Galaxy S21 Vs OnePlus 9 Pro

Galaxy S21
Galaxy S21
View item
OnePlus 9 Pro
OnePlus 9 Pro
Starting from £289.97
View item

Customer reviews

Galaxy S21OnePlus 9 Pro


Galaxy S21OnePlus 9 Pro
Width71.2 mm73.6 mm
Height151.7 mm163.2 mm
Weight171 g197 g
Thickness7.9 mm8.7 mm
Volume85.33 cm³104.5 cm³


Galaxy S21OnePlus 9 Pro
Resolution1080 x 2400 px1440 x 3216 px
Density421 ppi525 ppi
Size6.2 inches6.7 inches


Galaxy S21OnePlus 9 Pro
Battery capacity4000 mAh4500 mAh
Removable batteryNoNo
Wireless chargingYesYes
Fast chargingYesYes
Ultra power saving modeYesNo

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


Galaxy S21OnePlus 9 Pro
Maximum storage256 GB256 GB
CPU frequency2.9 GHz2.84 GHz
External memory slotNoNo
RAM capacity8 GB12 GB
5G supportYesYes
LTE supportYesYes


Galaxy S21OnePlus 9 Pro
Front camera resolution10 MP16 MP
Main camera resolution64 MP50 MP
Multi lensYesYes
Optical zoomYesYes
Optical stabilizationYesYes
Slow motion videoYesYes
Main camera video resolution3240 px4320 px


Galaxy S21OnePlus 9 Pro
Stereo speakersYesYes
3.5mm jack socketNoNo
Number of microphones23

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.

Our recent comparisons

From phones to fridges, you can’t choose wrong.

Back Market only sells the highest quality refurbished items, at the best prices, risk-free.

  • Best offer on the market

    The best price and quality selected for you.

  • Real impact

    By buying refurbished, you're keeping e-waste out of landfills. Huzzah!

  • Quality guaranteed

    We ensure that the sellers we partner with maintain high standards.

  • Proper Service

    A shopping experience that meets your expectations.