The day we've all been waiting for is here: today Samsung will unveil what is expected to be one of the best new phones of the year. We will have reporters at the launch who will bring you real-time announcements and expert analysis from the event, and you'll also be able to view a live stream at the top of this page.
You can view the latest Galaxy S8 rumours and news in full detail, or read our notes at the bottom of this page for a summary of what to expect from Samsung's upcoming Android flagship.
When is the Samsung Galaxy S8 launch event?
The Galaxy S8 and larger Galaxy S8 Plus will be announced during a Samsung Unpacked event this afternoon (Wednesday 29 March 2017) at 4pm BST (11am EDT/5pm CET).
The event will take place in the David Geffen Hall, Lincoln Center in New York City. In the UK press will be shown a satellite broadcast of the US event at Here East, the 2012 Olympic Press and Broadcast Centre.
A separate launch event will be held in Korea on 30 March.
How can I watch the Galaxy S8 announcement live stream?
The easiest way to watch a real-time feed of the Galaxy S8 launch is to view the video we will be embedding at the top of this page, but you have other options too.
If you'd rather watch on a PC or laptop you can tune in live at Samsung's website. This video will also be broadcast live on YouTube, which you can stream through the YouTube app on any compatible device, including connected TVs.
Another option, if your internet connection is too flaky for a live stream or you don't have the time to sit and watch, we'll be live-blogging the event's proceedings below.
Samsung Galaxy S8 launch live blog
What are the rumoured features and specifications of the Galaxy S8?
The Galaxy S8 is thought to have undergone a radical redesign in the past year, with the dual-curved-edge screen we previously saw only on the Plus variant now standard across the range. This screen will also be larger - up to 5.8in on the Galaxy S8 and 6.2in on the Galaxy S8 Plus - and feature a higher WQHD+ resolution. There may also be a Force Touch feature.
The display will take up a much larger proportion of the front of the device, as shown in the below image (courtesy of @evleaks), and to accommodate the home button is said to have been removed and the fingerprint scanner moved to the rear in what looks to be a rather awkward position next to the camera. At the front a new iris scanner (as seen in the ill-fated Note 7) may make unlocking the new phone easier.
From the side Harman Kardon stereo speakers will be visible, as well as a new USB-C port and a dedicated button to launch the already confirmed Bixby virtual assistant. Bixby is said to be more intelligent than the likes of Siri, more easily able to understand your commands even when they don't follow an exact formula. Read more details on What is Bixby.
The waterproof (IP68) Galaxy S8 is thought to be available in colours including Black Sky, Orchid Grey and Arctic Silver; a Gold version is also tipped.
Inside you will find the Snapdragon 835 processor, a new 10nm chip manufactured in partnership by Qualcomm and Samsung that integrates the Adreno 540 GPU. In comparison to the Galaxy S7, @evleaks says the S8 is 11 percent faster overall and 23 percent faster in graphics processing, yet it is also 20 percent more energy efficient. (In some territories the Galaxy S8 may come with the Exynos 8895 instead.) Also see: Galaxy S7 vs Galaxy S8 preview
This chip will likely be paired with 4GB of RAM (a 6GB version may be available in China), and 32- or 64GB of storage with microSD support up to 256GB. Batteries are tipped to be rated at 3,000- and 3,500mAh for the standard and Plus models respectively, with support for adaptive fast charging and fast wireless charging.
It's not yet known whether Samsung will opt for a dual camera for one or both of its smartphones, though we have heard rumours of a 12Mp f/1.7 camera at the rear and an 8Mp front-facing selfie camera with its own autofocus.
So the specs are good, but what about the price? With a SIM-free RRP thought to start from £799 or £809 (799€/809€) for the standard Galaxy S8 and £899 or £909 (899€/909€) for the Galaxy S8 Plus, you will be paying more for the Galaxy S8 than you did any Galaxy smartphone before it - even if you buy it on a contract. A couple of months after launch the phones will likely be available at a lower price point.
The word on the street is that the Galaxy S8 will be up for pre-order on 7 April, with the phone officially going on sale on 28 April, though pre-orders may ship a week earlier.
There's also an outside chance that the Galaxy S8 may share its big reveal with news that refurbished Galaxy Note 7 models are returning to the market (outside the US), though potentially going under a new name.