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Compatible charging cable
Refurbished price:£288.00
£889.00 newVersus £889.00 new
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
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
Purchased
23/03/2025
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
Purchased
19/08/2026
Reviewed 22/08/2025, United Kingdom.
I’m really happy with my purchase – absolutely worth it! The condition was even better than described on the website. The only small thing I’ve noticed is that the screen response feels slightly slower compared to my old S21 Ultra in similar condition, but overall I’m very satisfied. It's a silver one just I coverd the camera wiht a black case! Definitely recommend Back Market :)
Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
Condition
Good
Purchased
04/08/2025
Reviewed 03/11/2026, United Kingdom.
phone arrived promptly and was as described on the website. Phone has absolutely nothing wrong with the screen or the body. Battery lasts a long time between charges. Very happy with this purchase. 🙂
Galaxy S21 Ultra 5G 256GB - Silver - Unlocked
Galaxy S21 Ultra 5G 256GB - Silver - Unlocked
Condition
Premium
Purchased
22/10/2026
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
Purchased
06/07/2026
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
Purchased
25/04/2026
Reviewed 02/06/2025, United Kingdom.
was the first time coming across this online store, I was very sceptical as the prices were very low so I carefully read every review and edited to purchase the s21 ultra. It arrived less then 48 hours later with clear communication on tracking and delivery, opened the box and the phone was in prestige condition basically brand new will never be using a highstreet store for phones etc again this is definitely the new go to. I oped for the fair condition the cheapest one so didn't expect the service and item I received. thankyou back market
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Galaxy S21 Ultra 5G 256GB - Black - Unlocked
Condition
Fair
Purchased
19/05/2025
Quadruple (4x)Camera Type
NoSD Card Slot
YesCompatible with latest Update
227 gWeight
Dual Physical SIM + eSIMSIM card
Phantom NavyColour (official name)
NoFoldable
40 megapixelsFront camera
Samsung Galaxy SSerie
The Galaxy S21 Ultra 5G is a flagship smartphone that continues to impress with its advanced features and performance. Launched in January 2021, it remains a top choice for users seeking a powerful device with exceptional camera capabilities and a stunning display.
Key features:The Galaxy S21 Ultra 5G is ideal for photography enthusiasts, gamers, and power users who demand high performance and versatility from their smartphones. It’s particularly well-suited for professionals who need a device that can handle multitasking and content creation with ease.
Pros & Cons:| Pros | Cons |
|---|---|
| Outstanding camera quality with versatile shooting options. | Large and heavy design may not be comfortable for all users. |
| Vibrant and immersive display with 120Hz refresh rate. | Premium price point compared to other models. |
Choosing a refurbished Galaxy S21 Ultra 5G allows you to experience flagship features while being environmentally conscious. Back Market ensures each device is thoroughly tested and restored to excellent condition, providing you with a reliable smartphone. Learn more about our quality standards.
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