Galaxy S25 UltraGrey • 512 GB • Physical SIM + eSIM

Name: Galaxy S25 Ultra 512GB - Grey - Unlocked
Brand: Samsung
Price: 751.00 GBP
Availability: InStock
Rating: 4.54 (2721 reviews)

(2,721 reviews)

£751.00

before trade-in

Save £448.99

Galaxy S25 UltraGrey • 512 GB • Physical SIM + eSIM

(2,721 reviews)

£751.00

before trade-in

Save £448.99

Free delivery by 30 Sept - 1 Oct

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Based on up to 100-points of inspection

Customer reviews for Galaxy S25 Ultra

Overall rating

2,721 verified reviews

Rating details

Accessories
4.2/5
Appearance
4.7/5
Battery
4.6/5
Lens & Camera
4.7/5
Overall performance
4.7/5
Packaging
4.4/5
Shipping
4.7/5

Reviews

Darren D.
Verified purchase
Reviewed 29/06/2026, United Kingdom.
I've been really impressed with the Galaxy S25 Ultra. The performance is excellent, the battery comfortably lasts all day, and the display is outstanding. The camera system is a significant step up from my previous phone, producing fantastic photos in a wide range of lighting conditions without needing to understand lots of camera settings. The S Pen is a useful addition, and the overall build quality feels premium. Despite having so many features, the phone is straightforward to use, which is something I particularly appreciate. Buying a refurbished device was also a great decision. The phone arrived in excellent condition, looked virtually brand new, and performed exactly as expected. It's reassuring to know I've saved money while also making a more environmentally friendly choice. Overall, I would highly recommend both the Galaxy S25 Ultra and purchasing a refurbished model. It's an excellent phone and represents fantastic value for money.
Galaxy S25 Ultra 256GB - Black - Unlocked
Galaxy S25 Ultra 256GB - Black - Unlocked
Condition
Excellent
Purchased
17/06/2026
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
Purchased
13/04/2026
Tom C.
Verified purchase
Reviewed 03/09/2026, United Kingdom.
Yep! Arrived today 3/9/26 and I'm well happy. Bought it in fair condition and it's practically perfect condition. Couple of minor scratches around the charging port and a tiny one that's almost invisible on the back. Great price & fast delivery. Everything seems to be working as it should and battery health says 100%!!
Galaxy S25 Ultra 256GB - Black - Unlocked
Galaxy S25 Ultra 256GB - Black - Unlocked
Condition
Fair
Purchased
01/09/2026
Ashley B.
Verified purchase
Reviewed 05/04/2026, United Kingdom.
very impressed with the device, no visible marks or scratches came from z fold 5 and besides the folding the s25 ultra is better in everyway I did have my doubts about buying a second hand device online but I have been very surprised and impressed with the quality of the device, quickness of purchasing and also shipping and the sellers care into packaging
Galaxy S25 Ultra 256GB - Black - Unlocked
Galaxy S25 Ultra 256GB - Black - Unlocked
Condition
Excellent
Purchased
01/04/2026
Azeemullah H.
Verified purchase
Reviewed 31/07/2026, United Kingdom.
Great phone, excellent condition, and very fast delivery. Very happy with my purchase!
Galaxy S25 Ultra 256GB - Blue - Unlocked
Galaxy S25 Ultra 256GB - Blue - Unlocked
Condition
Premium
Purchased
23/07/2026
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
Purchased
14/05/2026
Hen M.
Verified purchase
Reviewed 11/08/2026, United Kingdom.
Fantastic experience with Back Market! I bought the Galaxy S25 Ultra 512GB in Grey (Unlocked), and it arrived in pristine condition, working perfectly. It's an amazing phone with tons of storage, and buying refurbished is such a great way to get high-end tech while helping the planet. Super smooth transaction and quick delivery will definitely shop here again
Galaxy S25 Ultra 512GB - Grey - Unlocked
Galaxy S25 Ultra 512GB - Grey - Unlocked
Condition
Excellent
Purchased
03/08/2026

Everything you ever wanted to know about the Galaxy S25 Ultra

NoFoldable
SamsungBrand
Galaxy S25 UltraModel
512 GBStorage
12Front camera
YesCompatible with latest Update
1.25SAR head
2025Year of Release
1440x3120Resolution

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.

Foldable: No
Brand: Samsung
Model: Galaxy S25 Ultra
Storage: 512 GB
Front camera: 12
Compatible with latest Update: Yes
SAR head: 1.25
Year of Release: 2025
Resolution: 1440x3120
Serie: Samsung Galaxy S
SD Card Slot: No
Mobile network: 5G
Connector: USB-C
Screen size (in): 6.9
Memory (GB): 12 GB
Colour: Grey
Colour (official name): Titanium Gray
OS: Android
Manufacturer Ref: SM-S938
SIM card: Physical SIM + eSIM
Carrier compatibility: Unlocked
Weight: 218 g
Camera Type: Quintuple (5x)

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Galaxy S25 UltraGrey • 512 GB • Physical SIM + eSIM

Galaxy S25 UltraGrey • 512 GB • Physical SIM + eSIM

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