Galaxy S21 Ultra 5GSilver • 512 GB • Dual Physical SIM + eSIM

Name: Galaxy S21 Ultra 5G 512GB - Silver - Unlocked
Brand: Samsung
Price: 440.00 EUR
Availability: InStock
Rating: 4.29 (6584 reviews)

(6,584 reviews)

€440.00

Save €1,360.00

Free delivery by 15 - 16 Sept

Express delivery by 14-15 Sept from €5.00

Restored professionally

Based on up to 100 points of inspection

Customer reviews for Galaxy S21 Ultra 5G

Overall rating

6,584 verified reviews

Rating details

Accessories
4.1/5
Appearance
4.4/5
Battery
4.1/5
Lens & Camera
4.5/5
Overall performance
4.3/5
Packaging
4.4/5
Shipping
4.6/5

Reviews

James L.
Verified purchase
Reviewed 05/08/2026, Ireland.
I was really surprised to see my new phone was in absolute perfect condition. I really had to examine the phone thoroughly to find even the tiniest of a mark. The shipping was bang on time and the packaging was very good too. I'll definitely be using Back Market next time also.
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
24/07/2026
Theresa M.
Verified purchase
Reviewed 05/01/2025, Ireland.
Great service.. quick delivery.. ONLY gripe if I had one was that we can't use Klarna on the page, which would have made additional purchases simpler. We had to use refurbed as they do offer that service and as a household of twelve we buy a LOT of phones so would make good business sense to adopt it
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Galaxy S21 Ultra 5G 128GB - Black - 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
21/12/2024
Peter L.
Verified purchase
Reviewed 22/08/2026, Ireland.
Looks brand new, even though I ordered fair condition. Everything is perfect. Very happy with my purchase ☺️
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
15/08/2026
Adam D.
Verified purchase
Reviewed 05/04/2026, Ireland.
Amazing phone it's just like brand new im well happy with it . I'll definitely recommend back market to friends.
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
26/03/2026
John D.
Verified purchase
Reviewed 12/12/2024, Ireland.
great phone, like new. the only problem I have us when I was ordering I looked up the specs and it said it was a G988b, which is the European version firmware. I wanted this because I had already bought the same phone from refurbed.ie and they sent me a G988u1 phone, the problem was it's on US Firmware and I could not get it to update to latest firmware. they took it back and promised me a replacement but never followed through. this phone even though it's set to USA region firmware has updated ok, but only downside it's only got American English version. I think you should only sell phones that have regional based firmware to the same firmeare region. for example I should have received a Gʻ988B phone.
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Galaxy S21 Ultra 5G 128GB - Black - 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
24/11/2024
Corey O.
Verified purchase
Reviewed 17/11/2023, Ireland.
I ordered a silver 128gb S21 Ultra off this site, I got it in fair condition expecting maybe a couple of scratches or dents. the phone was in absolutely FLAWLESS condition, I had to look for anything off, nothing. best refurbished device I ever bought. I recommend Backmarket and the reseller ReMarket 100%! fast delivery and great service!
Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
14/11/2023
Haitam K.
Verified purchase
Reviewed 30/03/2025, Ireland.
My S21 ULTRA is doing great and matches the description. Thank you back market for your honesty and your service
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
14/03/2025

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

Durability
Overall performance
Camera
Screen quality

16 GBMemory (GB)
6.8Screen size (in)
2021Year of Release
NoFoldable
40 megapixelsFront camera
108 megapixelsMain camera
Samsung Galaxy SSerie
SilverColour
Dynamic AMOLED 2XScreen type

The Galaxy S21 Ultra 5G remains one of Samsung's flagship smartphones, offering an impressive array of features and specifications. Launched in January 2021, this model is designed for users who demand high performance and exceptional camera capabilities.

Key features:

Release Date: January 2021
Display: 6.8-inch Dynamic AMOLED 2X, QHD+ resolution
Processor: Exynos 2100 (International) / Snapdragon 888 (USA)
Camera: Quad-camera system with 108MP main sensor
Connectivity: 5G compatible for ultra-fast internet speeds.

Who is this for?

The Galaxy S21 Ultra 5G is ideal for professionals, content creators, and tech enthusiasts who require a powerful device for multitasking and high-quality photography. Its expansive display and advanced camera features make it a great choice for anyone who enjoys media consumption or photography on the go.

Pros & Cons: Pros Cons Stunning display with vibrant colours and high resolution. Large size may not be comfortable for one-handed use. Exceptional camera performance for photography enthusiasts. Premium price point compared to other models.
Why refurbished?

Choosing a refurbished Galaxy S21 Ultra 5G allows you to enjoy top-tier features while making an eco-conscious choice. Each device is thoroughly tested to meet high standards of quality and reliability. Learn more about our quality standards.

Memory (GB): 16 GB
Screen size (in): 6.8
Year of Release: 2021
Foldable: No
Front camera: 40 megapixels
Main camera: 108 megapixels
Serie: Samsung Galaxy S
Colour: Silver
Screen type: Dynamic AMOLED 2X
SAR head: 0,714
SIM card: Dual Physical SIM + eSIM
Storage: 512 GB
Color (official name): Phantom silver
SAR body: 1,58
Brand: Samsung
SAR body part: 2,56
Height: 16,15 cm
Resolution: 1440 x 3200
SD Card Slot: No
Weight: 227 g
Network: 5G
OS: Android
Compatible with latest Update: Yes
Model: Galaxy S21 Ultra 5G
Manufacturer Ref: SM-G998B/DS
Carrier compatibility: Unlocked
Width: 7,56 cm
Depth: 0,89 cm

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Galaxy S21 Ultra 5GSilver • 512 GB • Dual Physical SIM + eSIM

Galaxy S21 Ultra 5GSilver • 512 GB • Dual Physical SIM + eSIM

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Customer reviews for Galaxy S21 Ultra 5G

Overall rating

Rating details

Reviews

Reviews

James L.

Theresa M.

Peter L.

Adam D.

John D.

Corey O.

Haitam K.

Popular searches

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

Durability

Overall performance

Camera

Screen quality

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