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Apple Watch Series 12, AirPods 5 and iOS 27: What’s New
Apple’s September lineup adds five second background heart rate readings and a Readiness score to Apple Watch Series 12, puts ANC in $129 AirPods 5, and releases iOS 27 on September 14. Apple Watch Series 12 starts at $399 and AirPods 5 at $129; both are available starting September 18.
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Key takeaways
- Apple’s September lineup adds five second background heart rate readings and a Readiness score to Apple Watch Series 12, puts ANC in $129 AirPods 5, and releases iOS 27 on September 14.
- Apple Watch Series 12 starts at $399 and AirPods 5 at $129; both are available starting September 18.
- Siri AI begins rolling out in English with iOS 27, with French, Japanese, Korean, Portuguese, and Spanish planned for October.
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openai.comCreate a landscape editorial hero image for this Studio Global article: What did Apple announce about the Apple Watch Series 12, AirPods 5, and iOS 27—including the Watch’s new Health Sensing System, S11 chip, fi. Article summary: Apple’s September announcements center on more continuous health sensing in Apple Watch Series 12, ANC across both AirPods 5 models, and iOS 27 arriving September 14—with its most advanced AI features limited to newer iP. Topic tags: general, general web. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake numbers, clic
Apple’s latest device and software announcements share a common theme: more always-on sensing and more AI-assisted interactions, but with clear hardware and availability boundaries. Apple Watch Series 12 focuses on higher-frequency health data; AirPods 5 makes active noise cancellation standard across its two models; and iOS 27 arrives September 14, though its Apple Intelligence features are limited to supported iPhones. 47
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Apple Watch Series 12: more frequent health measurements
Apple Watch Series 12 introduces Apple’s Health Sensing System and the S11 chip. Its optical heart sensor can take passive background heart-rate readings every five seconds throughout the day, while heart-rate variability (HRV) can be measured as often as every five minutes. Apple describes this as the most frequent sensing ever on Apple Watch. 38
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That added data supports a new Readiness experience: a single score intended to help users judge their capacity for the day. The score draws on health, sleep, and activity information rather than serving as a medical diagnosis. 47
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The S11 also underpins forthcoming Audio Intelligence features. Apple says these tools will help users remember important moments from conversations and stay aware of notable sounds. The company says privacy, security, and accessibility are core to the design, but the announcement materials do not provide a detailed technical account of how these protections work. 52
Materials, price, and release date
Aluminum Series 12 models use Ceramic Shield 2. Apple says the material is 60% tougher than the Ion-X glass used on prior aluminum Apple Watch models. 38
AirPods 5: ANC is now standard
The notable AirPods 5 change is that both open-ear models include Active Noise Cancellation. The entry-level model starts at $129, whereas ANC was previously reserved for the more expensive AirPods 4 variant. 2
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Apple says AirPods 5 can remove up to 50% more external noise than AirPods 4 with ANC. That is an Apple performance claim, and real-world results will vary with fit and surroundings. The new earbuds also have a redesigned acoustic architecture and updated Adaptive EQ, intended to deliver richer sound and more tailored playback. 2
AirPods 5 model differences
| Model | U.S. starting price | What it includes |
|---|---|---|
| AirPods 5 | $129 | Active Noise Cancellation |
| AirPods 5 with Wireless Charging Case | $149 | ANC, wireless charging case, an extra hour of ANC listening time, and swipe volume control on the stem |
The wireless charging case works with Apple Watch chargers, Qi-compatible chargers, and USB-C. 6
With an Apple Intelligence-supported iPhone, AirPods 5 can provide hands-free access to Siri AI and support Live Translation. Siri AI is rolling out as a beta with iOS 27. 6
iOS 27: release date and compatibility
iOS 27 is a free update available September 14. It supports the same iPhone range as iOS 26: iPhone 11 and later, including iPhone SE (2nd generation) and later. 25
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The important distinction is between installing iOS 27 and receiving its Apple Intelligence features. An iPhone 11, for example, can run iOS 27, but Apple Intelligence and Siri AI require an iPhone 15 Pro or later. 19
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Siri AI availability
Siri AI begins rolling out in English with iOS 27. Apple has said support for French, Japanese, Korean, Portuguese, and Spanish is planned for October. Feature access can vary by language and region. 25
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What these announcements mean for buyers
- Choose Apple Watch Series 12 if higher-frequency heart-rate and HRV tracking, plus the new Readiness view, are meaningful upgrades for your routine.
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- Choose the $129 AirPods 5 if you want open-ear AirPods with ANC; move to the $149 version for wireless charging, longer ANC battery life, and stem volume swipes.
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- Treat iOS 27 compatibility and Apple Intelligence compatibility as separate questions. iPhone 11 and newer can install the update, but Siri AI requires at least an iPhone 15 Pro.
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What is the short answer to "Apple Watch Series 12, AirPods 5 and iOS 27: What’s New"?
Apple’s September lineup adds five second background heart rate readings and a Readiness score to Apple Watch Series 12, puts ANC in $129 AirPods 5, and releases iOS 27 on September 14.
What are the key points to validate first?
Apple’s September lineup adds five second background heart rate readings and a Readiness score to Apple Watch Series 12, puts ANC in $129 AirPods 5, and releases iOS 27 on September 14. Apple Watch Series 12 starts at $399 and AirPods 5 at $129; both are available starting September 18.
What should I do next in practice?
Siri AI begins rolling out in English with iOS 27, with French, Japanese, Korean, Portuguese, and Spanish planned for October.