• 1-year minimum warranty
  • Free delivery on all items
  • Free 30-day returns
  • Awesome customer service

Refurbished Samsung Galaxy S21

Buy the Samsung Galaxy S21 refurbished from Back Market and get it up to 60% cheaper than the retail price. Browse our cheap Samsung S21 deals and enjoy premium performance, a high-resolution triple camera system and a vibrant AMOLED display.
16 products
Best Seller
Galaxy S21 5G

Galaxy S21 5G

128 GB - Grey - Unlocked

Warranty: 12 months
4.1/5
(1712)
Starting at
£167.61
£1,026.00 new
Best Seller
Galaxy S21 5G

Galaxy S21 5G

128 GB - Purple - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£169.00
£829.00 new
Best Seller
Galaxy S21 5G

Galaxy S21 5G

128 GB - Purple - Unlocked

Warranty: 12 months
4.1/5
(1712)
Starting at
£182.99
£932.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Grey - Unlocked

Warranty: 12 months
4.1/5
(1740)
Starting at
£192.00
£1,259.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - White - Unlocked

Warranty: 12 months
4.1/5
(1751)
Starting at
£199.00
£1,026.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - Pink - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£239.19
£1,000.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - White - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£252.00
£1,099.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - White - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£210.00
£933.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Purple - Unlocked

Warranty: 12 months
4.1/5
(1740)
Starting at
£208.00
£1,125.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Pink - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£242.00
£1,125.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - Pink - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£181.00
£932.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Purple - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£251.00
£1,121.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Grey - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£250.00
£1,094.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Pink - Unlocked

Warranty: 12 months
4.1/5
(1711)
Starting at
£215.00
£880.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - White - Unlocked

Warranty: 12 months
4.1/5
(1740)
Starting at
£228.00
£799.00 new
UK - Trade In

Refurbished Samsung Galaxy S21's customer reviews

4.1/5

1,752 verified reviews in the last 6 months.

  • R

    Richard N.

    Purchased on the 6 April 2024

    4.9/5

    Well I must say I was a little dubious ordering a refurbished phone but honestly I'm more than happy with it. You wouldn't know it was refurbished at all. I went for the excellent condition samsung s21 and it's perfect and £95 cheaper than anywhere else offering the same phone.

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 5G 128GB - Grey - Unlocked
  • H

    Howard S.

    Purchased on the 10 April 2024

    4.9/5

    Arrived quickly. Condition (pristine) was accurate - no marks or scratches. Set-up was fine just like a new phone (fairly easy with Samsung Smart Switch). Battery condition is good - retains charge well. A bargain compared to a new phone - and I prefer to use refurbished equipment as long as the condition, price and technology meet my needs. Full marks (so far).

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 5G 256GB - Grey - Unlocked - Dual-SIM
  • T

    Tom S.

    Purchased on the 1 June 2024

    4.8/5

    Was a bit worried using Back Market for the first time but I’m glad I did. Order came in excellent condition as described. Far cheaper than I would have gotten anywhere else and fact that I purchased refurbished is greatl . Definitely recommend and definitely sticking to buying from here .

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 5G 128GB - Grey - Unlocked
  • S

    Stephanie J.

    Purchased on the 9 December 2023

    5/5

    Phone was absolutely immaculate, excellently refurbished. No scratches, not chips, everything looked brand new. Battery life is fantastic as well, and it even came with a phone case so I could protect it straight away. Very pleased!

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 5G 128GB - Purple - Unlocked
  • C

    Ceri D.

    Purchased on the 14 March 2024

    5/5

    I cannot fault backmarket at all. Great service the phone is like new. As a 1st time getting anything refurbished i was a bit sceptical bit i can honestly say i will never buy a new phone again i will go here and i willtell everyone to use the site .

    Reviewed in United Kingdom on 27 March 2024

    Galaxy S21 5G 128GB - Grey - Unlocked - Dual-SIM
  • G

    Gemma O.

    Purchased on the 13 February 2024

    5/5

    I ordered this phone after my previous phone died with no warning and I wasn't financially prepared for it. I was highly surprised with the condition of the phone. I ordered one in "Very Good" condition and it really was in very, very good condition. The only slight imperfection was on the back camera surround, and I mean it was minuscule. As I always have a case on my phones, it is covered and a none issue. The phone runs like it is brand-new and the set up was flawless. I haven't noticed any problems with the battery life. I have given it a month of use before leaving my review so I could leave an honest one. I'm genuinely impressed and will definitely be buying refurbished in the future, as well as from this seller.

    Reviewed in United Kingdom on 8 March 2024

    Galaxy S21 5G 128GB - Grey - Unlocked - Dual-SIM
  • G

    Gajulu guru P.

