iOS 27.3 Code Points to Siri AI Reading Health Data

The iOS 27.3 beta ships with two disabled feature flags that would let Siri AI read Health data on your iPhone, according to a new code find. Both flags are switched off, and there is no easy way to turn them on in iOS, so nothing changes on your iPhone yet.

pdfu found the flags in beta 1 and posted them on X. If Apple turns them on, you could ask Siri AI about your sleep, workouts and Activity rings and get the answer back as a custom visual. The flags would pair with the redesigned Health app, which Apple says arrives later this year as a free software update.

Three iPhone 18 Pro screens showing Health Age, cardio fitness and readiness in the redesigned Health app

Siri AI Cannot Read Health Data Yet

Siri AI cannot read Health data on your iPhone at the moment, which is the gap these flags appear to address. Siri can read and write some Health data, such as blood pressure and body temperature, on an iPhone running iOS 17.2 or later, but only when your Siri language is English (United States) or Mandarin Chinese for the China mainland.

The redesigned Health app already gathers heart, sleep, readiness, fitness, vitals and cycle tracking data in its Insights tab, so Siri AI would have plenty to answer from. The Readiness score is one example, a number from 0 to 10 that needs an Apple Watch Series 12 or Apple Watch Ultra 4.

Two Flags Cover Queries and Visuals

IF/HealthSearch is the first flag, and it adds Health to Siri AI’s find tool. pdfu says it can search recent readings and historical summaries across 92 HealthKit data types.

The same flag adds dedicated queries for the areas of the Health app below.

  • Activity rings
  • Individual workouts and workout summaries
  • Readiness
  • Sleep summaries
  • Medication schedules and logs
  • Health Age and health assessments in the new Health app

Vitals is not on that list, even though the Insights tab covers vitals next to readiness and sleep.

IF/HealthSnippets is the second flag, and it lets Siri AI show custom visualizations for the kinds of answers below.

  • Health statistics
  • Activity rings
  • Individual workouts
  • Workout summaries
  • Sleep summaries

Both Flags Are Switched Off

The flags are disabled in beta 1, and pdfu says there is no easy way to enable feature flags on iOS or watchOS. Flags like these can change or disappear before a release, and Apple has not announced Siri AI access to Health data.

Apple pulled the redesigned Health app from iOS 27.2 before that update shipped, and the app returned in the iOS 27.3 beta on November 3.

pdfu also found that the same beta sends about 2% of English Siri AI requests to a local model. iOS 27.3 is due for release in December.

Newsletter
Never miss an Apple story
One email a day, the news that matters. No spam, unsubscribe anytime.
About the Author

Imran Hussain is the founder and editor of iThinkDifferent, which he launched in 2008 to cover Apple news, reviews, and how-to guides. He has spent over 15 years writing about iOS, macOS, and the wider Apple ecosystem, with a focus on hands-on guides - installing developer betas, troubleshooting, and walking through new features on his own devices. Based in Dubai, he also loves to cover photography, gaming, and the tech industry more broadly on his social media profiles.

Leave a Reply