https://www.theverge.com/2018/6/4/17418120/new-apple-watch-features-watchos-update-wwdc-2018

Apple’s popular smartwatch will be getting a new software update later this year in the form of watchOS 5. It will add new features for health and fitness tracking, as well as software that aligns with the screen time limitations that are coming with iOS 12 on the iPhone and iPad.

For health and fitness features, watchOS 5 will let you challenge your friends to competitions up to seven days in length. It will also include new workout types for yoga activities and hiking. Runners will benefit from improved tracking for your pace and cadence. Perhaps most significant is the new automatic workout tracking, which will prompt you to track an activity when it detects that you might be working out. It will even work retroactively if you don’t start the tracking right at the beginning of your workout.