Galaxy S21 Ultra 5GSilver • 128 GB • Dual Physical SIM + eSIM

Name: Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
Brand: Samsung
Price: 212.99 GBP
Availability: InStock
Rating: 4.29 (6657 reviews)

(6,657 reviews)

£212.99

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Customer reviews for Galaxy S21 Ultra 5G

Overall rating

6,657 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

Javed S.
Verified purchase
Reviewed 07/04/2025, United Kingdom.
Ordered a "Good" quality Samsung Galaxy S21 Ultra 5g phone and surprised as its almost like a brand new phone apart from a few cosmetic dints which were expected I suppose. Still to find out how battery performs over time but my wife is quiet impressed with the phone. Would definitely buy another phone from here as they've kept the word on quality of the phone. Keep up the good work and help the planet.
Galaxy S21 Ultra 5G 256GB - Silver - Unlocked
Galaxy S21 Ultra 5G 256GB - Silver - 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
23/03/2025
Blacklab M.
Verified purchase
Reviewed 27/08/2026, United Kingdom.
I orderedva premium level mobile. It looks and feels brand new. Arrived on time with plenty of tracking info. So far I am very pleased. This is the first time that I have purchased a refurbished item.
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Galaxy S21 Ultra 5G 128GB - Black - Unlocked
Condition
Premium
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
19/08/2026
Peter H.
Verified purchase
Reviewed 14/07/2026, United Kingdom.
was very pleased with my phone Samsung galaxy S21 ultra. Condition was very good and battery life seems to be excellent far exceeding my expectation as suppliers description was good. The actual purchase was straight forward and delivery was very timely . Could not be more pleased
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
06/07/2026
Aidas A.
Verified purchase
Reviewed 27/03/2025, United Kingdom.
I ordered samsung s21 ultra,and it comes in very good condition. There are no scratches on the phone at all. It works like a new one . I would recommend to everyone it's better to buy refurbished on a half price than pay full price at store for a new one.
Galaxy S21 Ultra 5G 512GB - Black - Unlocked
Galaxy S21 Ultra 5G 512GB - Black - Unlocked
Condition
Premium
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
11/03/2025
Hakim A.
Verified purchase
Reviewed 13/05/2026, United Kingdom.
It is so far the best experience I had with a refurbished phone it is absolutely stunning the quality is Immaculate and the service has been fast Safe and efficient. I have recommended Back Market to my friend who bought a phone for his wife I also highly recommend this seller to anyone who wants a very good phone at a fraction of the price.
Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
Galaxy S21 Ultra 5G 128GB - Silver - 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
25/04/2026
Stephanie W.
Verified purchase
Reviewed 15/04/2026, United Kingdom.
Absolutely brilliant phone. I am very happy with my purchase. Samsung galaxy s21 ultra. The phone arrived in perfect condition and although I requested a phone in" good condition" I can't tell the difference from a brand new one. I would highly recommend Back market to anyone.
Galaxy S21 Ultra 5G 256GB - Dark Blue - Unlocked
Galaxy S21 Ultra 5G 256GB - Dark Blue - 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
11/04/2026
Richard M.
Verified purchase
Reviewed 15/06/2026, United Kingdom.
unfortunately I have locked myself out of the phone. I have given it to technicians and am waiting for them to get me back into it. as soon as I get it back I will transfer my data and send it on to you. I think that will be the middle of next week
Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
Galaxy S21 Ultra 5G 128GB - Silver - 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
01/06/2026

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

Durability
Overall performance
Camera
Screen quality

0,714SAR head
UnlockedCarrier compatibility
NoSD Card Slot
YesCompatible with latest Update
SilverColour
SM-G998B/DSManufacturer Ref
NoFoldable
7,56 cmWidth
12 GBMemory (GB)

The Galaxy S21 Ultra 5G is a premium smartphone that showcases Samsung's flagship capabilities. Released in January 2021, it features a stunning design and top-tier specifications, making it a strong contender even in the current market.

Key features:

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

Who is this for?

The Galaxy S21 Ultra 5G is ideal for professionals, content creators, and tech enthusiasts who demand high performance and exceptional camera capabilities. It’s perfect for those who enjoy photography or videography, as well as users who consume a lot of multimedia content.

Pros & Cons:

Pros	Cons
Exceptional camera quality with versatile shooting options.	Large size may not be comfortable for one-handed use.
Stunning display with vibrant colours and high refresh rate.	No expandable storage option available.

Why refurbished?

Choosing a refurbished Galaxy S21 Ultra 5G allows you to enjoy a high-end smartphone with premium features while being environmentally conscious. Back Market ensures that each device is rigorously tested for quality and reliability. Learn more about our quality standards.

SAR head: 0,714
Carrier compatibility: Unlocked
SD Card Slot: No
Compatible with latest Update: Yes
Colour: Silver
Manufacturer Ref: SM-G998B/DS
Foldable: No
Width: 7,56 cm
Memory (GB): 12 GB
Model: Galaxy S21 Ultra 5G
Colour (official name): Phantom Silver
Main camera: 108 megapixels
SAR body: 1,58
SAR body part: 2,56
Resolution: 1440 x 3200
Front camera: 40 megapixels
Serie: Samsung Galaxy S
Storage: 128 GB
Screen type: Dynamic AMOLED 2X
Connector: USB-C
Depth: 0,89 cm
Height: 16,15 cm
Weight: 227 g
SIM card: Dual Physical SIM + eSIM
Mobile network: 5G
Brand: Samsung
Screen size (in): 6.8
OS: Android
Year of Release: 2021

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Galaxy S21 Ultra 5GSilver • 128 GB • Dual Physical SIM + eSIM

Galaxy S21 Ultra 5GSilver • 128 GB • Dual Physical SIM + eSIM

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Customer reviews for Galaxy S21 Ultra 5G

Overall rating

Rating details

Reviews

Reviews

Javed S.

Blacklab M.

Peter H.

Aidas A.

Hakim A.

Stephanie W.

Richard M.

Popular searches

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

Durability

Overall performance

Camera

Screen quality

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