Galaxy S21 Ultra 5GDark Gray • 512 GB • Physical SIM + eSIM

(6,226 reviews)

€601.24

Save €1,298.76

Free delivery by 15 - 16 Jun

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Customer reviews for Galaxy S21 Ultra 5G

Overall rating

6,226 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

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
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
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
Beauty ezinne J.
Verified purchase
Reviewed 29/10/2023, Ireland.
The phone arrived on time and it's worth the price. It had just few scratches (because I selected the fair quality) which won't be visible when in a phone pouch. Overall, I'm satisfied and glad to save money while living sustainably.
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
10/10/2023
Colm D.
Verified purchase
Reviewed 11/06/2023, Ireland.
Ordered very good condition and received the phone with no scratches or any visible defects. I have the phone 4 weeks and the battery life has been perfect. The delivery of the phone was before the estimated time and used the sustainable packaging as other reviews have mentioned which is great. I will definitely be getting a refurbished phone from now on after this experience
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
28/05/2023
Mantas K.
Verified purchase
Reviewed 24/03/2024, Ireland.
I purchased the Galaxy S21 Ultra 512GB model in good condition and it did arrive in good condition indeed. Screen - mint condition. I'm very happy, only thing is I had to get a fast charger for it. Also, battery is somewhat average but in fairness I didn't expect it to be much better anyway (lasts about a day with medium usage). Shopping experience was absolutely fantastic 👌 💯 I would highly recommend this company to anyone.
Galaxy S21 Ultra 5G 512GB - Silver - Unlocked - Dual-SIM
Galaxy S21 Ultra 5G 512GB - Silver - Unlocked - Dual-SIM
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
12/03/2024

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

Durability
Overall performance
Camera
Screen quality

Quadruple (4x)Camera Type
Dynamic AMOLED 2XScreen type
40 megapixelsFront camera
NoFoldable
5GNetwork
227 gWeight
512 GBStorage
108 megapixelsMain camera
Physical SIM + eSIMSIM card

The Samsung Galaxy S21 Ultra 5G is a flagship smartphone that offers an impressive combination of advanced features and powerful performance. Released in January 2021, this model remains a top choice for users seeking high-end specifications and versatile functionality.

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 a 108MP main sensor
Connectivity: 5G compatible for ultra-fast download speeds.

Who is this for?

The Samsung Galaxy S21 Ultra 5G is perfect for professionals, content creators, and tech enthusiasts who require a powerful device for multitasking, photography, and media consumption. Its expansive display and advanced camera capabilities make it ideal for users who prioritise high-quality visuals and performance.

Pros & Cons:

Pros	Cons
Exceptional camera performance with 108MP sensor.	Large size may not suit all users.
Stunning AMOLED display with vibrant colours.	High price point compared to other models.

Why refurbished?

Choosing a refurbished Samsung Galaxy S21 Ultra 5G allows you to enjoy premium features while being environmentally conscious. Back Market ensures each device undergoes rigorous testing and quality checks, providing you with a reliable product. Learn more about our quality standards.

Camera Type: Quadruple (4x)
Screen type: Dynamic AMOLED 2X
Front camera: 40 megapixels
Foldable: No
Network: 5G
Weight: 227 g
Storage: 512 GB
Main camera: 108 megapixels
SIM card: Physical SIM + eSIM
Carrier compatibility: Unlocked
Memory (GB): 16 GB
SAR head: 0.71
OS: Android
Model: Galaxy S21 Ultra 5G
Brand: Samsung
Colour: Dark Gray
SD Card Slot: No
SAR body: 1.58
Serie: Samsung Galaxy S
Resolution: 1440 x 3200
Screen size (in): 6.8
Compatible with latest Update: Yes
Color (official name): Phantom titanium
Manufacturer Ref: SM-G998
Connector: USB-C
Year of Release: 2021

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Galaxy S21 Ultra 5GDark Gray • 512 GB • Physical SIM + eSIM

Galaxy S21 Ultra 5GDark Gray • 512 GB • Physical SIM + eSIM

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Customer reviews for Galaxy S21 Ultra 5G

Overall rating

Rating details

Reviews

Reviews

Theresa M.

Adam D.

Corey O.

John D.

Beauty ezinne J.

Colm D.

Mantas 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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