    Purchased on the 7 June 2024

    4.9/5

    Its in amazing condition . Would have been happiest if was a bit cheaper but still im satisfied . No doubts about genuineness of device or quality of refurbishment !

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 5G 128GB - Purple - Unlocked
  • J

    Jay R.

    Purchased on the 28 March 2024

    5/5

    Turned up like brand new! absolutely over the moon! have recommended back market to anyone looking for anything refurbished

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 5G 128GB - White - Unlocked - Dual-SIM
  • M

    Matty S.

    Purchased on the 26 March 2024

    5/5

    Very good service and phone was immaculate when recieved. I can highly recommend this company for refurbished devices

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 5G 256GB - Grey - Unlocked - Dual-SIM
  • T

    Tab G.

    Purchased on the 8 March 2024

    4.9/5

    I find this company to be conscientious, with good value for money and good quality refurbished items.

    Reviewed in United Kingdom on 18 March 2024

    Galaxy S21 5G 128GB - Purple - Unlocked - Dual-SIM
See all 1,752 reviews

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Searches so popular you can't sit with them

Benefits of buying a refurbished Samsung Galaxy S21


At Back Market, customers save up to 50% off compared to the price of new on certified refurbished Samsung Galaxy S21 models. The best part is, you don't have to sacrifice performance quality in order to save money; all refurbished devices on our marketplace have been fully reconditioned, cleaned, inspected and tested to the same standards as a new one. This is the biggest difference between buying a used or second hand Samsung Galaxy S21 compared to a refurbished one.

Buying a reconditioned Samsung Galaxy S21 is also an environmentally friendly option. A refurbished Samsung Galaxy S21 is often a second hand device that has been restored and updated to meet manufacturer standards, which means you'll be helping to keep old Samsung Galaxy S21s out of our landfills, reduce electronic waste, and minimise your carbon footprint.

 

What is the best Samsung smartphone?

 

Where to find a cheap refurbished Samsung Galaxy S21?


If you're looking for cheaper Samsung Galaxy S21 options and don't want to pay full price, you'll find the biggest selection, highest product quality and lowest prices on restored Samsung Galaxy S21 models at Back Market. That's because we specialise specifically in refurbished tech and take the time to carefully vet every seller on our marketplace to ensure customers are getting reliable devices that perform like-new. We have several refurbed Samsung Galaxy S21 in price ranges to fit almost anyone's budget.

Staying true to our brand, we're also a huge advocate for environmental change. In fact, at the beginning of 2023, we hit a milestone for preventing 1 million tons of carbon emission (CO2e) from entering the atmosphere. You can help contribute to a better circular economy when you shop Samsung Galaxy S21 deals on our platform.

 

What to expect when buying a refurbished Samsung Galaxy S21?


If you're a first time refurbished buyer, you might not be sure what to expect from your purchase. First, understand that your Samsung Galaxy S21 may have external cosmetic flaws depending on the condition you choose (Back Market offers devices of Fair, Good and Excellent quality). However, whatever the condition, any external blemishes will not affect the performance of your Samsung Galaxy S21 and you can expect your device to perform as if it were newly opened directly from the store.

You should also be confident that your Samsung Galaxy S21 is backed by a 1-year warranty, meaning in the rare case that any defects arise (outside of accidental damage) within 12 months of your delivery date, then you're entitled to your choice of a repair, replacement or reimbursement.

 

Samsung Galaxy S21 warranty and return policy with Back Market


All Samsung Galaxy S21 purchases on Back Market come with free standard shipping, a 1-year warranty, and a 30-day money-back guarantee. We want to make sure you can shop with confidence and find the best Samsung Galaxy S21 for your needs at lower prices.

 

Samsung Galaxy S21 key features

 

The S21 is an excellent choice if you want a premium smartphone with powerful performance. This phone's display is 6.2 inches, and it has an amazing 120hz refresh rate and Flat FHD+ resolution that looks great in day-to-day use. It comes with a base 128GB of storage space for storing photos and videos from all those fun trips and memories with friends and family. The battery life is also fantastic thanks to a 4000mAh battery that provides up to 68 hours of audio playback. Finally, the refurbished Samsung Galaxy S21 will allow you to capture the best moments of your life thanks to the 12MP ultrawide and wide-angle cameras plus a 64MP telephoto camera and up to 30x space zoom.

With the Samsung Galaxy S21, you get all of the features of any modern smartphone with none of the drawbacks. With a beautiful display, great battery life, plenty of storage space, and amazing camera system, this device will keep up with any user's needs. Buy a refurbished S21 from Back Market and get all this without breaking the bank.