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Galaxy S21 Ultra 5G

Refurbished Samsung Galaxy S21 Ultra 5G

4.3/5
(1,350 reviews)
Starting at
£286.00before trade-in
£1,316.00 newSave £1,030.00
See options
  • 1-year minimum warranty
  • Free delivery on all items
  • Free 30-day returns
  • Awesome customer service

All Galaxy S21 Ultra options

Buy the Samsung Galaxy S21 Ultra 5G refurbishe...

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Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Black - Unlocked

4.3/5
(1350)
Starting at
£286.00
£1,316.00 new
Best Seller
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Black - Unlocked

4.3/5
(1350)
Starting at
£203.90
£1,149.00 new
Best Seller
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G256 GB - Black - Unlocked

4.3/5
(1350)
Starting at
£272.00
£1,250.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Silver - Unlocked

4.3/5
(1350)
Starting at
£278.00
£1,607.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Silver - Unlocked

4.3/5
(1627)
Starting at
£299.00
£1,800.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G256 GB - Silver - Unlocked

4.3/5
(1361)
Starting at
£330.00
£1,598.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G256 GB - Black - Unlocked

4.3/5
(1361)
Starting at
£365.00
£999.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G512 GB - Black - Unlocked

4.3/5
(1626)
Starting at
£429.99
£1,439.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G256 GB - Silver - Unlocked

4.3/5
(1350)
Starting at
£338.00
£1,647.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G256 GB - Dark grey - Unlocked

4.3/5
(1350)
Starting at
£347.00
£1,578.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G256 GB - Brown - Unlocked

4.3/5
(1355)
Starting at
£403.00
£1,309.77 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Dark Gray - Unlocked

4.3/5
(1360)
Starting at
£299.00
£1,500.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Dark grey - Unlocked

4.3/5
(1350)
Starting at
£299.00
£950.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Brown - Unlocked

4.3/5
(1359)
Starting at
£343.00
£2,500.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Dark grey - Unlocked

4.3/5
(1350)
Starting at
£348.00
£1,899.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Brown - Unlocked

4.3/5
(1404)
Starting at
£599.00
£1,148.00 new
Galaxy S21 Ultra 5G

Galaxy S21 Ultra 5G128 GB - Dark Gray - Unlocked

4.3/5
(1400)
Starting at
£599.00
£1,175.00 new
UK - Black Friday 2024

Refurbished Samsung Galaxy S21 Ultra 5G's customer reviews

4.3/5

1,589 verified reviews in the last 12 months.

  • A

    Aseela A.

    Purchased on the 28 October 2024

    4.9/5

    I'm going to be fully honest. For a refurbished phone, the quality is absolutely surreal. No one could tell the difference between this excellent quality phone from back market and a brand new phone. I am completely satisfied and hope to shop again on this website. Back market is seriously outstanding from other stores, easy 5 stars, completely thrilled about the quality.

    Reviewed in United Kingdom on 10 November 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked - Dual-SIM
  • P

    Paul L.

    Purchased on the 22 October 2024

    5/5

    Needing a new phone and the cost is too much. Well look no further than Black Market. Ive just purchased a refurbished S21 Ultra 5G 128GB from them. I went for their good option and if this is their good option, goodness knows what you get for their best option. This phone was unmarked, charged to 80% out of the box, came with a case and lead. It`s fast, it`s reliable and it ticks all the boxes I could want from a phone. Excellent service from them. Know where I will be heading next time I require any communication device.

    Reviewed in United Kingdom on 7 November 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • A

    Abimbola O.

    Purchased on the 31 March 2024

    4.4/5

    This is a fantastic phone and I totally recommend it. I was initially skeptical about buying a refurbished phone but I saw all the positive reviews and decided to give it a shot. I went for the "good" option just to be safe and I was totally satisfied with my purchase. The phone looks new with an unnoticeable scratch at the back. Other than that, it is totally worth it. I'm enjoying the phone. Thumbs up to the Back Market for their excellent customer service. I will surely come back for more. 😊

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 Ultra 5G 128GB - Silver - Unlocked - Dual-SIM
  • E

    Ellen D.

    Purchased on the 28 March 2024

    4.6/5

    I bought this phone for a better battery, there isn't much difference to my previous phone s20. However, everything else works perfectly. Really happy with my purchase, you couldn't tell it was a refurbished phone. Thanks Back Market 😁

    Reviewed in United Kingdom on 1 July 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked - Dual-SIM
  • A

    Amin G.

    Purchased on the 4 December 2023

    4.8/5

    My first time ordering a refurbished phone, heard of back market and thought I'd give it a try. Ordering and receiving very smooth. Ordered a "good condition" phone it really looks brand new and is in excellent condition I will use this site again

    Reviewed in United Kingdom on 4 January 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked - Dual-SIM
  • K

    Karen R.

    Purchased on the 24 November 2023

    5/5

    Phone was delivered in impeccable condition, honestly looked brand new! So pleases I discovered Back Market and saved myself so much money without compromising on quality. Highly recommend to anyone who's wanting to buy a new phone as you would never tell the difference that you're getting a refurbished phone.

    Reviewed in United Kingdom on 13 December 2023

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked
  • M

    Mohammad K.

    Purchased on the 27 December 2023

    4.9/5

    After I've last week bought this, so far I'm pretty happy with this buy. By a highly competitive price, I bought this Samsung galaxy s21 ultra 5g mobile phone which made me very happy. Thank you very much 'Black Market'.

    Reviewed in United Kingdom on 25 January 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked
  • P

    Philip S.

    Purchased on the 20 January 2024

    4.8/5

    Galaxy S21 Ultra 5G 256GB ordered, excellent condition paid for. Phone screen and case are fine and have no issues, the phone looks pretty much brand new. Had it for 2 weeks now and running AccuBattery Pro app to check battery health, currently at 88% following a few full charges. Better than expected. Overall I am very satisfied with the phone.

    Reviewed in United Kingdom on 5 February 2024

    Galaxy S21 Ultra 5G 256GB - Dark Grey - Unlocked
  • J

    Joel L.

    Purchased on the 24 November 2023

    4.2/5

    Phone arrived with the bottom corners scratched, the screen itself was mildly scratched as well which is to be expected from a refurbished phone. Functionally, the phone works as expected, however battery life is abysmal. I was hoping the phone would've arrived with a better battery condition.

    Reviewed in United Kingdom on 11 December 2023

    Galaxy S21 Ultra 5G 256GB - Dark Grey - Unlocked - Dual-SIM
  • L

    Lorraine H.

    Purchased on the 12 October 2024

    5/5

    1st time I have used this company for refurbished phones very happy with Samsung galaxy 21 ultra , would defo do this again alot cheaper than buying brand new 😀

    Reviewed in United Kingdom on 24 October 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
See all 1,589 reviews

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