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Introduction: Apple’s Quiet War on Health AI Is Slipping Behind Schedule
Apple has been positioning itself for years as a dominant force in digital health, but its most ambitious project yet—an AI-powered health coaching system known internally as Project Mulberry—is now facing repeated delays. Initially expected to redefine how users interact with Apple Health data, the system has been pushed back multiple times, signaling internal uncertainty about its readiness and competitiveness. At the same time, Apple is preparing to refine one of its most important wearables features: Apple Watch heart-rate tracking. While not as flashy as an AI coach, this improvement could become the foundation that Mulberry ultimately relies on.
30-Line the Original
Apple has been working on an AI health coach project called Project Mulberry for nearly a year.
The system is designed to analyze Apple Health data and provide personalized health insights.
It was originally expected to launch with a redesigned Health app in iOS 26.4.
However, the project was scaled back earlier this year.
Bloomberg’s Mark Gurman reports that the feature is still in development.
It may now arrive during the iOS 27 release cycle instead of earlier versions.
There is uncertainty about whether it will ship at the start or later in the cycle.
Apple is also working on improving Apple Watch heart-rate tracking in watchOS 27.
This update will focus more on stability and performance than major features.
Only minor refinements and improvements are expected overall.
Heart-rate tracking accuracy is one of the key areas targeted for upgrades.
Apple Watch data refresh rates may become more consistent.
This could improve real-time health monitoring.
Some users currently find third-party devices like WHOOP more accurate.
Apple’s issue is seen less as data collection and more as interface design.
Project Mulberry originally aimed to offer AI-driven coaching during workouts.
Users may have been able to share live camera feeds with the AI system.
The AI could then provide real-time exercise feedback.
Apple also planned a subscription-based service called Apple Health+.
The health coach is now delayed due to internal restructuring.
Eddy Cue reportedly played a role in scaling back the project.
Apple is concerned about competing with existing health subscription services.
The company wants to refine the product before launch.
The redesigned Health app may still arrive in iOS 27.
However, the AI coaching features may be delayed further into the cycle.
Possible release windows include iOS 27.1 or iOS 27.4.
Apple is prioritizing accuracy and competitiveness over speed.
The health initiative remains one of Apple’s long-term strategic goals.
But execution challenges are slowing progress significantly.
What Undercode Says:
Apple’s AI Health Vision Is Powerful but Structurally Unstable
Apple’s ambition with Project Mulberry shows a clear shift toward AI-driven healthcare ecosystems, but the repeated delays suggest deeper structural issues in aligning hardware, software, and AI capabilities into a seamless health experience.
WatchOS 27 Is Quietly Becoming a Foundation Layer for Future AI Health Systems
While not flashy, incremental improvements in heart-rate tracking may serve as essential infrastructure for future AI coaching, where real-time biometric accuracy determines the usefulness of the entire system.
Competitive Pressure from Wearable Ecosystems Is Forcing Apple to Reevaluate Strategy
With competitors like WHOOP offering more granular health insights, Apple is being forced to reconsider not just features but how it presents and interprets health data within its ecosystem.
The Real Bottleneck Is Not Hardware but Health Data Interpretation Layers
Apple Watch already collects large amounts of data, but the real limitation lies in translating that data into meaningful, actionable insights that users can easily understand and trust.
Interface Design May Be Apple’s Hidden Weak Point in Health Innovation
Despite Apple’s reputation for UX excellence, its Health app ecosystem still struggles with clarity, which becomes critical when dealing with complex biometric data streams.
AI Coaching Requires More Than Just Models—It Needs Behavioral Trust Systems
A health coach must not only be accurate but also trusted by users, meaning Apple must design systems that avoid overreach while still offering meaningful guidance.
Project Mulberry Delay Suggests Internal Product Identity Conflict
The shift in timeline and scope indicates Apple may still be trying to decide whether Mulberry is a premium subscription service, a Health app feature, or a deeply integrated OS-level assistant.
Subscription Strategy Pressure May Be Slowing Down Innovation
The potential Apple Health+ model introduces monetization pressure, which could be contributing to caution in releasing a product that may not immediately justify its cost.
Apple Watch Evolution Is Moving Toward Passive Intelligence Collection
Future iterations of Apple Watch may rely less on user interaction and more on continuous background analysis to feed AI systems.
Long-Term Strategy Points Toward a Fully Integrated AI Health Ecosystem
Despite delays, Apple appears committed to building a unified system where hardware, AI, and health services merge into a continuous feedback loop.
🔍 Fact Checker Results
Timeline Consistency of iOS 27 Claims
The reported iOS 27 timeline aligns with Bloomberg’s historical accuracy on Apple roadmap leaks.
Project Mulberry Status Verification
Multiple reports confirm the project has been scaled back rather than canceled.
Heart-Rate Tracking Improvement Claims
No exact technical specifications have been officially disclosed yet.
📊 Prediction
Gradual Launch Instead of Full AI Health Revolution
Apple is likely to release Project Mulberry in phases rather than a full feature rollout, starting with limited AI insights before expanding into real-time coaching.
Apple Watch Becomes Central Sensor Hub for AI Health
Future Apple Watch models will likely prioritize sensor accuracy and data frequency as the backbone of Apple’s health AI strategy.
Health+ Subscription Will Launch But With Conservative Features
Apple Health+ is expected to arrive, but with fewer AI capabilities than initially rumored, focusing first on basic analytics and guided insights rather than full coaching autonomy.
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Reported By: 9to5mac.com
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