More sustainable than new

OnePlus 6T 128GB - Black - Unlocked - Dual-SIM

1 / 3.
Pay with Klarna.

Free delivery

Comes with

Charging cable

Get this for even less
Assessment takes 2 minutes and you’ll get an offer instantly. If the price is right, settle up your cart to make it official.
Like from . We’ll buy back your old tech for cash.


OnePlus 6T's customer reviews


9 verified reviews in the last 6 months.

  • J

    Jimmy M.

    Purchased on the 6 May 2024


    Phone delivered next day. The phone is in a "as new" condition. Absolutely highly recommended!

    Reviewed in United Kingdom on 1 July 2024

    OnePlus 6T 128GB - Black - Unlocked - Dual-SIM
  • M

    Michael M.

    Purchased on the 9 March 2024


    Its what i needed and more.

    Reviewed in United Kingdom on 24 March 2024

    OnePlus 6T 128GB - Black - Unlocked - Dual-SIM
  • B

    Brian O.

    Purchased on the 16 February 2024


    Okay, so. . . customer service acted professional in most cases except one, they had great communication, they were prompt in replies and were courteous but i'll get to the negative issue at the end, The phone iteself came very quickly in the post, great job there, and it was well packaged, The quality of the phone state, when I looked at the screen, it was very impressive for a second-hand phone, it looked brand new, no scratches, and when I turned on the phone, it looked even better, Now the negative customer service issue, Before buying the smartphone I asked the customer service agent for the exact android version of the phone, they replied that it would be either android 9 or 10, I said can you double check it yourself or with the seller? They said no we can't, I said if it's android 9 or 10 that's fine but I don't want it to be android 11, they said it would be 9 or 10, And when I checked the version after turning on the phone, it was 11, Now, because i'm tech savvy, I was able to modify the phone and install android 10, but here's the thing, most people would be pissed if they asked to have a specific version and not to have another version, only to find out that they ...

    Reviewed in Ireland on 4 March 2024

    OnePlus 6T 128GB - Black - Unlocked - Dual-SIM
  • G

    Guy M.

    Purchased on the 9 March 2024


    Kauppa sujui hyvin ja puhelin tuli nopeasti. Tosi siisti kunto, akku aika tuntuu lyhyeltä, vähäisellä käytössä kestä vain reilun päivän. Sormenjälki käy hyvin ladata, mutta ei onnistu tunnistaminen vaikka kuinka yrittää!

    Reviewed in Finland on 26 March 2024

    OnePlus 6T 128GB - Black - Unlocked - Dual-SIM
  • E

    Erik S.

    Purchased on the 27 February 2024


    Wie immer super zustand und schnelle lieferung

    Reviewed in Germany on 13 March 2024

    OnePlus 6T 128GB - Black - Unlocked - Dual-SIM
  • S

    Stefano P.

    Purchased on the 4 March 2024


    todo muy bien,el telefono va de como un misil....gracias.

    Reviewed in Spain on 1 July 2024

    OnePlus 6T 128GB - Black - Unlocked - Dual-SIM
  • B

    Bertrand J.

    Purchased on the 28 January 2024



    Reviewed in France on 12 February 2024

    OnePlus 6T 128GB - Black - Unlocked - Dual-SIM
See all 9 reviews

Reborn vs. brand new

Here’s what you help prevent on average by choosing a reborn smartphone over a brand new one.

77.3 kg of carbon

That’s like driving an old banger from London to Edinburgh and back.

6.3 oz of e-waste

That’s around the weight of a baseball.

537.1 lbs of raw materials

That's like 20 dogs digging in your yard for a week.

77,000 litres of water

That's like running a faucet for 3 days

Everything you ever wanted to know about the OnePlus 6T

OnePlus 6T 128 GB (Dual Sim) - Mirror Black - Unlocked

Our partners are electronics experts who test and verify that each product is 100% functional before it leaves the factory. This is the reason you benefit from a minimum 1-year warranty with the purchase of a refurbished device at Back Market.

OnePlus 6T 128GB - Black - Unlocked - Dual-SIM

  • Colour : Black
  • Screen size (in) : 6.41
  • Storage : 128 GB
  • Memory : 8 GB
  • Model : OnePlus 6T
  • OS : Android
  • Resolution : 1080x2340
  • Connector : USB-C
  • Network : 4G
  • SIM card : Unlocked
  • SD Card Slot : No
  • Camera Type : Double (2x)
  • Manufacturer Ref : A6010
  • Year of Release : 2018
  • Series : OnePlus 6
  • Foldable : No
  • SIM card : Dual-SIM
  • Color (official name) : Mirror Black
  • Product type : Refurbished
  • Double SIM : Yes
  • SAR head : 1.55
  • Brand : OnePlus
  • Weight : 185 g

Welcome to Back Market

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
  • 1-year minimum warranty
  • Free delivery on all items
  • Free 30-day returns
  • Awesome customer service