From GSM Arena, at the New York event:
It's an ultra-thin and lightweight computer running on the Snapdragon 855 platform that offers full-fledged PC experience thanks to Windows 10 OS.
The Galaxy Book S offers a 13.3-inch Full HD touchscreen, Snapdragon 855 chipset paired with 8GB of LPDDR4X RAM and up to 512GB of internal storage with support for microSD cards up to 1TB. A 42Wh battery provides the juice and Samsung promises up to 23 hours of video playback time.
The Galaxy Book S should arrive 'in the Autumn' in 'select markets' in two colours - Mercury Gray and Earthy Gold, in premium anodized aluminum and it weighs just 0.96 kg and has just 12mm depth.
It uses Quick Charge 2.0 and Power Delivery 2.0 standards for charging via USB Type C, though you only get one port, so you may have to swap cables around from time to time and a portable hub is recommended. As the chipset would suggest, there's LTE Cat.18 data as well as Wifi for connectivity.
No need for a standalone fingerprint reader though, since one is built into the keyboard, to support Windows Hello. There are also AKG-branded loudspeakers and Dolby Atmos enhancements.
The Galaxy Book S will run all the UWP applications that you know and love from Windows 10 Mobile, of course, plus legacy WIn32 applications via emulation.
Pricing is expected to start around £1000 in the UK.