APPLE WATCH WELLNESS

Your current stress index,
from your baseline.

Body widget uses qualifying SDNN HRV to show an HRV-based Initial estimate, then personalizes it as qualifying records accumulate.

Preparing for release on the App Store. The app is preparing to launch as a one-time purchase for US$4.99 in the United States.

Current estimated stress index · Example

62/ 100

A higher score indicates relatively greater burden in qualifying recent physiological signals.

PERSONAL BASELINE

Read health records in the context of you.

0–100 estimated stress index
An HRV-based Initial estimate can be provided from a qualifying one-minute SDNN HRV record. Nearby heart rate in sedentary context can add supporting context when available. As qualifying records accumulate, the estimate is gradually personalized to your history. It is a product estimate, not a validated measure of mental stress, a diagnosis, or a clinical performance measure.
Qualifying recordsQualifying SDNN HRV can provide an Initial estimate; nearby heart rate in sedentary context adds supporting context when available.
Personal baselineA qualifying one-minute record can provide an Initial estimate. As records accumulate, it is gradually personalized to your history.
Latest available stress estimateIt reflects qualifying records already available; background updates are not guaranteed.

ON YOUR WATCH

See recovery and burden together.

Body widget

Check your day’s energy flow with the outer ring and central indicator.

Sleep and activity

Review sleep and activity in the context of your day.

Estimated tension

Read supported intervals and manual entries as hours and minutes, such as 1 h 0 min.

Trends and check-ins

Look back on recent change alongside check-ins you record.

Mindfulness

Sessions you start can be written to Apple Health.

Complications

See the current estimated stress index on your watch face when an estimate is available.