Galaxy S25 Ultra256 GB•Black

4.8/5(536 reviews)

£690.00

Save £510.00

Standard Delivery by 14 - 16 OctExpress Delivery by 12 Oct for £12.00

Restored professionally

Based on up to 100-points of inspection

The PhoneMart Promise

Based on up to 100-points of inspection

We measure each battery's health and capacity against strict standards, and replace any that don't make the grade, so you get power you can rely on all day.
The display is switched on and looked over closely for any blemishes, so there are no marks, dust spots or discolouration to spoil the view.
Where a charger is included, the cord and connectors are checked for wear, and the plug is confirmed to fit sockets.
Before it ships, every device gets a thorough professional clean and polish so it feels fresh in your hands.
Every lens is put to work, so we can confirm sharp photos, smooth video and reliable performance on video calls.
A full factory reset wipes the device clean, securely erasing all previous data and restoring the original settings.
We confirm the network status up front, so you know exactly whether the device is locked or unlocked before it arrives.
Cards are inserted to make sure the device reads SIM and memory cards correctly, and that every tray and slot works smoothly.
Each button is pressed to check it responds straight away and does exactly what it should, from volume to lock to power.
If any parts are fitted during refurbishment, they are tested for compatibility and held to the same standards as the originals.
We run the IMEI to confirm it is clean and never blacklisted, and that the device details match the manufacturer's records.
The moisture indicator inside the device is inspected to rule out any history of water or liquid damage.
Every port, including the headphone, USB and Ethernet connections, is checked to make sure it connects and works reliably.
Face and fingerprint unlock, along with any voice recognition, are tested to make sure they work quickly and accurately.
Positioning is checked for accurate GPS, so maps and location apps behave exactly as they should.
External sensors, such as proximity, brightness, laser measurement and heart rate, are checked for precise and responsive readings.
Screws, casing, frames and other mechanical parts are examined to confirm they are original or quality replacements, and any replacement has to match or beat industry standards.
We confirm that Wi-Fi and Bluetooth connect quickly and hold a stable signal.
Speakers and microphones are inspected and fine tuned so audio records and plays back clearly.
The flash and every indicator light are tested to confirm they light up and work correctly.
Any features that are specific to your device are checked against the same standards, so nothing gets missed.

Select the condition

Example image

Body

Light signs of useVerified partsBattery for daily use

Select the colour

Select the colour

Galaxy S25 Ultra

Good
Standard battery
Black
256 GB
Dual Physical SIM + eSIM

£690.00

£1,200.00 newSave £510.00

14-day returns

Set up the return in just a few clicks in your PhoneMart account.

Send the device back within 14 days of receiving it. Return postage is paid by you unless the item is faulty, damaged or not what you ordered.

Get your cash back within 3 business days of the seller receiving the device.

Proudly refurbished by PhoneMart Privacy policy

Comes with

Compatible charging cable

Good-Standard battery-Black-256 GB-Dual Physical SIM + eSIM

£690.00

£1,200.00 newSave £510.00

£690.00

£1,200.00 newSave £510.00

Customer reviews for Galaxy S25 Ultra

Overall rating

4.8/5

536 verified reviews

Rating details

Appearance: 4.8/5
Battery: 4.7/5
Delivery: 4.8/5

Top reviews with photos

Reviews

Richard Andrews

Verified purchase

5/5

Reviewed 25/07/2026, United Kingdom.

Everything went smoothly, even with DPD who sometimes fail to deliver to my address. It was simple and straightforward, and the phone works great.

Galaxy S25 Ultra 256GB Gray Unlocked | PhoneMartSee item

Condition FairPurchased 17/07/2026

Jānis Kerr

Verified purchase

5/5

Reviewed 15/07/2026, United Kingdom.

The phone is like new and the battery health is at 100%.

Galaxy S25 Ultra 256GB Silver Unlocked | PhoneMartSee item

Condition FairPurchased 28/06/2026

Aleksejs Atkinson

Verified purchase

5/5

Reviewed 02/05/2026, United Kingdom.

I like my new phone. The quality is very good. Thank you.

Galaxy S25 Ultra 256GB Silver Unlocked | PhoneMartSee item

Condition FairPurchased 23/04/2026

James Berry

Verified purchase

5/5

Reviewed 27/03/2026, United Kingdom.

I am quite happy with the phone.

Galaxy S25 Ultra 256GB Silver Unlocked | PhoneMartSee item

Condition FairPurchased 18/03/2026

Stanley Newman

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

It arrived in perfect condition.

Galaxy S25 Ultra 256GB Blue Unlocked | PhoneMartSee item

Condition GoodPurchased 22/08/2026

Oluseyi Davies

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

Galaxy S25 UltraSee item

Purchased 11/08/2026

Laura McDonald

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

The phone was exactly as described and in excellent condition.

Galaxy S25 Ultra 256GB Gray Unlocked | PhoneMartSee item

Condition FairPurchased 24/08/2026

Hina Arshad

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

The phone looks like new and the battery life is very good. Thanks. The only issue is it could have been packed better with more bubble wrap because it came only in cardboard packaging.

