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Galaxy S21 5G
  • +2 more colours

Refurbished Samsung Galaxy S21 5G

4.2/5
(4,196 reviews)
Starting at
£172.00before trade-in
£1,026.00 newSave £854.00
See options
  • 1-year minimum warranty
  • Free delivery on all items
  • Free 30-day returns
  • Excellent customer support

All Galaxy S21 (5G) options

Buy a certified refurbished Samsung Galaxy S21...

15 products
Best Seller
Galaxy S21 5G

Galaxy S21 5GGrey - 128 GB - Physical SIM + eSIM

4.2/5
(4196)
Starting at
£172.00
£1,026.00 new
Best Seller
Galaxy S21 5G

Galaxy S21 5GGrey - 128 GB - Dual Physical SIM + eSIM

4.2/5
(4207)
Starting at
£173.30
£859.00 new
Best Seller
Galaxy S21 5G

Galaxy S21 5GPurple - 128 GB - Physical SIM + eSIM

4.2/5
(4197)
Starting at
£172.00
£932.00 new
Galaxy S21 5G

Galaxy S21 5GPurple - 128 GB - Dual Physical SIM + eSIM

4.2/5
(4207)
Starting at
£177.53
£829.00 new
Galaxy S21 5G

Galaxy S21 5GGrey - 256 GB - Dual Physical SIM + eSIM

4.2/5
(4204)
Starting at
£229.99
£1,259.00 new
Galaxy S21 5G

Galaxy S21 5GWhite - 128 GB - Physical SIM + eSIM

4.2/5
(4196)
Starting at
£175.99
£1,026.00 new
Galaxy S21 5G

Galaxy S21 5GWhite - 128 GB - Dual Physical SIM + eSIM

4.2/5
(4208)
Starting at
£200.62
£1,099.00 new
Galaxy S21 5G

Galaxy S21 5GPink - 128 GB - Physical SIM + eSIM

4.2/5
(4204)
Starting at
£179.70
£932.00 new
Galaxy S21 5G

Galaxy S21 5GGrey - 256 GB - Physical SIM + eSIM

4.2/5
(4204)
Starting at
£201.99
£1,094.00 new
Galaxy S21 5G

Galaxy S21 5GPurple - 256 GB - Physical SIM + eSIM

4.2/5
(4201)
Starting at
£200.00
£1,121.00 new
Galaxy S21 5G

Galaxy S21 5GPink - 128 GB - Dual Physical SIM + eSIM

4.3/5
(4215)
Starting at
£201.83
£1,000.00 new
Galaxy S21 5G

Galaxy S21 5GPurple - 256 GB - Dual Physical SIM + eSIM

4.2/5
(4327)
Starting at
£230.36
£1,125.00 new
Galaxy S21 5G

Galaxy S21 5GPink - 256 GB - Dual Physical SIM + eSIM

4.2/5
(4196)
Starting at
£190.21
£1,125.00 new
Galaxy S21 5G

Galaxy S21 5GWhite - 256 GB - Physical SIM + eSIM

4.2/5
(4208)
Starting at
£225.08
£933.00 new
Galaxy S21 5G

Galaxy S21 5GPink - 256 GB - Physical SIM + eSIM

4.2/5
(4198)
Starting at
£233.53
£880.00 new
UK - Trade-in post Xmas 2024

Refurbished Samsung Galaxy S21 5G: customer reviews

4.2/5

4,354 verified reviews in the last 12 months.

  • J

    Jane A.

    Purchased on the 13 September 2024

    5/5

    Thankyou BackMarket you made my purchase thr best decision i have made when it come to choosing my phone. The phone arrived quickly even though it was a refurbished one it looked brand new, the phone was i pristine condition and works perfictly, I would definatly recommend to anyone.

    Reviewed in United Kingdom on 9 December 2024

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

    Amy W.

    Purchased on the 12 September 2024

    5/5

    I've used Back market for tech over the last 2-3 years now and have always found it to be great. Good choice of products, wide variety of condition and price, something for every budget. Quick service, reliable, even when there's a problem its dealt with quickly and efficiently. I have been highly recommending you to all my and friends. Buying reconditioned products is good for the environment and that's really important to me. 5 star products with great customer service and good for the planet.

    Reviewed in United Kingdom on 9 December 2024

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

    Beryl M.

