Galaxy S21+ 5GSilver • 128 GB • Physical SIM + eSIM
(4,366 reviews)
£255.00
before trade-in
Save £797.15
Free delivery by 12 - 13 Aug
Express delivery by 11-12 Aug from £5.00
United States
English (US)
All guaranteed 100% functional









Compatible charging cable

Refurbished price:£255.00
£1,052.15 newVersus £1,052.15 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 14/10/2024, United Kingdom.
Bought the Samsung S21+ for my son's birthday. Ordered it Friday arrived the very next day by 10 am! I did pay for the £5 extra delivery charge and was super impressed by how quick it arrived considering it was stating it would arrive on Monday. I was also very pleased with the condition and battery life on the phone. It far exceeded my expectations. Will definitely be buying from you again in the near future. Thanks again for a nice quick and easy transaction... 😊
Galaxy S21+ 5G 128GB - Black - Unlocked
Galaxy S21+ 5G 128GB - Black - Unlocked
Condition
Excellent
Purchased
10/10/2024
Reviewed 23/03/2025, United Kingdom.
I love my new S21 plus phone. It arrived in perfect condition. The battery is good so far. The delivery was very fast. This is my second phone from Backmarket and whenever I want to buy a phone in the future I will buy it from them.
Galaxy S21+ 5G 256GB - Pink - Unlocked
Galaxy S21+ 5G 256GB - Pink - Unlocked
Condition
Good
Purchased
11/03/2025
12 megapixelsMain camera
Phantom silverColour (official name)
YesCompatible with latest Update
0.54SAR head
SM-G996BManufacturer Ref
Galaxy S21+ 5GModel
Samsung Galaxy SSerie
128 GBStorage
10 megapixelsFront camera
The Samsung Galaxy S21+ 5G is a well-rounded smartphone that combines a sleek design with robust performance. Released in January 2021, this device remains a strong contender in the smartphone market, offering features that cater to both casual users and tech enthusiasts.
Key features:The Samsung Galaxy S21+ 5G is ideal for users looking for a premium smartphone experience without opting for the latest model. It suits professionals needing reliable performance for work tasks, as well as content creators who appreciate the advanced camera capabilities. Its large display also makes it a great choice for media consumption.
Pros & Cons:| Pros | Cons |
|---|---|
| Stunning display with vibrant colours and high refresh rate. | No expandable storage option available. |
| Versatile camera system for various photography needs. | Battery life may not last as long as newer models. |
Choosing a refurbished Samsung Galaxy S21+ 5G allows you to enjoy premium features while being eco-conscious. Each device goes through rigorous testing to ensure quality and reliability. Learn more about our quality standards.




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