Galaxy S21+ 5GBlack • 128 GB • Dual Physical SIM + eSIM
(4,439 reviews)
£166.00
before trade-in
Save £893.00
Galaxy S21+ 5GBlack • 128 GB • Dual Physical SIM + eSIM
(4,439 reviews)
£166.00
before trade-in
Save £893.00
Free delivery by 2 - 3 Nov
All guaranteed 100% functional









Compatible charging cable

Refurbished price:£166.00
£1,059.00 newVersus £1,059.00 new
Accessories
4.1/5
Appearance
4.5/5
Battery
4.2/5
Lens & Camera
4.5/5
Overall performance
4.3/5
Packaging
4.5/5
Shipping
4.6/5
Reviewed 18/09/2026, United Kingdom.
Excellent. Second time buying from Back Market and I have to say I can't fault them. Ordered a phone this time for my husband, as he smashed his old one on holiday. Buying a reconditioned one from Back Market was cheaper than getting his old one fixed. Phone arrived in perfect condition, looked brand new! I'll definitely use this company again in the future.
Galaxy S21+ 5G 128GB - Silver - Unlocked
Galaxy S21+ 5G 128GB - Silver - Unlocked
Condition
Excellent
Purchased
10/09/2026
Reviewed 20/10/2024, United Kingdom.
My first time using Back Market so was a bit apprehensive, but I'm super happy with my phone! Phone looks in perfect condition to me. Battery life seems great. Would definitely use again in the future!
Galaxy S21+ 5G 256GB - Pink - Unlocked
Galaxy S21+ 5G 256GB - Pink - Unlocked
Condition
Good
Purchased
06/10/2024
Reviewed 24/10/2026, United Kingdom.
Arrived earlier than expected. Mint condition- happy with what I got. 1 less star for the tempered glass which isn’t a perfect fit , data cable with phone was low quality and no adapter provided.
Galaxy S21+ 5G 128GB - Silver - Unlocked
Galaxy S21+ 5G 128GB - Silver - Unlocked
Condition
Excellent
Purchased
15/10/2026
Reviewed 06/02/2026, United Kingdom.
phone came one day after I ordered it and it was better than I expected. the phone looked brand new they wasn't a single mark on it and the battery was in excellent condition.. I was over the moon with this phone and this is actual the 4th device I have bought from BackMarket, with all being In great condition. id highly recommend this site over any other refurbished phone sites.
Galaxy S21+ 5G 128GB - Black - Unlocked
Galaxy S21+ 5G 128GB - Black - Unlocked
Condition
Excellent
Purchased
19/01/2026
Reviewed 22/09/2026, United Kingdom.
Considering this mobile was over £1000 when new the price I paid was a fraction of that. It looks and feels brand new. Ok it's not supported by Samsung anymore, but put decent antivirus software on it and you'll be fine. Will definitely be buying from back market again.
Galaxy S21+ 5G 128GB - Silver - Unlocked
Galaxy S21+ 5G 128GB - Silver - Unlocked
Condition
Excellent
Purchased
14/09/2026
Reviewed 22/08/2025, United Kingdom.
Quick and easy service. Phone arrived in excellent condition, looks as good as brand new! Saved thousands on a contract deal, would highly recommend!
Galaxy S21+ 5G 256GB - Silver - Unlocked
Galaxy S21+ 5G 256GB - Silver - Unlocked
Condition
Excellent
Purchased
31/07/2025
Reviewed 27/01/2026, United Kingdom.
Transaction went smoothly, quick delivery,phone in good condition ,only downside for me is that the phone is a US version ,samsung pay etc is all US version ,I do wish the refurbishment companies would put this in the description ,probably wouldn't have purchased had i known
Galaxy S21+ 5G 128GB - Black - Unlocked
Galaxy S21+ 5G 128GB - Black - Unlocked
Condition
Excellent
Purchased
18/01/2026
Triple (3x)Camera Type
USB-CConnector
1,335SAR body
0,78 cmDepth
NoSD Card Slot
NoFoldable
AndroidOS
200 gWeight
7,56 cmWidth
The Galaxy S21+ 5G is a powerful smartphone that combines a sleek design with advanced features, making it a strong contender in the competitive smartphone market. Released in January 2021, this model remains relevant with its robust performance and impressive camera capabilities.
Key features:The Galaxy S21+ 5G is ideal for users who seek a high-performing smartphone with a large, vibrant display. It's perfect for professionals, content creators, and anyone who enjoys streaming media or gaming on the go.
Pros & Cons:| Pros | Cons |
|---|---|
| Stunning display with 120Hz refresh rate for smooth scrolling. | Bulky design may not suit users looking for a compact phone. |
| Versatile camera system for various photography needs. | No expandable storage option limits storage flexibility. |
Choosing a refurbished Galaxy S21+ 5G allows you to enjoy a premium smartphone experience while making an eco-conscious choice. Back Market ensures that all refurbished devices are rigorously tested for quality and performance. Learn more about our quality standards.

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