Galaxy S21+ 5GBlack • 256 GB • Physical SIM + eSIM
(4,325 reviews)
£238.00
before trade-in
Save £1,052.00
Free delivery by 11 - 12 Jun
All guaranteed 100% functional









Compatible charging cable

Refurbished price:£238.00
£1,290.00 newVersus £1,290.00 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 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 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 12/03/2025, United Kingdom.
After buying a phone for a family member through Back Market and seeing the quality and service I bought one for myself. The phone arrived on time and well packaged. The device was exactly as described. This is my first refurbished phone...so far so good.👍
Galaxy S21+ 5G 128GB - Black - Unlocked
Galaxy S21+ 5G 128GB - Black - Unlocked
Condition
Good
Purchased
20/02/2025
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
Reviewed 19/09/2025, United Kingdom.
I am surprised and very pleased with the phone that I got from you. You described it as fair condition but in fact its more like very good condition thanks will be getting my next phone from you again
Galaxy S21+ 5G 128GB - Purple - Unlocked
Galaxy S21+ 5G 128GB - Purple - Unlocked
Condition
Fair
Purchased
01/09/2025
Reviewed 11/12/2023, United Kingdom.
I was looking for a replacement of my old samsung s6, I had seen back market advertised & as I didn't want to splash out for a brand new phone I gave them a try.I was a bit apprehensive about buying a refurbished phone but I needn't have worried.Phone I ordered was samsung s21+ in excellent condition & that's exactly what it came in,not a mark on it & even has original protective film on front & back,battery was at 78% but soon charged up to 100%, very well packaged & excellent delivery.Thanks back market one very happy customer 👍 10/1
Galaxy S21+ 5G 128GB - Silver - Unlocked
Galaxy S21+ 5G 128GB - Silver - Unlocked
Condition
Excellent
Purchased
27/11/2023
Reviewed 06/11/2023, United Kingdom.
The Samsung Galaxy s21plus I purchased was as described "Excellent". As good as new as far as I can tell. Delivery was on time and the product was well packaged. Very happy with my dealings with Back Market. First time I have had a refurbished phone and I would certainly purchase my next one from Back Market.
Galaxy S21+ 5G 256GB - Black - Unlocked
Galaxy S21+ 5G 256GB - Black - Unlocked
Condition
Excellent
Purchased
26/10/2023
YesCompatible with latest Update
6.7Screen size (in)
12 megapixelsMain camera
200 gWeight
SamsungBrand
Physical SIM + eSIMSIM card
Dynamic AMOLED 2XScreen type
BlackColour
SM-G996BManufacturer Ref
The Galaxy S21+ 5G is a versatile smartphone that offers a blend of performance and style. Released in January 2021, this device remains a solid choice for users seeking a high-quality Android experience with robust features.
Key features:The Galaxy S21+ 5G is ideal for professionals, content creators, and anyone who enjoys multimedia consumption on a larger screen. Its impressive camera system and vibrant display make it a great choice for photography enthusiasts and those who stream content frequently.
Pros & Cons:| Pros | Cons |
|---|---|
| Large, vibrant display for an immersive viewing experience. | No expandable storage option for additional space. |
| Solid camera performance with versatile shooting modes. | Glass back may be prone to fingerprints and cracks. |
Choosing a refurbished Galaxy S21+ 5G allows you to enjoy a premium smartphone experience while being environmentally conscious. Each device undergoes rigorous testing to ensure it meets high-quality standards. Learn more about our quality standards.






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