Apple has previewed its much-awaited watchOS 8, the operating system for its Apple Watch.

The latest update to the system will add a number of health and wellness features, with a focus of making the device "even more essential for users to stay healthy, active, and connected".

Set to launch in September/October 2021, watchOS 8 will include an entirely new mindfulness app, as well as updates to its Fitness Plus and Sleep apps – the latter enabling the tracking of respiratory rate during sleep.

New features include the introduction of two new popular workout types – tai chi and Pilates – which will be supported by custom-built heart rate and motion algorithms to provide users with accurate metrics.

Meanwhile, the Breathe app will receive an entirely new session type, Reflect, offering mindfulness sessions as short as one minute – encouraging users to do them "anywhere and at any time".

Each Reflect session welcomes the user with a unique, thoughtful notion to consider that invites a positive frame of mind.

Both the Breathe and Reflect experiences also offer tips to help users get more from each session and feature new animations.

Kevin Lynch, Apple’s vice president of technology, said: “With watchOS 8, we’re bringing more convenient access to places users live, work, and expanding support for both physical and mental wellbeing.

"Now more than ever, people are recognising the importance of finding small moments in their day to be more mindful."

For more information on the watchOS8, click here.