Galaxy S25 Ultra 1TB Rose Gold Unlocked | PhoneMartSee item

Condition PremiumPurchased 24/08/2026

Deborah Morgan

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

I'm still getting used to Android but so far it's good. The battery lasts longer than my iPhone did but still drains faster than I expected. I wish I had switched to Android sooner.

Galaxy S25 Ultra 512GB Titanium Jet Black Unlocked | PhoneMartSee item

Condition FairPurchased 20/08/2026

Sharon Barnes

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

I wanted a phone to replace my big camera. The S25 ultra camera has very clear video and photos and a great zoom. You can also use it without logging into the phone, which is handy. I had a small problem and contacted PhoneMart. They were quick and helpful. Very happy with my purchase.

Galaxy S25 Ultra 512GB Titanium Jet Black Unlocked | PhoneMartSee item

Condition FairPurchased 18/08/2026

Common questions about the Galaxy S25 Ultra

Black

Colour

256 GB

Storage

Dual Physical SIM + eSIM

Sim

Quadruple (4x)

Camera type

Unlocked

Carrier compatibility

Yes

Compatible with latest update

USB-C

Connector

8 cm

Depth

Foldable

Galaxy S25 Ultra 2025 delivers a spacious 6.9-inch Dynamic LTPO AMOLED 2X screen that makes watching videos and scrolling through apps a fully immersive experience. Its smooth 120Hz refresh rate keeps animations fluid and responsive, letting you enjoy every swipe and tap without lag.

Photography takes a leap forward with the Galaxy S25 Ultra thanks to its quadruple camera setup. The standout 200 MP main sensor captures detailed, vibrant shots in everyday scenes, while the telephoto lenses with 3x and 5x optical zoom let you get closer without losing clarity. This phone supports unlocked 5G networks, so you can connect fast wherever your carrier works best.

Key features

Display: 6.9-inch Dynamic LTPO AMOLED 2X, 120Hz smooth visuals
Camera: Quadruple with 200 MP main sensor, telephoto lenses
Memory: 12 GB RAM for multitasking
Network: Unlocked 5G for wide carrier use
Sim card: Physical SIM plus eSIM
Connector: USB-C for charging and data

Who is this for?

The Galaxy S25 Ultra fits users who want a large, vibrant screen for streaming or detailed work, such as editing photos or multitasking between apps. If you rely on your phone for capturing high-resolution images across a variety of distances, the advanced quadruple camera system offers versatility and quality.

Professionals and creatives who appreciate a phone that stays compatible with the latest Android updates will find this model ready for their daily productivity and entertainment needs. The unlocked 5G connectivity ensures you can switch carriers or travel without losing signal.

What you get and what to know

What you get	Good to know
High resolution camera with 200 MP main sensor and telephoto zoom	SIM options include physical SIM and eSIM support
Large AMOLED display 6.9 inches with smooth 120Hz refresh	Weight of 218 g fits a substantial handheld experience
Unlocked 5G offers flexible carrier compatibility	Operating system runs Android, compatible with latest update

Why buy it refurbished?

Buying a refurbished Galaxy S25 Ultra extends the life of a high-quality phone and reduces electronic waste. Each device passes a thorough inspection covering screen, battery health, cameras, connectivity, and more to ensure reliable performance.

All phones are factory reset before delivery, come with a 24-month warranty, free delivery, and a 14-day return period. Choosing refurbished means saving money and supporting a more sustainable approach to technology.

ColourBlack

Storage256 GB

SimDual Physical SIM + eSIM

Camera typeQuadruple (4x)

Carrier compatibilityUnlocked

Compatible with latest updateYes

ConnectorUSB-C

Depth8 cm

FoldableNo

Front camera12

Height162 cm

Main camera"200 MP, f/1.7, 24mm (wide), 1/1.3"", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.52"", 1.12µm, PDAF, OIS, 3x optical zoom 50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52"", 0.7µm, PDAF, OIS, 5x optical zoom"

Memory gb12 GB GB

Mobile network5G

OsAndroid

Resolution1440x3120

Sar head1.25

Screen size in6.9 inch

Screen typeDynamic LTPO AMOLED 2X, 120Hz

Sd card slotNo

Sim cardPhysical SIM + eSIM

Weight218 g g

Width77 cm

Year of release2025

Welcome to PhoneMart

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

24-month warranty
Free delivery on all items
14-day returns
Excellent customer support

Popular searches

Galaxy S25 Ultra256 GB•Black

Restored professionally

Select the condition

Select the condition

Select a battery option

Select a battery option

Select storage

Select storage

Select SIM type

Select SIM type

Select the colour

Select the colour

14-day returns

Comes with

You may also like

Customer reviews for Galaxy S25 Ultra

Overall rating

Rating details

Top reviews with photos

Reviews

Popular searches

Common questions about the Galaxy S25 Ultra

Key features

Who is this for?

What you get and what to know

Why buy it refurbished?

Welcome to PhoneMart