Galaxy S21 5G

Name: Galaxy S21 5G
Brand: Samsung
Price: 142.00 GBP
Availability: InStock
Rating: 4.3 (19031 reviews)

(19,031 reviews)

£142.00

before trade-in

Save £687.00

Free delivery by 7 - 8 Jul

Restored professionally

Based on up to 100-points of inspection

Often bought together

Galaxy S21 5G

Purple • 128 GB • Dual Physical SIM + eSIM

Refurbished price:£142.00

Versus £829.00 new

Case Galaxy S21 5G and 2 protective screens - Silicone - Transparent

Refurbished price:£23.99

Total price: £165.99

These items might be sold and delivered by different sellers.

Pairs well with

Case Galaxy S21 5G and 2 protective screens - Silicone - TransparentBrand new
(160)
Refurbished price:£23.99
Case Galaxy S21 5G and 2 protective screens - TPU - BlueBrand new
(33)
Refurbished price:£23.99

Customer reviews for Galaxy S21 5G

Overall rating

19,031 verified reviews

Rating details

Accessories
4.1/5
Appearance
4.5/5
Battery
4/5
Lens & Camera
4.5/5
Overall performance
4.2/5
Packaging
4.5/5
Shipping
4.6/5

Reviews

Al B.
Verified purchase
Reviewed 17/04/2026, United Kingdom.
Phone is in excellent condition, much better than i was expecting, I can't find a single scratch on the phone, working great, came well packaged, quick shipping to Ireland, I highly recommend this site 🌟🌟🌟🌟🌟
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
14/04/2026
Denise R.
Verified purchase
Reviewed 18/06/2026, United Kingdom.
phone was in great condition looked like a new phone and I liked the colour only draw back was after setting it up had to give it at least 8 software updates now phone is working like it should but I would still buy another phone from this company if I needed one their alot cheaper than some of these shops that sell used phones
Galaxy S21 5G 128GB - Purple - Unlocked
Galaxy S21 5G 128GB - Purple - 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
02/06/2026
Jenny B.
Verified purchase
Reviewed 08/06/2026, United Kingdom.
Condition said it was fair but its near on perfect. Bought for my mum who is in her 80s, easy for her to navigate her way round and easy for her to use. This is the 3rd time buying from this site, wouldn't buy phones from anywhere else now. Thankyou. 😀
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - 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
24/05/2026
Matthew S.
Verified purchase
Reviewed 26/04/2026, United Kingdom.
I was a little nervous to order a refurbished phone but I've gotta say this honestly feels like brand new! There's only minor signs of wear and tear on the main body but other than that it's pretty much perfect!
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - 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
13/04/2026
Colette A.
Verified purchase
Reviewed 25/05/2026, United Kingdom.
Fantastic. Delivered quicker than date advised and although the product was said to be in fair condition, I would describe it as excellent! Have used back market a couple of times now and have advised others to do the same.
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - 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
11/05/2026
Dawn W.
Verified purchase
Reviewed 06/06/2025, United Kingdom.
Fabulous phone, arrived very quickly, chose a refurbished s21 and the condition is amazing I love it I've used back market before and I'll be using it in the future as well as recommending it to everyone I know 👌
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - 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
22/05/2025
Jane A.
Verified purchase
Reviewed 15/11/2024, United Kingdom.
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.
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - Unlocked
See item
Condition
Premium
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
13/09/2024

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

Durability
Overall performance
Camera
Screen quality

15.17 cmHeight
8 GBMemory (GB)
PurpleColour
2021Year of Release
YesCompatible with latest Update
NoSD Card Slot
SM-G991B/DSManufacturer Ref
NoFoldable
Dynamic AMOLED 2XScreen type

The Samsung Galaxy S21 5G is a flagship smartphone that combines cutting-edge technology with a sleek design. Released in January 2021, this model remains a strong contender in the smartphone market, offering impressive features and performance.

Key features:

Display: 6.2-inch Dynamic AMOLED 2X, FHD+ resolution
Processor: Exynos 2100 (International) or Snapdragon 888 (USA)
Camera: Triple rear camera system with 12MP wide, 64MP telephoto, and 12MP ultra-wide lenses
Connectivity: 5G capable for ultra-fast internet access
Operating System: Ships with Android 11, upgradable to later versions

Who is this for?

The Galaxy S21 5G is ideal for users who seek a powerful smartphone with a vibrant display and excellent camera capabilities. It suits professionals, content creators, and anyone who enjoys multimedia consumption on the go.

Pros & Cons:

Pros	Cons
Stunning display with vibrant colours and deep blacks.	No expandable storage option.
Excellent camera performance for photography enthusiasts.	Battery life may not last a full day under heavy use.

Why refurbished?

Choosing a refurbished Samsung Galaxy S21 5G allows you to enjoy high-end features without the brand-new price tag. Back Market ensures each device is thoroughly tested and certified for quality. Learn more about our quality standards.

Height: 15.17 cm
Memory (GB): 8 GB
Colour: Purple
Year of Release: 2021
Compatible with latest Update: Yes
SD Card Slot: No
Manufacturer Ref: SM-G991B/DS
Foldable: No
Screen type: Dynamic AMOLED 2X
SAR body: 1.51
SAR body part: 1.51
Carrier compatibility: Unlocked
Resolution: 1080 x 2400
Front camera: 10 megapixels
Weight: 169 g
Main camera: 12 megapixels
Depth: 0.79 cm
Width: 7.12 cm
Model: Galaxy S21 5G
SAR head: 0.46
Screen size (in): 6.2
Storage: 128 GB
Brand: Samsung
Mobile network: 5G
Serie: Samsung Galaxy S
OS: Android
SIM card: Dual Physical SIM + eSIM
Colour (official name): Phantom violet

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Galaxy S21 5G

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Customer reviews for Galaxy S21 5G

Overall rating

Rating details

Reviews

Reviews

Al B.

Denise R.

Jenny B.

Matthew S.

Colette A.

Dawn W.

Jane A.

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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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