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

Refurbished Samsung Galaxy S21 Series

49 products
Best Seller
Galaxy S21 5G

Galaxy S21 5G

128 GB - Grey - Unlocked

Warranty: 12 months
4.2/5
(2336)
Starting at
£220.81
£1,026.00 new
Best Seller
Galaxy S21 5G

Galaxy S21 5G

128 GB - Purple - Unlocked

Warranty: 12 months
4.2/5
(2317)
Starting at
£170.00
£829.00 new
Best Seller
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

128 GB - Black - Unlocked

Warranty: 12 months
4.2/5
(747)
Starting at
£240.00
£1,149.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Grey - Unlocked

Warranty: 12 months
4.2/5
(2318)
Starting at
£190.95
£1,259.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - White - Unlocked

Warranty: 12 months
4.2/5
(2335)
Starting at
£177.76
£1,026.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - Purple - Unlocked

Warranty: 12 months
4.2/5
(2309)
Starting at
£194.00
£932.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - White - Unlocked

Warranty: 12 months
4.2/5
(2319)
Starting at
£175.00
£1,099.00 new
Galaxy S21+ 5G

Galaxy S21+ 5G

128 GB - Black - Unlocked

Warranty: 12 months
4.3/5
(463)
Starting at
£220.00
£1,059.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - Pink - Unlocked

Warranty: 12 months
4.2/5
(2392)
Starting at
£182.67
£1,000.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

256 GB - Silver - Unlocked

Warranty: 12 months
4.3/5
(707)
Starting at
£469.00
£1,598.00 new
Galaxy S21+ 5G

Galaxy S21+ 5G

256 GB - Black - Unlocked

Warranty: 12 months
4.3/5
(463)
Starting at
£295.00
£1,290.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

128 GB - Silver - Unlocked

Warranty: 12 months
4.3/5
(710)
Starting at
£198.30
£1,800.00 new
Galaxy S21 5G

Galaxy S21 5G

128 GB - Pink - Unlocked

Warranty: 12 months
4.2/5
(2319)
Starting at
£143.00
£932.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

256 GB - Black - Unlocked

Warranty: 12 months
4.3/5
(707)
Starting at
£290.00
£999.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

128 GB - Silver - Unlocked

Warranty: 12 months
4.3/5
(705)
Starting at
£299.99
£1,607.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

128 GB - Black - Unlocked

Warranty: 12 months
4.3/5
(703)
Starting at
£222.00
£1,316.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Grey - Unlocked

Warranty: 12 months
4.2/5
(2317)
Starting at
£277.00
£1,094.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

256 GB - Black - Unlocked

Warranty: 12 months
4.3/5
(705)
Starting at
£277.00
£1,250.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Pink - Unlocked

Warranty: 12 months
4.2/5
(2312)
Starting at
£290.00
£1,125.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - Purple - Unlocked

Warranty: 12 months
4.2/5
(2335)
Starting at
£298.00
£1,125.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

512 GB - Silver - Unlocked

Warranty: 12 months
4.3/5
(710)
Starting at
£320.00
£1,533.00 new
Galaxy S21+ 5G

Galaxy S21+ 5G

128 GB - Black - Unlocked

Warranty: 12 months
4.3/5
(463)
Starting at
£246.82
£1,059.00 new
Galaxy S21+ 5G

Galaxy S21+ 5G

128 GB - Silver - Unlocked

Warranty: 12 months
4.3/5
(463)
Starting at
£200.00
£1,052.15 new
Galaxy S21+ 5G

Galaxy S21+ 5G

256 GB - Silver - Unlocked

Warranty: 12 months
4.3/5
(499)
Starting at
£249.34
£1,093.00 new
Galaxy S21+ 5G

Galaxy S21+ 5G

128 GB - Purple - Unlocked

Warranty: 12 months
4.3/5
(463)
Starting at
£197.00
£1,299.99 new
Galaxy S21+ 5G

Galaxy S21+ 5G

256 GB - Purple - Unlocked

Warranty: 12 months
4.3/5
(467)
Starting at
£223.00
£1,249.00 new
Galaxy S21 5G

Galaxy S21 5G

256 GB - White - Unlocked

Warranty: 12 months
4.2/5
(2334)
Starting at
£193.03
£933.00 new
Galaxy S21+ 5G

Galaxy S21+ 5G

128 GB - Purple - Unlocked

Warranty: 12 months
4.3/5
(465)
Starting at
£186.96
£1,052.15 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G

256 GB - Dark grey - Unlocked

Warranty: 12 months
4.3/5
(719)
Starting at
£300.00
£1,578.00 new

Refurbished Samsung Galaxy S21 Series's customer reviews

4.2/5

3,674 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
  • L

    Lesley M.

    Purchased on the 11 February 2024

    4.9/5

    This is the second phone l've bought so l had high expectations. I was not disappointed! Another fast delivery and a phone in what looked like perfect condition. I'm so glad l updated and l love my Samsung Galaxy S 21. I updated mostly for the camera as l do art/ use my phone camera a lot..what a difference from my old phone. I would buy from Back Market in future again, confident l'd be getting a great service/site to buy refurbished tech.

    Reviewed in United Kingdom on 29 February 2024

    Galaxy S21+ 5G 128GB - Black - Unlocked
  • A

    Andre R.

    Purchased on the 9 February 2024

    4/5

    First time I've used back market, I admit I was uncertain if buying a refurbished phone was a good move. But with the 12mth warranty felt well they must feel confident of their phones! So I gave it a try, and so far so good. The phone was in an almost as new condition which surprised me and exceeded my expectations. Lots of communication along the way keeping me informed on delivery. I also was able to trade in an old samsung for £43 that I didnt plan on doing. I thought its at least a saving off the price I paid for the new one. So yes was pleasantly surprised and would buy again in the future that offers the chance to buy a more high end phone for a more affordable cost. If I had to make one negative, which really isnt a big issue, the deposit for the trade in takes upto 6 working days to go into a bank. But as promised I did receive the funds within the 6 working days. Otherwise, yep, liked everything.

    Reviewed in United Kingdom on 25 February 2024

    Galaxy S21 5G 128GB - White - 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
  • A

    Abimbola O.

    Purchased on the 31 March 2024

    4.4/5

    This is a fantastic phone and I totally recommend it. I was initially skeptical about buying a refurbished phone but I saw all the positive reviews and decided to give it a shot. I went for the "good" option just to be safe and I was totally satisfied with my purchase. The phone looks new with an unnoticeable scratch at the back. Other than that, it is totally worth it. I'm enjoying the phone. Thumbs up to the Back Market for their excellent customer service. I will surely come back for more. 😊

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 Ultra 5G 128GB - Silver - Unlocked - Dual-SIM
  • E

    Ellen D.

    Purchased on the 28 March 2024

    4.6/5

    I bought this phone for a better battery, there isn't much difference to my previous phone s20. However, everything else works perfectly. Really happy with my purchase, you couldn't tell it was a refurbished phone. Thanks Back Market 😁

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked - Dual-SIM
  • 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
  • S

    Steve R.

    Purchased on the 11 February 2024

    4.6/5

    No complaints whatsoever for this refurbished phone. As good as new (the alarm had an Indian accent to start with but I was able to turn the voice off after fiddling about for a bit). Well packaged and delivered on time. Phones do not seem to be evolving as fast as they did a few years back so, for me, it made sense to go for a refurbished, high end model from a few years ago. I have not been disappointed.

    Reviewed in United Kingdom on 14 March 2024

    Galaxy S21+ 5G 256GB - Black - Unlocked
See all 3,674 reviews

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