Be sure to visit our WWDC 2017 hub for all the latest news from Apple's big event.
Siri now shows an information stream quite like Google Now on your Apple Watch. As well as being customizable, faces can now dynamically change based on various criteria, such as location and time of day.
Other watch faces include more characters from the Toy Story as three new characters have joined Micky and Minnie.
watchOS 4 is also gaining a host of new features to help you get the most out of your workout.
You will also be able to chose a playlist that automatically stats playing as soon as you start sweating it out in the gym.
The standard Apple Watch is available in 4 different casings, including rose gold and silver, and comes equipped with a sports band, priced at $269. Apple's watchOS 4 can also communicate with popular gym equipment so users can track their activity on a treadmill, elliptical, and other products.
Listening to music is more personal than ever with a redesigned Music app that automatically syncs your New Music Mix, Favorites Mix and most listened to music.
The long awaited Apple Worldwide Developers Conference 2017 (WWDC 2017) has officially begun. Apple have just made it even better, with achievable daily and monthly challenges, High Intensity Interval Training, and auto logging swimming laps.
Jorge Sampaoli: New Argentina boss holds Lionel Messi talks
But their hopes are on a knife edge in the 10-nation South American group from which the top four qualify for Russian Federation . Former Sevilla boss Jorge Sampaoli has been unveiled as Argentina's new Coach after signing a contract until the 2022 World Cup.
iOS 11's features will be improved slightly, with iMessages synchronizing with other devices and saving space by uploading old photos to the Apple Cloud.
WatchOS is an Apple-developed operating system that powers Apple Watch devices.
WatchOS 4: What is WatchOS? It will sport a trippy animation that changes over the day, and when users rotate digital crown.
The Apple App Store is also getting a revamp, picking up clues from Apple Music's design which has apparently been successful with the public.
The Workout app in watchOS4 will also have some specific exercise updates as well.
Siri Watch face: Siri is an automatic face that pops contextual notifications into a continuous scroll of info.
This works specifically with gym equipment.
Starting today, watchOS developers will be able to download the first preview of watchOS 4 - while the first public versions of the OS will be released later on this fall. Native core bluetooth support, for example, is coming to Apple Watch. Attendees get direct access to Apple engineers, and can participate in a variety of in-depth sessions covering a wide range of subjects.