    Purchased on the 30 October 2024

    5/5

    I treated mysel to a new phone last year for my birthday and After a couple of weeks I hated it, it was like a brick but stuck it out as long as I could till I couldn't stand it any more so decided to treat myself again this year. After being a little dubious about refurbished phones, I did some research and decided to go with Back market and so pleased I did its a S21 wasn't sure what rate to go for and settled on good I thought I can live with a few scratches witch hopefully wouldn't show under a case. Wow what a surprise it came within 48 hrs and is immaculate looks brand new. I absolutely love it thank you back market I've recommended you already and will be back 😀 I don't know about 5* I give you 10 🥰

    Reviewed in United Kingdom on 9 December 2024

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

    Sarah W.

    Purchased on the 7 December 2024

    4.5/5

    Bought my first refurbished phone as a gift and got to say it probably won't be my last purchase. The phone was rated as good condition, but I would say it was more in excellent condition. Other than not having the original box the phone was in near pristine, I say near because there was one tiny and I mean tiny imperfection on the casing, but don't let this put you off as I had to look hard to find it!! Well worth the money on looks alone. I can't comment on the functionality because as I say it is a gift so I won't know about that till after Christmas :).

    Reviewed in United Kingdom on 11 December 2024

    Galaxy S21 5G 128GB - Pink - Unlocked - Dual Physical SIM + eSIM
  • W

    William T.

    Purchased on the 4 November 2024

    4/5

    Good range of choice, well described quality of refurbished products and tast delivery.... tge new phone was up abd running way quicker than a) I expected or b) my network supplier would have managed 👍🏻😁

    Reviewed in United Kingdom on 9 December 2024

    Galaxy S21 5G 128GB - Purple - Unlocked - Dual Physical SIM + eSIM
  • 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 9 December 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 9 December 2024

    Galaxy S21 5G 256GB - Grey - Unlocked - Dual Physical SIM + eSIM
  • 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 9 December 2024

    Galaxy S21 5G 128GB - White - Unlocked - Dual Physical SIM + eSIM
  • S

    Surendra singh J.

    Purchased on the 16 October 2024

    5/5

    I bought samsung S21 The device is very good working I have no any problem. Backmarket is good platform for purchase refurbished mobile thank you.

    Reviewed in United Kingdom on 9 December 2024

    Galaxy S21 5G 128GB - Grey - Unlocked - Dual Physical SIM + eSIM
  • 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 9 December 2024

    Galaxy S21 5G 128GB - Grey - Unlocked
See all 4,354 reviews

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Benefits of buying a refurbished Samsung Galaxy S21 5G


At Back Market, customers save up to 50% off compared to the price of new on certified refurbished Samsung Galaxy S21 5G 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 5G compared to a refurbished one.

Buying a reconditioned Samsung Galaxy S21 5G is also an environmentally friendly option. A refurbished Samsung Galaxy S21 5G 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 S21 5Gs 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 5G?


If you're looking for cheaper Samsung Galaxy S21 5G 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 5G 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 5G 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 5G deals on our platform.

 

What to expect when buying a refurbished Samsung Galaxy S21 5G?


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 5G 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 5G 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 5G 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 5G warranty and return policy with Back Market


All Samsung Galaxy S21 5G 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 5G for your needs at lower prices.

 

Remarkable features of the refurbished Galaxy S21 5G

 

The Samsung Galaxy S21 5G has a next-generation camera that lets you capture every moment. It has a 64MP camera system that you can zoom in on to take your best shots. If you want to take selfies, the device has a 10MP front-facing camera that delivers crisp and clear selfies. With the camera and 8K video snap, you can create shareable videos with a single shot.
The Galaxy S21 5G has 8GB of RAM and 5G connectivity, making it a high-performance device. Whether you're connecting with friends, browsing, streaming content or playing games, the 5G speed makes every activity smooth. You can also run multiple apps at once without sacrificing speed.
The Samsung Galaxy 21 5G may be the smallest device in the range, but its display is big enough to show everything brilliantly and slimly. It has a 6.2-inch display that lets you scroll, watch videos and play games without straining your eyes. The device has a 4,000 mAh battery that will keep your phone running all day. The device has an AI and 5nm technology processor that makes it efficient and improves battery life. After taking exciting photos and videos, you can store them on the 128GB internal memory. The memory is also big enough to store all your apps, songs and important documents.

 

What accessories are included with my used Samsung Galaxy 21 5G devices?

 

Your device will include everything you need, including a compatible charging cable, an ejector pin and paperwork. You won't find a power adapter and a pair of headphones, though, as they contribute to e-waste.

 

Deciding between the Samsung Galaxy S21 and something else?

 

We understand phones are a big decision, which is why we've created a smartphone comparison tool that can help you remove all the noise and base your decision on specifications alone. We also have some Galaxy S21 comparisons below as a quick reference:

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