Galaxy S25 Ultra256 GB • Dual Physical SIM + eSIM

Name: Galaxy S25 Ultra 256GB - Unlocked
Brand: Samsung
Price: 667.00 GBP
Availability: InStock

(148 reviews)

£667.00

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Customer reviews for Galaxy S25 Ultra

Overall rating

148 verified reviews

Rating details

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

Reviews

Ryan B.
Verified purchase
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
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
14/05/2026
Labinot S.
Verified purchase
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
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
13/04/2026
Joseph O.
Verified purchase
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
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
21/05/2026
Anil kumar V.
Verified purchase
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
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
24/02/2026
Ray L.
Verified purchase
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
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
16/10/2025
Laura W.
Verified purchase
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
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
04/06/2026
Lesley P.
Verified purchase
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
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
01/06/2026

Everything you ever wanted to know about the Galaxy S25 Ultra

12 GBMemory (GB)
Samsung Galaxy SSerie
1440x3120Resolution
SM-S938Manufacturer Ref
5GMobile network
12Front camera
218 gWeight
Dynamic LTPO AMOLED 2XScreen type
Galaxy S25 UltraModel

The Samsung Galaxy S25 Ultra is the flagship model from Samsung’s 2025 smartphone line-up, merging cutting-edge hardware with a familiar Galaxy S Ultra design. Three generations on from the S22 Ultra, the Galaxy S25 Ultra elevates mobile photography and productivity, thanks to its expansive display, upgraded chipset, and advanced camera setup. This pre-owned device offers both style and firepower for those who want a big-screen experience without carting a tablet around.

Key features:

Release Date: January 2025
Display: 6.8-inch Dynamic AMOLED 2X, QHD+ resolution, 120Hz refresh rate
Processor: Snapdragon 8 Gen 4 (or Samsung Exynos 2500, depending on region)*
Camera: Quad rear camera system with 200MP main sensor, ultra-wide, 3x and 5x telephoto lenses
Operating System: Ships with Android 15, One UI 7
Build Quality: Armour Aluminium frame, Gorilla Glass Victus 3 (front and back)
Connectivity: 5G support, Wi-Fi 7, Bluetooth 5.4
Stylus: Built-in S Pen for note-taking and creative tasks

Who is this for?

The Galaxy S25 Ultra is best suited for power users, creatives, and professionals who want a robust phone with a huge, vibrant display and top-tier camera features. If you handle a lot of multitasking, rely heavily on productivity apps, or love sketching ideas with a stylus, it’s built for you. Compared to the Galaxy S24 Ultra, the S25 Ultra brings a faster chip and camera improvements. However, if you prefer a smaller phone or don't often use the S Pen, you may find other models handier.

Pros & Cons:

Pros	Cons
Giant, sharp display great for streaming and drawing.	Large size isn’t pocket-friendly for everyone.
200MP camera with versatile shooting options.	Heavier build, which some may find bulky for single-handed use.
Latest Wi-Fi 7 support for fast and stable connections.	Premium features may be more than casual users need.
S Pen included for handwriting and creative tasks.	No microSD slot — expansion fans will miss it (again).

Why refurbished?

Choosing a refurbished Galaxy S25 Ultra is a practical move towards a greener planet, letting tech live a second, third, or fourth life. All devices sold via Back Market undergo in-depth testing and checks—so you get performance you can trust. Learn more about our quality standards.

*Processor may differ by region; see official Samsung documentation or [GSMArena](https://www.gsmarena.com/samsung_galaxy_s25_ultra-*) for global spec details.

Memory (GB): 12 GB
Serie: Samsung Galaxy S
Resolution: 1440x3120
Manufacturer Ref: SM-S938
Mobile network: 5G
Front camera: 12
Weight: 218 g
Screen type: Dynamic LTPO AMOLED 2X
Model: Galaxy S25 Ultra
Foldable: No
Colour (official name): Titanium Pink Gold
Year of Release: 2025
SIM card: Dual Physical SIM + eSIM
Screen size (in): 6.9
OS: Android
Carrier compatibility: Unlocked
SAR head: 1.25
Brand: Samsung
Storage: 256 GB
SD Card Slot: No
Connector: USB-C

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Galaxy S25 Ultra256 GB • Dual Physical SIM + eSIM

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Rating details

Reviews

Reviews

Ryan B.

Labinot S.

Joseph O.

Anil kumar V.

Ray L.

Laura W.

Lesley P.

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Everything you ever wanted to know about the Galaxy S25 Ultra

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