Galaxy S21 Ultra 5GDark grey • 256 GB • Dual Physical SIM + eSIM

Name: Galaxy S21 Ultra 5G 256GB - Dark Grey - Unlocked
Brand: Samsung
Price: 332.00 EUR
Availability: InStock
Rating: 4.29 (6626 reviews)

(6,626 reviews)

€332.00

Save €1,266.00

Free delivery by 21 - 24 Aug

Restored professionally

Based on up to 100 points of inspection

Customer reviews for Galaxy S21 Ultra 5G

Overall rating

6,626 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
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
James R.
Verified purchase
Reviewed 01/12/2024, Ireland.
only looked at phone ,quality perfect,as I got for a xmas gift, I havent done anthing else with it. will let you know further after xmas day
Galaxy S21 Ultra 5G 512GB - Black - Unlocked
Galaxy S21 Ultra 5G 512GB - 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
19/11/2024

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

Durability
Overall performance
Camera
Screen quality

NoFoldable
AndroidOS
0.71SAR head
227 gWeight
Samsung Galaxy SSerie
Phantom titaniumColor (official name)
6.8Screen size (in)
Dynamic AMOLED 2XScreen type
NoSD Card Slot

The Galaxy S21 Ultra 5G is a flagship smartphone from Samsung that was released in January 2021. It features a premium design and top-of-the-line specifications, making it an excellent choice for users who demand high performance and advanced camera capabilities.

Key features:

Release Date: January 2021
Display: 6.8-inch Dynamic AMOLED 2X, QHD+ resolution
Processor: Exynos 2100 (International) or Snapdragon 888 (USA)
Camera: Quad-camera system with 108MP wide lens, 12MP ultra-wide, and dual 10MP telephoto lenses
Connectivity: 5G compatible for ultra-fast connectivity and low-latency performance.

Who is this for?

The Galaxy S21 Ultra 5G is ideal for professionals, photographers, and tech enthusiasts who require a powerful device with exceptional camera capabilities and a stunning display. Its advanced features make it suitable for content creators and users who enjoy gaming and multimedia consumption.

Pros & Cons: Pros Cons Stunning display with vibrant colours and high refresh rate. Large and heavy design may not be comfortable for all users. Exceptional camera system for versatile photography. High price point compared to other models.
Why refurbished?

Choosing a refurbished Galaxy S21 Ultra 5G allows you to enjoy premium features while being eco-conscious. Each device is thoroughly tested to ensure quality and reliability, meeting Back Market's high standards. Learn more about our quality standards.

Foldable: No
OS: Android
SAR head: 0.71
Weight: 227 g
Serie: Samsung Galaxy S
Color (official name): Phantom titanium
Screen size (in): 6.8
Screen type: Dynamic AMOLED 2X
SD Card Slot: No
Main camera: 108 megapixels
Brand: Samsung
Year of Release: 2021
Compatible with latest Update: Yes
Connector: USB-C + Jack 3.5mm
Storage: 256 GB
Front camera: 40 megapixels
Manufacturer Ref: SM-G998B/DS
Carrier compatibility: Unlocked
Colour: Dark grey
Camera Type: Quadruple (4x)
SAR body: 1.58
Model: Galaxy S21 Ultra 5G
SIM card: Dual Physical SIM + eSIM
Memory (GB): 12 GB
Network: 5G
Resolution: 1440 x 3200

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Galaxy S21 Ultra 5GDark grey • 256 GB • Dual Physical SIM + eSIM

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Overall rating

Rating details

Reviews

Reviews

James L.

Theresa M.

Adam D.

John D.

Corey O.

Haitam K.

James R.

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

Durability

Overall performance

Camera

Screen quality

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