Galaxy S21 5GPink • 128 GB • Dual Physical SIM + eSIM

(18,986 reviews)

£179.80

before trade-in

Save £820.20

Free delivery by 2 - 3 Jul

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Based on up to 100-points of inspection

Customer reviews for Galaxy S21 5G

Overall rating

18,986 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
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
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
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
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
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
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
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

Dual Physical SIM + eSIMSIM card
6.2Screen size (in)
Samsung Galaxy SSerie
15,17 cmHeight
PinkColour
10 megapixelsFront camera
YesCompatible with latest Update
Triple (3x)Camera Type
1,51SAR body part

The Galaxy S21 5G is a flagship smartphone that combines sleek design with powerful performance. Released in January 2021, this model remains a strong contender in the market, offering 5G connectivity and a vibrant display for an enhanced user experience.

Key features:

Release Date: January 2021
Display: 6.2-inch Dynamic AMOLED 2X, FHD+ resolution
Processor: Exynos 2100 (International) or Snapdragon 888 (USA)
Camera: Triple rear cameras with 12MP ultra-wide, 12MP wide, and 64MP telephoto lenses
Connectivity: 5G compatible, ensuring ultra-fast downloads and low-latency performance.

Who is this for?

The Galaxy S21 5G is ideal for users who seek a high-quality smartphone for photography, streaming, and gaming. It suits professionals and everyday users alike who appreciate a balance of performance and design without needing the absolute latest model.

Pros & Cons:

Pros	Cons
Stunning display with vibrant colours and deep blacks.	No expandable storage option available.
Versatile camera system for various photography needs.	Plastic back may not appeal to all users.

Why refurbished?

Choosing a refurbished Galaxy S21 5G allows you to enjoy premium features while being environmentally conscious. Back Market ensures each device undergoes rigorous testing for quality and reliability. Learn more about our quality standards.

SIM card: Dual Physical SIM + eSIM
Screen size (in): 6.2
Serie: Samsung Galaxy S
Height: 15,17 cm
Colour: Pink
Front camera: 10 megapixels
Compatible with latest Update: Yes
Camera Type: Triple (3x)
SAR body part: 1,51
OS: Android
Main camera: 12 megapixels
Depth: 0,79 cm
Foldable: No
Storage: 128 GB
Manufacturer Ref: SM-G991B/DS
Brand: Samsung
Connector: USB-C
Resolution: 1080 x 2400
Carrier compatibility: Unlocked
Year of Release: 2021
SD Card Slot: No
SAR body: 1,509
Width: 7,12 cm
Screen type: Dynamic AMOLED 2X
Memory (GB): 8 GB
SAR head: 0,456
Mobile network: 5G
Colour (official name): Phantom Pink
Weight: 169 g
Model: Galaxy S21 5G

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Galaxy S21 5GPink • 128 GB • Dual Physical SIM + eSIM

Galaxy S21 5GPink • 128 GB • Dual Physical SIM + eSIM

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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.

Popular searches

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

Durability

Overall performance

Camera

Screen quality

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