OnePlus has just introduced a new version of the OnePlus 3: the OnePlus 3T.

The company unveiled the device via Facebook Live. Here's everything you need to know about what happened, including how to watch the event after the fact. If you'd like to learn more about the device, check out Pocket-lint's guide.

OnePlus hosted the launch of the OnePlus 3T on its own Facebook page at 6pm UK time. It used Facebook Live to bring you all the news as it happened. Here's the livestream video in full in case you want to catch up:

OnePlus unveiled the OnePlus 3T. The new Android smartphone has a 3,400mAh battery and a 2.35GHz Snapdragon 821 processor. In real-life use, that should mean the phone lasts longer on a full charge and can tackle larger apps and games without much effort. For reference, this is the same processor that's found in both the Google Pixel and Google Pixel XL, which launched last month.

On the back, there's a 16-megapixel sensor built by Sony, complete with an f/2.0 aperture lens, 4K video recording and a new-and-improved EIS (Electronic Image Stabilisation) system. Vitally, the improved camera is protected by an improved glass.  Like the OnePlus 3, the camera also has a number of software features like RAW image support, Dynamic De-noise and a HQ mode.

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Like its predecessor, the 3T features a 5.5-inch full HD Optic AMOLED screen coated in Corning Gorilla Glass 4. But one of the best features the 3T brings across from the OnePlus 3 is Dash Charge, the company's fast-charging technology. The OnePlus 3T will be available to buy with 64GB or 128GB storage, both of which come with a generous 6GB RAM in soft gold or gunmetal grey.

While it's not running Android 7.0 Nougat (yet), it does bring the new mobile OS' enhanced doze mode for improving standby battery. In the UK, you'll be able to grab a OnePlus 3T for £399. In the US (from 22 November) and Europe, it'll cost $439 and €439, respectively.  

Read: OnePlus 3T review: The best mid-price phone money can buy