https://techcrunch.com/2018/09/12/apple-watchos-5-ships-on-september-17/

Apple today formally introduced the next generation of Apple Watch devices, the Series 4. Alongside the new devices, the company announced the updated watchOS 5 mobile operating system will ship on September 17.

The new version of watchOS was first shown off at this year’s Worldwide Developer Conference keynote, where flagship features like the Walkie-Talkie mode, smart Siri watch face, updated Podcast app, support for Siri shortcuts, and a “Raise to Speak to Siri” feature were highlighted.