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Galaxy S21 Vs OnePlus 9 Pro

Galaxy S21
Galaxy S21 Starting from €457.00
OnePlus 9 Pro
OnePlus 9 Pro Starting from €445.00

How they compare

Customer reviews

Galaxy S21 OnePlus 9 Pro
Tell us how you really feel 3/5


Galaxy S21 OnePlus 9 Pro
Width 71.2 mm 73.6 mm
Height 151.7 mm 163.2 mm
Weight 171 g 197 g
Thickness 7.9 mm 8.7 mm
Volume 85.33 cm³ 104.5 cm³


Galaxy S21 OnePlus 9 Pro
Resolution 1080 x 2400 px 1440 x 3216 px
Density 421 ppi 525 ppi
Size 6.2 inches 6.7 inches


Galaxy S21 OnePlus 9 Pro
Battery capacity 4000 mAh* 4500 mAh*
Removable battery No No
Wireless charging Yes Yes
Fast charging Yes Yes
Ultra power saving mode Yes No

*Refurbished devices sold on Back Market offer at least 85% of this maximum power


Galaxy S21 OnePlus 9 Pro
Maximum storage 256 GB 256 GB
CPU frequency 2.9 GHz 2.84 GHz
External memory slot No No
RAM capacity 8 GB 12 GB
5G support Yes Yes
LTE support Yes Yes


Galaxy S21 OnePlus 9 Pro
Front camera resolution 10 MP 16 MP
Main camera resolution 64 MP 50 MP
Multi lens Yes Yes
Optical zoom Yes Yes
Flash Yes Yes
Optical stabilization Yes Yes
Slow motion video Yes Yes
Main camera video resolution 3240 px 4320 px


Galaxy S21 OnePlus 9 Pro
Stereo speakers Yes Yes
3.5mm jack socket No No
Radio No Yes
Number of microphones 2 3

Our recent comparisons

OnePlus 9 Pro vs Samsung S21 Comparison

OnePlus 9 Pro vs Samsung S21

Relatively the equivalent of each other, the Samsung S21 and OnePlus 9 Pro are both relatively new smartphones that's equipped with many features. One has a better screen, the other has longer-lasting software support. This will help you make your choice and choose the device that best suits your needs.

Samsung S21, the best of Samsung in a compact format

With a 6.2-inch Full HD screen, the Samsung S21 is compact and comfortable to use with one hand. It weighs just 169 grams compared to 197 for its competitor, making it easy to slip into any pocket. Running on Android 11, it is scheduled to receive software and security updates until 2025. The latter will only be possible on the OnePlus 9 Pro until 2024. Like the OnePlus 9 Pro, the Samsung S21 doesn't have a memory card slot to expand its storage capacity. It comes with 256GB of storage compared to only 128GB on the OnePlus 9 Pro.

OnePlus 9 Pro, a particularly powerful screen

The OnePlus 9 Pro's screen is arguably of higher quality to the Samsung S21. With a diagonal of 6.7 inches and a Quad HD panel, the quality impresses when playing games or streaming video content. It also stands out for its fast recharging speed with its 65W charger. Half an hour of charging is enough to get a full battery life. For the Samsung S21 it will take 1-hour to reach full battery (the fast charger for the OnePlus 9 Pro is not included and must be purchased as an extra). In terms of photography, the two devices offer comparable performance.

While both are very good, these two smartphones can be separated by it's charging capabilities, screen quality and longevity of software support. The OnePlus 9 Pro is aimed at users looking for a large screen, and who wishes to charge their device very quickly. The Samsung S21 is more compact, and can easily be used with one hand plus comes with longer software support.

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