OnePlus 6T256 GB•Black

Name: Refurbished OnePlus 6T
Brand: OnePlus
Availability: OutOfStock
Rating: 4.5 (40 reviews)

4.5/5(40 reviews)

£119.00

Save £520.00

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.

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Body

Visible signs of useVerified partsBattery for daily use

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OnePlus 6T

Fair
Standard battery
Black
256 GB

£119.00

£639.00 newSave £520.00

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-Black-256 GB

£119.00

£639.00 newSave £520.00

£119.00

£639.00 newSave £520.00

Customer reviews for OnePlus 6T

Overall rating

4.5/5

40 verified reviews

Rating details

Appearance: 4.4/5
Battery: 4.3/5
Delivery: 4.6/5

Reviews

Muhammad Latif

Verified purchase

5/5

Reviewed 31/07/2026, United Kingdom.

I prefer PhoneMart. They have a good reputation and this phone works better for me.

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 19/07/2026

Ross Matthews

Verified purchase

5/5

Reviewed 27/01/2025, United Kingdom.

I'm very pleased with my purchase. Thanks a lot, I will definitely buy from them again.

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 25/01/2025

Jimmy Mitchell

Verified purchase

5/5

Reviewed 31/05/2024, United Kingdom.

phone arrived the next day and is in "like new" condition. I would recommend it!

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 23/05/2024

Michael Murray

Verified purchase

5/5

Reviewed 08/04/2024, United Kingdom.

It was exactly what I needed and more.

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 24/03/2024

Jamie Simpson

Verified purchase

5/5

Reviewed 27/01/2024, United Kingdom.

This is the best phone I have had. 8GB RAM! Let's go!

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 15/01/2024

Mohammed Hussain

Verified purchase

5/5

Reviewed 18/07/2023, United Kingdom.

Good solid phone with great features and it performs well for the price.

OnePlus 6TSee item

Purchased 25/06/2023

Chanuka Walker

Verified purchase

5/5

Reviewed 29/06/2023, United Kingdom.

The phone was good but had some small smudges of dirt that ruined the brand new feel. Otherwise it was fine and I'm happy with it.

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 25/06/2023

Richard Nicholls

Verified purchase

5/5

Reviewed 27/03/2023, United Kingdom.

The product was described as fair but it seems better than that. No issues with the screen or battery and the speed is fine. When I upgrade next, I will buy from PhoneMart again.

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 03/03/2023

Yvonne Livingstone

Verified purchase

5/5

Reviewed 18/03/2023, United Kingdom.

I'm pleased with my purchase from PhoneMart, including the phone's quality, packaging, and delivery.

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition ExcellentPurchased 06/03/2023

Jay Collins

Verified purchase

5/5

Reviewed 09/08/2022, United Kingdom.

So far so good. Phone was sold as used but turned up as good as new, and no issues yet.

OnePlus 6T 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 28/07/2022

Common questions about the OnePlus 6T

Durability

Overall performance

Camera

Screen quality

Black

Colour

256 GB

Storage

Unlocked

Carrier compatibility

Compatible with latest update

USB-C

Connector

Foldable

16 megapixels

Front camera

16 megapixels

Main camera

8 GB GB

Memory gb

You get a smartphone designed to handle daily tasks with ease in the OnePlus 6T 2018. Its 6.41 inch Optic AMOLED screen delivers vivid visuals that bring your photos and videos to life, making it a great choice for media and browsing.

The OnePlus 6T 2018 offers 8 GB of memory that keeps your apps running smoothly, even when multitasking. Unlocked and compatible with 4G networks, it fits well for anyone needing reliable connectivity and dual SIM support for balancing work and personal life.

Key features

Carrier: Unlocked for any network
Screen: 6.41 inch Optic AMOLED, 1080 x 2340 resolution
Memory: 8 GB RAM for smooth multitasking
Camera: 16 MP front and main cameras
SIM: Dual Physical SIM for flexible use
Mobile network: 4G connectivity

Who is this for?

The OnePlus 6T 2018 is well suited for anyone who needs a dependable smartphone for everyday apps like social media, messaging, and streaming. If you want a clear, vibrant screen for watching videos or browsing photos, this phone delivers.

It's also a solid pick for people who require dual SIM capability to manage separate personal and work numbers. With 8 GB of memory, it handles multitasking comfortably for most daily routines.

What you get and what to know

What you get	Good to know
Screen size 6.41 inch Optic AMOLED display	Mobile network Supports 4G connectivity
Memory 8 GB RAM for responsive use	Operating system Runs an Android version without latest updates
SIM cards Dual Physical SIM slots	Connector Uses USB-C for charging and data

Why buy it refurbished?

Choosing a refurbished OnePlus 6T 2018 means you get a fully tested smartphone that meets strict quality standards. Each device passes up to a 100 point inspection covering screen condition, battery health, cameras, input and output ports, sensors, and more.

Every phone is factory reset and graded on cosmetic condition while guaranteeing full functionality. Buying refurbished also supports sustainability by extending the device's life and reducing demand for new materials.

ColourBlack

Storage256 GB

Carrier compatibilityUnlocked

Compatible with latest updateNo

ConnectorUSB-C

FoldableNo

Front camera16 megapixels

Main camera16 megapixels

Memory gb8 GB GB

Mobile network4G

OsAndroid

Resolution1080 x 2340

Sar head1.55

Screen size in6.41 inch

Screen typeOptic AMOLED

Sd card slotNo

Sim cardDual Physical SIM

Weight185 g g

Year of release2018

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OnePlus 6T256 GB•Black

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What you get and what to know

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