The Vitals App
You can view the last seven days of sleep in the Vitals app on your Apple Watch. While it’s true that you can check all these statistics individually in your Health app on your iPhone, the Vitals app places them in context with a handy graph, along with lifestyle-orientated prompts and actionable advice to bring those vitals back to your baseline levels.
For example, when you wake up, your Vitals app may prompt you with the message “your heart rate and wrist temperature were higher than normal. This could be due to many factors including illness or alcohol consumption.” Other wearables that focus on holistic health rather than fitness, such as the Oura Ring, track these biomarkers during sleep to predict oncoming illness, so it’s great to see Apple Watches finally get these tools too… More here.
This could be big for Apple in a fight against lifestyle wearables that aim to track your general health. Now, if only they could make a non-Ultra-sized Apple Watch that had the battery to handle it.