iOS 27.3 adds smarter Siri actions, redesigned Health app and Fitness+ workouts

Apple's latest iOS update promises to make the iPhone feel noticeably smarter around the house. The first beta versions arrived this week, and they contain a mix of practical assistant upgrades, health changes, and watch improvements.

Siri gets more chores

Siri can now do things beyond simple requests. Users can ask it to unsubscribe from mailing lists, organize files, and manage open browser tabs in Safari ¹. In the Weather app, Siri can save locations and toggle alerts for severe storms or rain arriving within the next hour . These additions cover common frustrations, though finding every trick still requires some digging .

For developers, a separate preview reveals a more flexible way to connect outside apps to Siri. Companies can supply their own custom actions and skills, letting the assistant juggle multiple steps in a single request ¹. The App Store will begin accepting these integrations in spring .

Health, Fitness and Music round out the update

The Health app returns with two new sections called Insights and Longevity, turning raw measurements into clearer guidance and longer-term wellness assessments ¹. The Fitness+ service gains "Gym Strength," which builds four-week personal plans based on what equipment you have at home and your workout preferences . Short demonstration clips show correct form without forcing you to follow a full video session . The initial beta's scheduling choices and equipment menus leave room for improvement .

Other surprises include vertical browser tabs in Safari, an Adaptive Dark Mode that forces websites without their own dark theme into one automatically, improved Apple Music transitions with concert suggestions, and karaoke videos called Selfie Sing ¹. The iPhone Duo gains horizontal Reachability and a revised keyboard to make its wider outer screen easier to use one-handed . StandBy mode clocks, calendars and weather are expanding to more iPhones as well .

Apple Watch learns to replay conversations

On the wrist, Live Rewind captures a transcription of the previous 15 seconds of speech, while Siri Recap creates detailed summaries of entire conversations — useful for catching up after a long meeting ¹. Both features support time-based and location-based scheduling so they only activate when needed .

This report draws from the MacRumors Show episode covering the iOS 27.3 betas ¹.

How good is it

The sources do not report any independent tests, rival comparisons, or scored benchmarks for iOS 27.3. The initial beta's Equipment selection and scheduling options in Fitness+ nevertheless leave room for improvement ¹. Overall no quantitative performance results are provided for this update .

Corrections and updates

• Corrected on 9 November 2026. An earlier version said beta testers noted that scheduling and equipment felt rough around the edges; the article states the initial beta's options leave room for improvement, without attributing complaints to testers. An earlier version said the first two beta versions arrived this week; the source only refers to 'first 27.3 betas' in plural without specifying a count of two.

Key facts

• iOS 27.3 first betas were released for testing in November 2026
• Siri gains new actions: unsubscribing from mailing lists, organizing files, managing Safari tabs
• Third-party Siri integrations scheduled to open in spring via App Store submissions
• Fitness+ gains Gym Strength with personalized four-week plans based on available equipment
• Apple Watch gets Live Rewind (15-second transcription replay) and Siri Recap (conversation summaries)

Sources

1. The MacRumors Show: iOS 27.3 Looks Like a Huge Update — macrumors.com

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