iOS 27.3 reintroduces the redesigned Health app previewed in September. Apple tested the new Health app in the iOS 27.2 beta, but it was removed before the update launched.

The Health app has been updated, and there are new Insights and Longevity tabs that show more information about your health and fitness metrics.

The Insights tab includes your most recent health data, like Activity Rings, heart rate, sleep score, and vitals. Apple Intelligence will use that information to offer Personal Guidance. The Health app will be able to make suggestions based on your goals and what kinds of activities you do.

Apple Watch Series 12 and Apple Watch Ultra 4 wearers will see their readiness score in the Insights tab as well as on the watch. The readiness score is meant to help you decide whether to push yourself harder, take a recovery day, or work out as usual.

A redesigned Vitals section has overnight and daytime views, and HRV has been added as a metric.…