Sell my Samsung Galaxy S21, S21+, S21 Ultra, S21 FE

Are looking for a great price for your Samsung Galaxy S21 device? See what you could get by selecting the relevant model below. It only takes 30 seconds to get a quote.


How do I sell my Samsung Galaxy S21?


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Choose your Galaxy S21 from above or use our handy search to find your model. Provide a few details about the storage, network and condition of your Samsung.

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Complete your sale and package your Galaxy S21 carefully. We suggest you use bubble wrap to add that extra layer of protection during transit.

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Send your Galaxy S21 back to us. Either take your packaged device to the Post Office or arrange a Royal Mail home collection.

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Once we've received and tested your Samsung Galaxy S21, we'll process your payment and it should be with you the same day.


Why should I sell my Galaxy S21?


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Clearing out your drawers and selling unwanted or unused mobiles such as the Samsung Galaxy S21 just makes sense. These popular devices have a high value, so you can earn some extra cash and tidy op those cupboards and drawers at the same time.

We can offer you the best price for an old Galaxy S21, S21+, S21 Ultra or S21 FE. All you need to do is provide some information about your smartphone and we'll give you a no-obligation quote that's valid for 14 days...It only takes 30 seconds to do!

Recycling your Galaxy S21 phone is helping us to change the planet one phone at a time. For every device we purchase, we'll plant a tree on your behalf, so you know that you're helping to offset the carbon that mobiles have on our world, plus you get a bit of extra cash in your pocket too.


Checklist for trading your Galaxy S21


  • Backup your Galaxy S21 data - Please ensure that you backup any data and images to the cloud.
  • Remove any associated Samsung account - Make sure you remove your account from Samsung. Find out how.
  • Factory Reset your Galaxy S21 - Before packaging your Samsung phone, please factory reset your device.
  • Remove accessories - Make sure any cases, screen protectors and Sim cards are removed from your Galaxy S21
  • Clean your Galaxy S21 - Before sending your smartphone back, please give your device a good clean.

Questions about selling your Galaxy S21 


Why should I sell my Galaxy S21 with Tech Octopus?


There's a number of reasons why you should sell your S21 with The Tech Octopus:

  • We offer a great price, whether you're selling a perfect condition or even a faulty device, we'll offer you a very competitive value.
  • It's 100% FREE! Shipping your Samsung phone to us is free with our pre-paid postage labels, and if you're not happy with our valuation, we'll return your device for free.
  • Customers love us - Read our website reviews to see what customers have to say about selling with us.
  • We care about the environment and the circular economy. For every smartphone we purchase, we'll plant a tree in your name.
  • You'll be paid quickly. We aim to pay you on the same day we receive your Apple device..
  • 14-day price guarantee on every quote for Samsung Galaxy S21.
  • We use trusted diagnostic software to assess the condition and functionality of your Samsung. Find out more about our testing process.
  • We provide a Certified Data Wipe so you can be assured that your Galaxy mobile data is securely removed.

What should I do when selling my Galaxy S21?


Before you trade in your S21 phone with The Tech Octopus, follow these simple steps below to ensure a fast and simple experience:


  1. Unpair any accessories that may be connected to your device, such as a smartwatch or headphones 
  2. Backup any data and images to the cloud or a personal computer
  3. Sign out of your Samsung account. Find out how
  4. Erase all of your content and settings - Don't worry if you forget to do this as we'll wipe your device on arrival
  5. Remove any SIM/Memory cards and accessories such as cases and screen protectors
  6. Give your Galaxy S21 a clean to make sure there's no dirt that could affect our conditional checks

Do you buy broken or faulty Galaxy S21 devices?


Yes, we don't just buy brand new or great condition devices. Even if your Galaxy S21 has technical problems or more serious damage such as a smashed screen or cracked camera, we'll still offer you a great price. If you're looking to sell a broken Galaxy S21, S21+, S21 Ultra or S21 FE, please make sure you choose the correct condition when selling. 

Find out more about selling your damaged Phone.


How much is my Galaxy S21 worth?


We aim to offer competitive prices on the Galaxy S21 range along with a 5-star service. See how much you could get when you sell today.

Sell my Galaxy S21

Sell my Galaxy S21+

Sell my Galaxy S21 Ultra

Sell my Galaxy S21 FE