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Sell Your Samsung Galaxy S21 for Cash

Smartphonebuyback Samsung S23 trade in service is the best way to make a quick buck for your unwanted cell phone! We'll give you an instant valuation and free shipping to send us your device. Select the Galaxy S23 model you'd like to sell to get started.

SAMSUNG GALAXY S21

SAMSUNG GALAXY S21 Ultra

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Spend

Get paid by bank transfer!

It's super easy to sell your Samsung Galaxy S21 with Smartphonebuyback!

The value of your Samsung S21 trade in will depend on factors such as the storage, condition, and if it’s locked to a carrier or unlocked.

It’s super easy to sell Samsung Galaxy S21 models, just follow these steps:

  • Choose the storage and condition of your device – our three conditions are ‘Excellent’, ‘Good’ and ‘Poor’.
  • Put your device into a secure box and ship it to us for FREE!
  • We’ll pay you when your items are processed (usually the day after they arrive)!

For more information on how to sell Samsung phones or how to sell iPhone models, head over to our how it works page.

Here are some of our most popular traded in Samsung devices:

  • Sell Samsung Galaxy S10
  • Sell Samsung Galaxy S21 Plus
  • Sell Samsung Galaxy S20

Why should I sell my Samsung Galaxy S21 with Decluttr, we hear you ask? We’re rated Excellent on Trustpilot and have paid out hundreds of millions to our happy customers.

We also pay up to 33% more than carriers and we’ll lock in the best price for your Samsung Galaxy S21 for 28 days.

Recycling your cell phone helps reduce e-waste and conserve valuable materials too – it’s smart for you, smart for the planet.

Plus, our Tech Price Promise makes sure you get paid the first price we offer for your device or we’ll return it to you for FREE!

Wondering, “can I sell my phone if it’s damaged?” Our Samsung S21 trade in service includes broken devices if they are cosmetically damaged or water damaged. If you’re selling a broken device, make sure to categorize it as ‘poor’.

For more information, check out our broken phones page.

Sell your Samsung Galaxy S21 with Smartphonebuyback  today. It's smart for you... smart for the planet!

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