, Samsung Galaxy S21 attributes a 6.2 inch 2X Dynamic AMOLED display with a screen resolution of 1080 x 2400 pixels. Additionally, its IP68 rating provides the device with a provision of dustproof ruggedness. For selfie lovers, Samsung has placed a 10MP f/2.2 shooter under the display. Further, the high graphical gaming experience is ensured by the presence of Mali-G78 MP14 GPU backed by 8GB of RAM. The Samsung Galaxy S21 showcases a restricted storage capacity of 128GB and runs on the Android v11 operating system.

On the other hand, OnePlus 9 comes with a Fluid AMOLED type 6.55 inch display with an aspect ratio of 20:9, accompanied by a screen resolution of 1080 x 2400 pixels and a pixel density of 402ppi. Finally, its bezel-less punch-hole setup gets protected by a sturdy Corning Gorilla Glass v5.The smartphone is provided with outstanding triple cameras on its backside comprising a 48MP f/1.8 Primary Lens accompanied by adjoining 50MP f/2.2 Ultra wide-angle lens and a 2MP f/2.4 Mono Lenses, equipped with UltraPixel BSI image sensor. The smartphone is also supplied with a single 16MP f/2.4 Primary Camera. OnePlus has specifically collaborated with Hasselblad to provide a flagship-level camera experience within this particular smartphone. 

Our recommendation: We recommend you to buy OnePlus 9 over Samsung S21 because it offers a better value for money package with better camera and processor.

Samsung S21 vs OnePlus 9 Comparison Table

Key Specs
Display6.55-inch6.20-inch
ProcessorQualcomm Snapdragon 888Samsung Exynos 2100
Front Camera16-megapixel10-megapixel
Rear Camera48-megapixel + 50-megapixel + 2-megapixel12-megapixel + 12-megapixel + 64-megapixel
RAM8GB, 12GB8GB
Storage128GB, 256GB128GB, 256GB
Battery Capacity4500mAh4000mAh
OSAndroid 11Android 11
Resolution1080×2400 pixels1080×2400 pixels
 
General
BrandOnePlusSamsung
Model9Galaxy S21
Release dateMarch 23, 2021January 14, 2021
Launched in IndiaYes
Form factorTouchscreenTouchscreen
Dimensions (mm)160.00 x 73.90 x 8.10151.70 x 71.20 x 7.90
Weight (g)183.00171.00
Battery capacity (mAh)45004000
Fast chargingProprietaryProprietary
ColoursArctic Sky, Winter Mist, Stellar BlackPhantom Violet
IP ratingIP68
Wireless chargingYes
Display
Screen size (inches)6.556.20
TouchscreenYesYes
Resolution1080×2400 pixels1080×2400 pixels
Protection typeGorilla GlassGorilla Glass
Aspect ratio20:920:9
Pixels per inch (PPI)402421
Hardware
Processorocta-core2.2GHz octa-core (3×2.8GHz + 4×2.2GHz + 1×2.9GHz)
Processor makeQualcomm Snapdragon 888Samsung Exynos 2100
RAM8GB, 12GB8GB
Internal storage128GB, 256GB128GB, 256GB
Camera
Rear camera48-megapixel (f/1.8, 1.12-micron) + 50-megapixel (f/2.2) + 2-megapixel12-megapixel (f/1.8, 1.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 64-megapixel (f/2.0, 0.8-micron)
No. of Rear Cameras33
Rear autofocusYesYes
Rear flashYesYes
Front camera16-megapixel (f/2.4, 1.0-micron)10-megapixel (f/2.2, 1.22-micron)
No. of Front Cameras11
Software
Operating systemAndroid 11Android 11
SkinOxygenOS 11One UI 3.1
Connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/ax802.11 a/b/g/n/ac/ax
GPSYesYes
BluetoothYes, v 5.20Yes, v 5.00
NFCYesYes
USB Type-CYesYes
Number of SIMs22
Sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYesYes
Sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes
Sensors
In-Display Fingerprint SensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Face unlock