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Galaxy S21 5G
- Fair
- 128 GB
- Dual Physical SIM + eSIM
- Grey
€195.00
Save €664.00
Proudly refurbished by Alloccaz (France)
Free delivery by 28 - 29 Oct
Comes with
Compatible charging cable
Often bought together
Galaxy S21 5G
Grey • 128 GB • Dual Physical SIM + eSIM
Refurbished price:€195.00
€859.00 newVersus €859.00 new
Total price: €216.99
These items might be sold and delivered by different sellers.
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- 4.3/5 (6,680)Starting at
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€1,297.00newVersus €1,297.00 new
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Pairs well with
- 4.1/5 (140)Brand new
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- 4.2/5 (171)Brand new
Refurbished price:€23.99
- 4.3/5 (37)Brand new
Refurbished price:€24.99
- 4.2/5 (5)Brand new
Refurbished price:€16.00
€17.45newVersus €17.45 new
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- 2.5/5 (10)Brand new
Refurbished price:€16.95
Customer reviews for Galaxy S21 5G
Overall rating
4.3/54.3/519,371 verified reviewsRating 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
Reviews
Fiona M.
Verified purchaseReviewed 10/02/2025, Ireland.
5/5I can noy fault my experience with Back Market. I ordered the phone at 8.30 am on thursday and it was delivered to Ireland by 12pm on the Friday, the next day. The phone is perfect. Amazing quality. I will definitely buy more.
Galaxy S21 5G 256GB - Purple - Unlocked
See itemCondition
Excellent
Purchased
30/01/2025
Dolores M.
Verified purchaseReviewed 02/11/2024, Ireland.
5/5Excellent quality and delighted I had the choice of a new battery which is not on offer in other refurb websites I visited. Very happy with my purchase and will be back.
Galaxy S21 5G 128GB - Grey - Unlocked
See itemCondition
Excellent
Purchased
17/10/2024
Liam D.
Verified purchaseReviewed 12/08/2024, Ireland.
5/5Excellent all around. Site was easy to use and kept me informed of postal delivery etc. I got two o hones and they are both excellent. The description was right on the mark and I will be definitely using thus site again.
Galaxy S21 5G 128GB - Grey - Unlocked
See itemCondition
Excellent
Purchased
29/07/2024
Craig W.
Verified purchaseReviewed 26/05/2025, Ireland.
5/5Arrived fast, exactly as it was described.
Galaxy S21 5G 128GB - Grey - Unlocked
See itemCondition
Excellent
Purchased
10/05/2025
Zinta N.
Verified purchaseReviewed 13/01/2025, Ireland.
4.9/5Phone is nice , issue is no all languages looks like Chinese stile but for what need I can use it
Galaxy S21 5G 128GB - Grey - Unlocked
See itemCondition
Excellent
Purchased
04/01/2025
Ciara C.
Verified purchaseReviewed 08/09/2025, Ireland.
1/5Paid for a premium refurbished unlocked phone. When the phone came it was locked to another network. I had to return the phone leaving me with no phone for some days. I was not impressed. Will not use this site again.
Galaxy S21 5G 128GB - Grey - Unlocked
See itemCondition
Excellent
Purchased
27/08/2025
James F.
Verified purchaseReviewed 15/12/2024, Ireland.
4.9/5I'm very happy with my purchase it's in mint condition and working perfectly. I would recommend Back Market to anyone
Galaxy S21 5G 128GB - Purple - Unlocked
See itemCondition
Premium
Purchased
25/11/2024
Popular searches
Everything you ever wanted to know about the Galaxy S21 5G
Durability
Overall performance
Camera
Screen quality
7,12 cmWidth
0,456SAR head
Phantom grayColor (official name)
0,79 cmDepth
UnlockedCarrier compatibility
AndroidOS
GreyColour
USB-CConnector
6.2Screen size (in)
The Galaxy S21 5G is a powerful smartphone that combines cutting-edge technology with a sleek design. Released in January 2021, this device remains a strong contender in the smartphone market, offering 5G connectivity and impressive camera capabilities.
Key features:- Release Date: January 2021
- Display: 6.2-inch Dynamic AMOLED 2X, FHD+ resolution
- Processor: Exynos 2100 (International) / Snapdragon 888 (USA)
- Camera: Triple-camera system with 12MP ultra-wide, 12MP wide, and 64MP telephoto lenses
- Connectivity: 5G compatible for ultra-fast downloads and low-latency performance.
The Galaxy S21 5G is ideal for users looking for a high-performance smartphone with excellent camera features. It suits students, professionals, and anyone who enjoys capturing high-quality photos and videos while staying connected with the latest technology.
Pros & Cons:| Pros | Cons |
|---|---|
| Vibrant display with 120Hz refresh rate. | No expandable storage option. |
| Versatile camera system for various photography styles. | Plastic back may feel less premium than glass alternatives. |
Why refurbished?
Choosing a refurbished Galaxy S21 5G allows you to enjoy a top-tier smartphone while being eco-conscious. Each device is thoroughly inspected and tested to meet Back Market’s quality standards, ensuring reliability. Scopri di più sui nostri standard di qualità.
- Width
- 7,12 cm
- SAR head
- 0,456
- Color (official name)
- Phantom gray
- Depth
- 0,79 cm
- Carrier compatibility
- Unlocked
- OS
- Android
- Colour
- Grey
- Connector
- USB-C
- Screen size (in)
- 6.2
- Memory (GB)
- 8 GB
- Network
- 5G
- Screen type
- Dynamic AMOLED 2X
- SIM card
- Dual Physical SIM + eSIM
- Camera Type
- Triple (3x)
- SD Card Slot
- No
- Manufacturer Ref
- SM-G991B/DS
- Storage
- 128 GB
- Foldable
- No
- Serie
- Samsung Galaxy S
- Front camera
- 10 megapixels
- Brand
- Samsung
- Weight
- 169 g
- Compatible with latest Update
- Yes
- Year of Release
- 2021
- Height
- 15,17 cm
- SAR body
- 1,509
- Main camera
- 12 megapixels
- Resolution
- 1080 x 2400
- Model
- Galaxy S21 5G
Galaxy S21 5G
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