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Proudly refurbished by Stock Must Go Ltd (United Kingdom)
Comes with
Compatible charging cable
1,387 verified reviews in the last 12 months.
Tanya P.
Purchased on the 24 November 2024
Verified purchaseI ordered a 'good' condition Samsung S23 ultra Sunday afternoon. Paid a little for faster despatch and received Tuesday morning. I am so pleased. Only marks I can see to suggest it is a refurbishment is a little scratch near the charging port. Thank you so much 👌
Reviewed in United Kingdom on 9 December 2024
Galaxy S23 Ultra 256GB - Black - UnlockedLois S.
Purchased on the 12 March 2025
Verified purchaseThis is the first time buying a refurbished phone so I was a little worried. I brought a phone in 'good' condition and have to say I'm so impressed. It's in near perfect condition and is working as if it was brand new. I paid extra for the faster delivery and it was delivered the next day. Will definitely be using this company again.
Reviewed in United Kingdom on 15 March 2025
Galaxy S23 Ultra 256GB - Black - UnlockedLan B.
Purchased on the 15 February 2025
Verified purchaseExactly as described at a fair price. Perfect for my teen son who wanted a decent phone model but wasn’t fussy about new/refurbished. Very pleased with the product and service and would buy from Backmarket again.
Reviewed in United Kingdom on 2 March 2025
Galaxy S23 Ultra 512GB - Green - UnlockedHenry B.
Purchased on the 13 February 2025
Verified purchaseFirst time, taking a 'punt' at a refurbished phone purchase & was not disappointed. Outstanding, fast (less than 48 hours) service from initial order to receiving my S23 Ultra (advertised as in excellent condition) & of which was in 'mint condition' at a price that is a fraction of the current retail price. No nonsense customer service between both Back Market & delivery company was fantastic; notified / kept informed of said delivery every step of the way. I highly recommend (it's a no brainer), if you are hesitant of a refurb purchase - this is one customer that will defo be opting for the refurbished purchase option in the future (Back Market is the place to shop!)
Reviewed in United Kingdom on 24 February 2025
Galaxy S23 Ultra 512GB - Green - UnlockedBen D.
Purchased on the 26 October 2024
Verified purchaseI ordered a good grade phone so expected it to have some blemishes on the back and sides which it did. As the phone will always be in a case this is not an issue. However the good description states that the screen should be flawless but unfortunately there are a couple of feint scratches. Once I'd applied a screen protector these can't be seen so not serious enough to warrant returning the phone. So, overall I'm very happy with my refurbished S23 Ultra which was significantly less than half the price of buying one new. The order process is straightforward and phone was delivered on time so would definitely recommend Back Market for buying quality refurbished tech.
Reviewed in United Kingdom on 9 December 2024
Galaxy S23 Ultra 512GB - Black - UnlockedWendel B.
Purchased on the 30 September 2024
Verified purchaseI went for an excellent grade s23 ultra. The phone arrived in good condition and was given a tracking which helped me time when I should be home. The phone is good as new as expected and very happy with the purchase. This isn't the first purchase from Back Market but all I can say is that you are consistent. Keep up the good work and good quality assurance and customers like myself will always come back. protect the environment and buy refurbished.
Reviewed in United Kingdom on 9 December 2024
Galaxy S23 Ultra 256GB - Black - UnlockedDavid G.
Purchased on the 12 March 2025
Verified purchaseI bought a Samsung Galaxy S23 ultra. I went for the excellent grade phone and it really is spotless. not a mark on it. I am really very happy. the phone operates perfectly, it's fast, had an amazing camera and still has 5 years of security updates according to the Samsung website. you don't get that with many other phone brands not even Sony. the delivery was next day, what's not to like...
Reviewed in United Kingdom on 20 March 2025
Galaxy S23 Ultra 512GB - Black - UnlockedHere’s what you help prevent on average by choosing a reborn smartphone over a brand new one.
That’s like driving an old banger from London to Edinburgh and back.
That’s around the weight of a baseball.
That's like 20 dogs digging in your yard for a week.
That's like running a faucet for 3 days
BlackColour
256 GBStorage
8 GBMemory
Galaxy S23 UltraModel
AndroidOS
NoRetro tech
Dynamic AMOLED 2XScreen type
USB-CConnector
12 megapixelsFront camera
Colour | Black |
Storage | 256 GB |
Memory | 8 GB |
Model | Galaxy S23 Ultra |
OS | Android |
Retro tech | No |
Screen type | Dynamic AMOLED 2X |
Connector | USB-C |
Front camera | 12 megapixels |
Company name | Samsung Electronics |
Series | Samsung Galaxy S |
Company email address | support@samsung.com |
Company postal address | Samsung House, 1000 Hillswood Drive, Chertsey, Surrey, KT16 0PS, UK |
SIM card | Dual Physical SIM + eSIM |
Main camera | 200 megapixels |
Colour (official name) | Phantom Black |
SD Card Slot | No |
Foldable | No |
Compatible with latest Update | Yes |
Network | 5G |
Resolution | 1440 x 3088 |
SAR body | 1.4 |
SAR head | 0.96 |
Screen size (in) | 6.8 |
Carrier compatibility | Unlocked |
Year of Release | 2023 |
Brand | Samsung |
Weight | 234 g |