Galaxy S25512 GB•Black

Name: Refurbished Galaxy S25
Brand: Samsung
Availability: InStock
Rating: 4.7 (489 reviews)

4.7/5(489 reviews)

£658.95

Save £440.05

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

Good
Standard battery
Black
512 GB
Physical SIM + eSIM

£658.95

£1,099.00 newSave £440.05

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-512 GB-Physical SIM + eSIM

£658.95

£1,099.00 newSave £440.05

£658.95

£1,099.00 newSave £440.05

Customer reviews for Galaxy S25

Overall rating

4.7/5

489 verified reviews

Rating details

Appearance: 4.8/5
Battery: 4.6/5
Delivery: 4.7/5

Top reviews with photos

Reviews

Yngrid Griffiths

Verified purchase

5/5

Reviewed 16/07/2026, United Kingdom.

Galaxy S25 512GB Dark Blue Unlocked | PhoneMartSee item

Condition FairPurchased 30/06/2026

Jeremy Fletcher

Verified purchase

5/5

Reviewed 14/05/2026, United Kingdom.

Great

Galaxy S25 256GB Black Unlocked | PhoneMartSee item

Condition PremiumPurchased 26/04/2026

Graeme Sheppard

Verified purchase

5/5

Reviewed 19/03/2026, United Kingdom.

Galaxy S25 128GB Blue Unlocked | PhoneMartSee item

Condition FairPurchased 08/03/2026

Brenda Lewis

Verified purchase

5/5

Reviewed 21/01/2026, United Kingdom.

I love my phone but I'm not very good with technology! I'd used Samsung phones until my last one, which was a Sony Xperia. Samsung is definitely my favourite now. I'm having some trouble getting the settings right to play Spotify music nonstop through my Bluetooth speaker, but I'm sure I'll sort it out. I play hymns at church and don't want the music interrupted.

Galaxy S25 256GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 06/01/2026

Chris Scott

Verified purchase

5/5

Reviewed 22/11/2025, United Kingdom.

Galaxy S25 256GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 08/11/2025

Anna Cooper

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

I got it quickly and it seems like new. It works perfectly and looks good. I'm very pleased and will definitely buy from PhoneMart again.

Galaxy S25 128GB Dark Blue Unlocked | PhoneMartSee item

Condition GoodPurchased 20/08/2026

Joed Parker

Verified purchase

5/5

Reviewed 31/08/2026, United Kingdom.

Galaxy S25 256GB Black Unlocked | PhoneMartSee item

Condition PremiumPurchased 19/08/2026

Emma Stewart

Verified purchase

5/5

Reviewed 31/08/2026, United Kingdom.

Galaxy S25 256GB Green Unlocked | PhoneMartSee item

Condition ExcellentPurchased 17/08/2026

Stephen Flynn

Verified purchase

5/5

Reviewed 31/08/2026, United Kingdom.

Grate no problems

Galaxy S25 128GB Blue Unlocked | PhoneMartSee item

Condition FairPurchased 17/08/2026

Tony Holmes

Verified purchase

5/5

Reviewed 31/08/2026, United Kingdom.

Ordering was easy and it arrived quickly, well packed and exactly as described. No problems with the phone so far. It took a while to transfer everything from my old phone, even with Samsung's transfer software.

Galaxy S25 256GB Dark Blue Unlocked | PhoneMartSee item

Condition ExcellentPurchased 19/08/2026

Common questions about the Galaxy S25

Black

Colour

512 GB

Storage

Physical SIM + eSIM

Sim

Triple (3x)

Camera type

Unlocked

Carrier compatibility

Yes

Compatible with latest update

USB-C

Connector

Foldable

50 MP, f/1.8, 24mm (wide)

Front camera

Galaxy S25 is made for users who want a vibrant screen and reliable camera system in a compact size. Its 6.2-inch Dynamic LTPO AMOLED 2X screen refreshes at 120Hz, making scrolling through apps and streaming on the go feel fluid and natural. Paired with 12 GB of RAM, it handles multitasking and everyday apps without hesitation.

With a triple rear camera setup featuring a 50 megapixel main sensor and a 50 MP front camera, the Galaxy S25 captures sharp, detailed photos whether you're snapping landscapes or selfies. The phone supports 5G on unlocked networks, giving you the freedom to switch carriers and stay connected fast. Released in 2025, it offers a balance of modern hardware with a familiar Android experience.

Key features

Display: 6.2-inch Dynamic LTPO AMOLED 2X, 120Hz refresh
Memory: 12 GB RAM for multitasking
Camera: Triple rear cameras, main 50 megapixels
Front Camera: 50 MP, f/1.8, 24mm wide angle
Network: Unlocked 5G with Dual Physical SIM
Connector: USB-C port for charging and data

Who is this for?

The Galaxy S25 fits anyone who needs a phone that balances a vivid display with smooth multitasking. Urban commuters and professionals will appreciate its compact size paired with 5G unlocked network support, letting you stay connected without hassle. Photographers who want flexible but straightforward camera options will find the triple 50MP setup reliable for everyday shots and selfies.

It's also ideal for those upgrading from previous Galaxy models who want a sharper screen and more memory, without moving to a larger phone. The Galaxy S25 handles streaming, gaming, and productivity with ease on its Android platform, making it a solid choice for daily use.

What you get and what to know

What you get	Good to know
High-resolution display 6.2-inch AMOLED screen	No expandable storage use built-in memory
Triple rear cameras versatile 50MP main sensor	Runs Android compatible with latest update
Dual SIM slots use two physical SIM cards	USB-C connector for charging and data

Why buy it refurbished?

Choosing a refurbished Galaxy S25 helps you get flagship-level features while reducing electronic waste. Each device is inspected by professionals through a detailed quality check covering screen, cameras, connectivity, and more. It arrives factory reset and ready to use, graded for cosmetic condition but fully functional.

Refurbished phones at PhoneMart come with free delivery, 14-day returns, and a 24-month warranty, offering confidence alongside an environmentally conscious choice.

ColourBlack

Storage512 GB

SimPhysical SIM + eSIM

Camera typeTriple (3x)

Carrier compatibilityUnlocked

Compatible with latest updateYes

ConnectorUSB-C

FoldableNo

Front camera50 MP, f/1.8, 24mm (wide)

Main camera50 megapixels

Memory gb12 GB GB

Mobile network5G

OsAndroid

Resolution1080x2340

Sar head1

Screen size in6.2 inch

Screen typeDynamic LTPO AMOLED 2X, 120Hz

Sd card slotNo

Sim cardDual Physical SIM

Weight162 g g

Year of release2025

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Galaxy S25512 GB•Black

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Common questions about the Galaxy S25

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Who is this for?

What you get and what to know

Why buy it refurbished?

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