Galaxy S21+ 5G

(4,322 reviews)

£162.00

before trade-in

Save £897.00

Free delivery by 12 - 13 Jun

Express delivery by 11-12 Jun from £5.00

Restored professionally

Based on up to 100-points of inspection

Often bought together

Galaxy S21+ 5G

Black • 128 GB • Physical SIM + eSIM

Refurbished price:£162.00

Versus £1,059.00 new

Case Galaxy S21+ 5G and 2 protective screens - Silicone - Navy blue

Refurbished price:£24.99

Total price: £186.99

These items might be sold and delivered by different sellers.

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Price drop
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Save £37.00
Last lowest price : £119.00
The lowest price for this product in this exact configuration on Back Market in the 30 days prior to 08/06/2026. This reference will update on 15/06/2026.
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Customer reviews for Galaxy S21+ 5G

Overall rating

4,322 verified reviews

Rating details

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

Reviews

Pippa T.
Verified purchase
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
See item
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
06/10/2024
Darren L.
Verified purchase
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
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
19/01/2026
David M.
Verified purchase
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
See item
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
20/02/2025
Stuart U.
Verified purchase
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
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
18/01/2026
Martyn P.
Verified purchase
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
See item
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
01/09/2025
Peter S.
Verified purchase
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
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
27/11/2023
Vic P.
Verified purchase
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
See item
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
26/10/2023

Everything you ever wanted to know about the Galaxy S21+ 5G

Durability
Overall performance
Camera
Screen quality

10 megapixelsFront camera
YesCompatible with latest Update
5GMobile network
6.7Screen size (in)
Dynamic AMOLED 2XScreen type
1.33SAR body
128 GBStorage
SamsungBrand
AndroidOS

The Samsung Galaxy S21+ 5G is a high-performance smartphone that balances cutting-edge technology with a sleek design. Released in January 2021, it remains a strong contender in the smartphone market, offering a range of features suited for both casual and power users.

Key features:

Release Date: January 2021
Display: 6.7-inch Dynamic AMOLED 2X, FHD+ resolution
Processor: Exynos 2100 (International) or Snapdragon 888 (USA)
Camera: Triple rear cameras with 64MP telephoto lens
Connectivity: 5G compatible for fast data speeds and low latency.

Who is this for?

The Samsung Galaxy S21+ 5G is ideal for users who require a powerful smartphone for photography, gaming, and multitasking. It suits professionals, content creators, and anyone who enjoys a large, vibrant display for media consumption.

Pros & Cons:

Pros	Cons
High-quality display with vibrant colours and deep blacks.	No expandable storage option available.
Versatile camera system for various photography styles.	Large size may not be suitable for all users.

Why refurbished?

Opting for a refurbished Samsung Galaxy S21+ 5G allows you to enjoy premium features while being environmentally conscious. Back Market ensures that all devices undergo rigorous testing and quality checks, so you can trust you're getting a reliable product. Learn more about our quality standards.

Front camera: 10 megapixels
Compatible with latest Update: Yes
Mobile network: 5G
Screen size (in): 6.7
Screen type: Dynamic AMOLED 2X
SAR body: 1.33
Storage: 128 GB
Brand: Samsung
OS: Android
SAR head: 0.54
Weight: 200 g
Model: Galaxy S21+ 5G
SD Card Slot: No
Resolution: 1080 x 2400
Carrier compatibility: Unlocked
Year of Release: 2021
Colour: Black
Connector: USB-C
Camera Type: Triple (3x)
SIM card: Physical SIM + eSIM
Foldable: No
Colour (official name): Phantom Black
Manufacturer Ref: SM-G996B
Serie: Samsung Galaxy S
Main camera: 12 megapixels
Memory (GB): 8 GB

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Galaxy S21+ 5G

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Customer reviews for Galaxy S21+ 5G

Overall rating

Rating details

Reviews

Reviews

Pippa T.

Darren L.

David M.

Stuart U.

Martyn P.

Peter S.

Vic P.

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Everything you ever wanted to know about the Galaxy S21+ 5G

Durability

Overall performance

Camera

Screen quality

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