Galaxy S23256 GB•Green

Name: Refurbished Galaxy S23
Brand: Samsung
Availability: InStock
Rating: 4.8 (868 reviews)

4.8/5(868 reviews)

£321.00

Save £698.00

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

Visible signs of useVerified partsBattery for daily use

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Select the colour

Galaxy S23

Fair
Standard battery
Green
256 GB
Physical SIM + eSIM

£321.00

£1,019.00 newSave £698.00

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

Fair-Standard battery-Green-256 GB-Physical SIM + eSIM

£321.00

£1,019.00 newSave £698.00

£321.00

£1,019.00 newSave £698.00

Customer reviews for Galaxy S23

Overall rating

4.8/5

868 verified reviews

Rating details

Appearance: 4.8/5
Battery: 4.7/5
Delivery: 4.9/5

Top reviews with photos

Reviews

Leo Brown

Verified purchase

5/5

Reviewed 23/06/2026, United Kingdom.

Galaxy S23 256GB Black Unlocked | PhoneMartSee item

Condition PremiumPurchased 10/06/2026

Nicola Hamilton

Verified purchase

5/5

Reviewed 01/03/2026, United Kingdom.

My S23 is exactly as described, with no scratches on the phone or screen. It works great and supports many apps. The only strange thing is that some contact icons show in Japanese even though I removed that language. Not a big problem. You won't be disappointed with PhoneMart.

Galaxy S23 256GB Purple Unlocked | PhoneMartSee item

Condition FairPurchased 16/02/2026

John Davies

Verified purchase

5/5

Reviewed 18/05/2025, United Kingdom.

The phone arrived very quickly. I couldn't find any marks on it. It looks so good you wouldn't know it was refurbished. It works perfectly. I have used PhoneMart before and will use them again if needed.

Galaxy S23 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 03/05/2025

Thomas Martin

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

So far so good. The phone arrived in perfect condition and everything works smoothly. It was also a good price. Thanks.

Galaxy S23 256GB Black Unlocked | PhoneMartSee item

Condition PremiumPurchased 23/08/2026

Victoria Sheppard

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

I love my phone and am not disappointed with anything. I keep finding new features on it. Thank you PhoneMart.

Galaxy S23 256GB Green Unlocked | PhoneMartSee item

Condition ExcellentPurchased 22/08/2026

Dawn Campbell

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

I have not used it yet since it is a gift.

Galaxy S23 512GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 19/08/2026

Lisa Frost

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

great

Galaxy S23 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 24/08/2026

Maciej Weston

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

Flawless, like new

Galaxy S23 256GB Green Unlocked | PhoneMartSee item

Condition ExcellentPurchased 23/08/2026

Fabiana Clarke

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

I have had no problems with this device. It works like a new phone.

Galaxy S23 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 20/08/2026

Susan Graham

Verified purchase

5/5

Reviewed 01/09/2026, United Kingdom.

The phone is in really good condition with no visible dents or scratches. It works fine. I am switching to sim only and buying a used phone saves a lot. This is my first time ordering here, and I would recommend it.

Galaxy S23 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 22/08/2026

Common questions about the Galaxy S23

Durability

Overall performance

Camera

Screen quality

Green

Colour

256 GB

Storage

Physical SIM + eSIM

Sim

Triple (3x)

Camera type

Unlocked

Carrier compatibility

Yes

Compatible with latest update

USB-C

Connector

Foldable

12 megapixels

Front camera

Samsung Galaxy S23 (2023) fits perfectly in your hand and your day. Its 6.1 inch Dynamic AMOLED 2X screen brings bright, clear visuals that make scrolling, streaming, and gaming a pleasure without the bulk of larger phones. The screen resolution of 1080 by 2340 pixels offers sharp detail whether you're reading messages or watching videos on the go.

The Samsung Galaxy S23 combines a versatile triple camera setup with a main 50 megapixel lens, letting you capture detailed photos in everyday moments. With 8 GB of memory, it handles multitasking smoothly, and its unlocked status means you can choose your carrier freely. Support for 5G networks keeps your connection fast and reliable wherever you use it.

Key features

Screen size: 6.1 inches Dynamic AMOLED 2X
Camera: Triple rear cameras, 50MP main
Memory: 8 GB RAM for smooth multitasking
Mobile network: 5G support
Sim card: Physical SIM plus eSIM supported
Connector: USB-C port for charging and data

Who is this for?

The Galaxy S23 suits anyone wanting a compact, well-rounded Android phone that fits easily in a pocket or bag. It's ideal for professionals or commuters who need quick access to messages, calls, and apps on a reliable 5G connection without a large device weighing them down. Its unlocked design also makes it a flexible choice for travellers or those who switch carriers.

If you appreciate a camera that captures detailed everyday shots and a screen built for vibrant media, this phone delivers. With 8 GB of memory, it handles daily multitasking comfortably, making it a solid companion for those balancing work and personal use.

What you get and what to know

What you get	Good to know
Unlocked device freedom to choose any carrier	Physical SIM + eSIM flexible connectivity options
50MP triple cameras detailed photos in varied conditions	No microSD slot storage fixed at purchase
8 GB RAM smooth multitasking experience	USB-C connector universal charging and data port

Why buy it refurbished?

Choosing a refurbished Galaxy S23 supports sustainable use of electronics by extending device life and reducing waste. Each phone is inspected by professionals through a thorough quality check covering all key functions to ensure it works as expected. All data is securely erased before delivery, and devices are graded by cosmetic condition while fully functional.

Refurbished phones come with a 24-month warranty, free delivery, and 14-day returns, offering confidence in your purchase while saving resources and money compared to buying new.

ColourGreen

Storage256 GB

SimPhysical SIM + eSIM

Camera typeTriple (3x)

Carrier compatibilityUnlocked

Compatible with latest updateYes

ConnectorUSB-C

FoldableNo

Front camera12 megapixels

Main camera50 megapixels

Memory gb8 GB GB

Mobile network5G

OsAndroid

Resolution1080 x 2340

Sar body1.59

Sar head1.21

Screen size in6.1 inch

Screen typeDynamic AMOLED 2X

Sd card slotNo

Sim cardPhysical SIM + eSIM

Weight168 g g

Year of release2023

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Who is this for?

What you get and what to know

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