Apple has officially announced the Apple Watch Series 12 and Apple Watch Ultra 4, launching on September 18 with starting prices of 71,800 yen and 142,800 yen respectively. The new hardware features a redesigned health sensing system, on-device Audio Intelligence powered by Apple silicon, and advanced readiness scoring.
Hardware Lineup, Pricing, and Structural Durability
The Apple Watch Series 12 introduces significant material upgrades. According to official release details, the aluminum model features a front-facing Ceramic Shield 2, which offers a 60 percent improvement in durability compared to the Ion-X glass used on previous generations. The Series 12 aluminum variant is available in dark bronze, black, light gold, and space grey. Titanium editions come in radiant gold and natural finishes, while ceramic options span pearl white and night blue. Base pricing for the Series 12 starts at 71,800 yen.
The rugged Apple Watch Ultra 4 targets high-performance use cases with a black titanium and natural titanium color lineup, alongside a newly designed titanium Hermès strap. The Ultra 4 maintains an extended battery profile, delivering up to 50 hours of normal use, up to 84 hours in low-power mode, and up to 45 hours of continuous outdoor workout tracking. The Ultra 4 starts at 142,800 yen, with pre-orders opening immediately and retail availability slated for September 18.
Advanced Health Sensing and Readiness Metrics
Both flagship wearables incorporate a revised health sensing architecture. The heart rate measurement suite has been entirely rebuilt, and heart rate variability (HRV) metrics are now integrated directly into the Vital app to monitor autonomic nervous system changes throughout both day and night cycles.
Building on these foundational sensors, the operating system introduces a new “Readiness” score. This algorithm analyzes recent activity data, vital signs, and sleep metrics to output a single consolidated score. Users receive categorization indicators such as “Rest,” “Take it easy,” “Ready,” and “Peak condition” to quantify physiological recovery.
To aggregate these insights, Apple plans a major redesign of the iOS Health app in late 2026. This overhaul incorporates personalized guidance driven by Apple Intelligence, summarizing fitness metrics and providing tailored recommendations. The initial rollout will launch in US English before expanding to additional languages.
On-Device Audio Intelligence and Accessibility Features
The integration of Apple silicon with updated internal microphone arrays enables a suite of AI-driven audio features collectively termed Audio Intelligence. Operating entirely on-device, these tools process ambient acoustic environments in real time.
The Sound Recognition utility detects specific environmental cues—such as infant cries or doorbells—and dispatches immediate notifications to the wrist, functioning independently even when an iPhone is out of range. This capability directly enhances digital accessibility for users with hearing impairments.
For conversational workloads, the new Live Rewind feature allows users to review the previous 15 seconds of audio translated into text. Complementing this, Siri Recap generates concise summaries of verbal exchanges. Both Live Rewind and Siri Recap are scheduled for a late 2026 beta release, initially supporting English.
Market Context and Pre-Order Strategies
The simultaneous launch of the Series 12 and Ultra 4 establishes a unified baseline for wearable health analytics.
Worth a look
