Galaxy S25 UltraGreen • 512 GB • Dual Physical SIM + eSIM
(1,378 reviews)
£655.00
before trade-in
Save £209.00
Deals available
See limited deals and price drops
Free delivery by 25 - 26 Jun
United States
English (US)
Deals available
See limited deals and price drops
All guaranteed 100% functional









Compatible charging cable

Refurbished price:£655.00
£864.00 newVersus £864.00 new
Accessories
4.2/5
Appearance
4.7/5
Battery
4.5/5
Lens & Camera
4.7/5
Overall performance
4.6/5
Packaging
4.4/5
Shipping
4.6/5
Reviewed 20/05/2026, United Kingdom.
Bought a Samsung s25 ultra 512gb model, device was delivered earlier than expected, opted for the good condition, which came and was in excellent condition with limited signs of use. Battery health was 99%. Colour requested was blue-silver but appears more on the white side, overall would definitely use again for future purchases.
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Condition
Good
Purchased
14/05/2026
Reviewed 30/04/2026, United Kingdom.
I was genuinely surprised. The phone is practically brand new. Not a single mark or scratch anywhere to be seen. Did a battery health check which showed 100% battery health, I was not expecting that. I basically got a new phone for £700 less than buying directly from Samsung. Very happy. Will be using Backmarket again.
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Condition
Premium
Purchased
13/04/2026
Reviewed 31/05/2026, United Kingdom.
i ordered it and it got delivered the next day. Too soon to say how it's going to be long term but it's been really impressive so far. it does actually look like new i dont know why anyone would call it refurbushed. i'll surely be coming back.
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Condition
Excellent
Purchased
21/05/2026
Reviewed 26/02/2026, United Kingdom.
First of all the the phone looks neat and clean like brand new come with all documents and cables with og box happy with that thank you back market for great experience with I will definitely purchase more from you
Galaxy S25 Ultra 256GB - Black - Unlocked
Galaxy S25 Ultra 256GB - Black - Unlocked
Condition
Excellent
Purchased
24/02/2026
Reviewed 26/10/2025, United Kingdom.
I was informed that the phone would take 3 days for delivery. In fact it arrived the following morning after the order was placed. It was very well packed and inside was the Galaxy s25 Ultra phone, usb cable and SIM card tray opener. The condition was as good as a brand new phone. No marks, scratches or screen blemishes anywhere and it was fuly charged ready to go. Some reviews state the phones are not UK region This phone is definitely UK region it's accepted all of the data from my old device including social media apps and WhatsApp. I have downloaded all Samsung software updates and installed them with no issues. It is operating exactly as it should do. Thank you Back market for the excellent service and an amazing phone. You've certainly convinced me that buying refurbished is the way to go in the future.
Galaxy S25 Ultra 256GB - Silver - Unlocked
Galaxy S25 Ultra 256GB - Silver - Unlocked
Condition
Good
Purchased
16/10/2025
Reviewed 17/06/2026, United Kingdom.
I am really pleased with my phone, it was in immaculate condition when I received it and so much cheaper than buying a brand new S25 Ultra. The battery life is great too and fast charging is extremely fast too. I have upgraded from an S22 Ultra which I had for 3 and a half years. The battery was never great on the phone but I knew that when I bought it as I wanted the phone for it's camera. The S25 Ultra still has a great camera and 512GB is far superior to the 128GB on the S22 Ultra. The reason I upgraded was because my phone had no storage space available and the battery was not efficient anymore. The S25 Ultra is a great phone, easy to navigate and has lots of better features on it. I would definitely use Back Market again to buy a reconditioned phone. They have great reviews on Trust Pilot too. I purchased the phone around 11pm on a Thursday evening and it was due to arrive on the following Tuesday. The phone arrived on the Saturday afternoon, I received communication to let me know when it would be arriving too. Very quick postage, I wasn't expecting to receive the phone so quickly. Thank you very much.
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Condition
Premium
Purchased
04/06/2026
Reviewed 14/06/2026, United Kingdom.
It's great like new and all working fine, I have a few samsung products so easy to put everything over from old phone.
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Galaxy S25 Ultra 512GB - Silver Blue - Unlocked
Condition
Premium
Purchased
01/06/2026
1.25SAR head
1440x3120Resolution
GreenColour
Dynamic LTPO AMOLED 2XScreen type
Titanium Jade GreenColour (official name)
12Front camera
UnlockedCarrier compatibility
2025Year of Release
NoFoldable



The best prices for high-quality renewed goods by sellers we’ve checked and vetted. We don’t mind if you Google us.
Get to know us