# Apple Watch has a hidden feature for tracking a healthy daily habit

Source: https://idevice.com/apple-watch-has-a-useful-hidden-feature-for-tracking-a-great-healthy-habit
Published: 2026-04-23

## What happened

Apple Watch has quietly tracked daily sunlight exposure using its ambient light sensor since watchOS 10 launched in 2023, with years of data stored and searchable in the Health app.