OnePlus 12512 GB•Black

Name: Refurbished OnePlus 12
Brand: OnePlus
Availability: OutOfStock
Rating: 4.6 (17 reviews)

4.6/5(17 reviews)

£525.00

Save £241.32

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.

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Body

OnePlus partsBattery for heavy useAlmost no signs of useBest quality

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OnePlus 12

Premium
Standard battery
Black
512 GB

£525.00

£766.32 newSave £241.32

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

Premium-Standard battery-Black-512 GB

£525.00

£766.32 newSave £241.32

£525.00

£766.32 newSave £241.32

Customer reviews for OnePlus 12

Overall rating

4.6/5

17 verified reviews

Rating details

Appearance: 4.7/5
Battery: 4.2/5
Delivery: 4.7/5

Reviews

Abdul Malik

Verified purchase

5/5

Reviewed 29/04/2026, United Kingdom.

OnePlus 12See item

Purchased 12/04/2026

Jarek Ainsworth

Verified purchase

5/5

Reviewed 25/04/2026, United Kingdom.

OnePlus 12 512GB Black Unlocked | PhoneMartSee item

Condition PremiumPurchased 11/04/2026

Josh Parker

Verified purchase

5/5

Reviewed 06/12/2025, United Kingdom.

The delivery was very fast and the product quality was great. They mentioned there might be a scuff or two but I can't find any. I've bought older phones from PhoneMart before but never a nearly current model. I'll definitely buy from them again. Battery life is almost perfect and lasts nearly two days, which is impressive nowadays.

OnePlus 12See item

Purchased 23/11/2025

Khristina Ivanova

Verified purchase

5/5

Reviewed 24/11/2025, United Kingdom.

It works well. I'm very happy with the purchase.

OnePlus 12See item

Purchased 10/11/2025

Pawel Pawlak

Verified purchase

5/5

Reviewed 23/11/2025, United Kingdom.

OnePlus 12See item

Purchased 08/11/2025

Sarah Brown

Verified purchase

5/5

Reviewed 08/11/2025, United Kingdom.

OnePlus 12See item

Purchased 07/11/2025

Corey Lewis

Verified purchase

5/5

Reviewed 10/10/2025, United Kingdom.

OnePlus 12See item

Purchased 03/10/2025

Kenneth Knight

Verified purchase

5/5

Reviewed 23/09/2025, United Kingdom.

It arrived on time and looks like a new phone. I would definitely use PhoneMart again.

OnePlus 12 512GB Turquoise Unlocked | PhoneMartSee item

Condition PremiumPurchased 03/09/2025

Toluwa Osborne

Verified purchase

5/5

Reviewed 02/09/2025, United Kingdom.

I bought a OnePlus 12 marked as "excellent" condition. It's basically brand new. The battery is still at 100%. The phone is very fast, the battery lasts a long time and the cameras are good. I liked that it came with the 100W SuperVOOC charger. The charging speed is really as fast as they say. PhoneMart delivered it two days earlier than expected. Great phone and service.

OnePlus 12See item

Purchased 31/08/2025

Matthew Roberts

Verified purchase

5/5

Reviewed 30/08/2025, United Kingdom.

OnePlus 12See item

Purchased 16/08/2025

Common questions about the OnePlus 12

Durability

Overall performance

Camera

Screen quality

Black

Colour

512 GB

Storage

Unlocked

Carrier compatibility

16 GB GB

Memory gb

Mobile network

6.82 inch

Screen size in

Dual Physical SIM

Sim card

2023

Year of release

The OnePlus 12 released in 2023 delivers a spacious 6.82 inch display that brings your videos, games, and apps to life. With 16 GB of RAM, it handles multiple apps and demanding tasks without hesitation. This phone is built for those who want a large screen and plenty of memory to keep everything running smoothly in daily use.

The OnePlus 12 is unlocked and supports 5G networks, giving you the freedom to choose your carrier and enjoy fast mobile internet speeds. Its dual physical SIM capability fits those who need to manage personal and work lines on a single device. If you value performance and connectivity in a sizable Android phone, this model fits naturally into your routine.

Key features

Release Year: 2023
Memory: 16 GB RAM for demanding apps
Screen Size: 6.82 inches for immersive display
Mobile Network: 5G for fast connectivity
Sim Card: Dual Physical SIM for flexible use
Carrier: Unlocked for wide network compatibility

Who is this for?

The OnePlus 12 fits users who regularly juggle multiple apps or games and benefit from 16 GB of RAM to keep everything responsive. It works well for anyone wanting a phone with a large screen for watching media or browsing comfortably. The unlocked status and dual SIM slots suit people who travel frequently or manage separate personal and business numbers.

If you want an Android phone that stays connected with 5G and handles daily multitasking with ease, the OnePlus 12 is a solid choice. Its size and memory make it ideal for those who want a device that supports active, varied use throughout the day.

What you get and what to know

What you get	Good to know
16 GB RAM for smooth multitasking	Dual Physical SIM for managing two numbers
Unlocked to use with any compatible carrier	5G network support for faster mobile data
6.82 inch screen for immersive viewing	Release year 2023 ensures modern design

Why buy it refurbished?

Choosing a refurbished OnePlus 12 means getting a fully tested device inspected by professionals using a thorough 100 point quality check. Each phone is reset and graded to ensure it meets high standards while offering great value. Buying refurbished also keeps electronics in use longer, reducing waste and supporting a more sustainable approach to technology.

ColourBlack

Storage512 GB

Carrier compatibilityUnlocked

Memory gb16 GB GB

Mobile network5G

Screen size in6.82 inch

Sim cardDual Physical SIM

Year of release2023

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OnePlus 12512 GB•Black

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Common questions about the OnePlus 12

Key features

Who is this for?

What you get and what to know

Why buy it refurbished?

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