{
  "id": 6760736,
  "title": "Apple shares the data behind Apple Watch Series 12’s biggest health claim",
  "url": "https://urgent.news/2026/09/11/apple-shares-the-data-behind-apple-watch-series-12s-biggest-health",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-11T13:37:20.000Z",
  "source": {
    "name": "9to5Mac",
    "slug": "9to5mac",
    "url": "https://9to5mac.com/2026/09/11/apple-shares-the-data-behind-apple-watch-series-12s-biggest-health-claim/"
  },
  "original_language": "en",
  "account": "Apple announces the results of a new study comparing the heart rate sensing accuracy of their latest watches with other leading wearable devices. The Apple Watch Series 12 and Ultra 4 boast the most accurate heart rate sensing in a wearable, according to the tech giant. The Health Sensing System at the heart of these new models includes updated optical and electrical heart sensors, along with advanced signal processing algorithms. The study, conducted across five sites in the US and Malaysia, involved 1,460 adults wearing both Apple Watch Series 12 on one wrist and competing devices on the other. A Polar H10 ECG chest strap acted as the reference for comparison. The tests encompassed various activities, from outdoor running and treadmill intervals to strength training and everyday tasks. In total, Series 12 outperformed every competing device in 139 out of 159 comparisons. These findings, along with detailed results, can be found in Apple's nine-page study. The Apple Watch Series 12 and Ultra 4 are set to pre-order on September 18, with the devices launching one week later. Priced at $399 and $799 respectively, both models will be available for pre-order starting today.",
  "summary": "Apple makes a bold claim when it comes to Apple Watch Series 12 and Apple Watch Ultra 4. According to Apple, the new Health Sensing System on both watches “delivers the most accurate heart rate sensing in a wearable.” Apple backs up this claim with a new study that shows how Series 12 heart rate sensing compares to other leading wearables, including smart rings and fitness bands. more…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 9,
    "also_reported_by": [
      {
        "outlet": "The Register",
        "title": "Watch out: Apple timepiece can grab snippets of conversation without both speakers' consent",
        "url": "https://urgent.news/2026/09/10/watch-out-apple-timepiece-can-grab-snippets-of-conversation-without",
        "published": "2026-09-10T19:50:24.000Z"
      },
      {
        "outlet": "Slashdot",
        "title": "Latest Apple Watch Can Grab Snippets of Conversation Without Both Speakers' Consent",
        "url": "https://urgent.news/2026/09/10/latest-apple-watch-can-grab-snippets-of-conversation-without-both",
        "published": "2026-09-10T23:00:00.000Z"
      },
      {
        "outlet": "Mashable",
        "title": "Apple Watch Series 12 vs. 11: Every upgrade, including one Apple didnt mention",
        "url": "https://urgent.news/2026/09/10/apple-watch-series-12-vs-11-every-upgrade-including-one-apple-didnt",
        "published": "2026-09-10T23:14:10.000Z"
      },
      {
        "outlet": "Six Colors",
        "title": "Should your Apple Watch always be listening?",
        "url": "https://urgent.news/2026/09/11/should-your-apple-watch-always-be-listening",
        "published": "2026-09-11T00:13:40.000Z"
      },
      {
        "outlet": "9to5Mac",
        "title": "iPhone Duo, iPhone 18 Pro, Apple Watch Series 12, and AirPods 5 event",
        "url": "https://urgent.news/2026/09/11/iphone-duo-iphone-18-pro-apple-watch-series-12-and-airpods-5-event",
        "published": "2026-09-11T06:08:41.000Z"
      },
      {
        "outlet": "Tom's Guide",
        "title": "All the new audio features on Apple Watch explained",
        "url": "https://urgent.news/2026/09/11/all-the-new-audio-features-on-apple-watch-explained",
        "published": "2026-09-11T08:30:00.000Z"
      },
      {
        "outlet": "AppleInsider",
        "title": "Apple Watch heart rate accuracy vs. rivals: devil is in the details",
        "url": "https://urgent.news/2026/09/11/apple-watch-heart-rate-accuracy-vs-rivals-devil-is-in-the-details",
        "published": "2026-09-11T15:35:44.000Z"
      },
      {
        "outlet": "TechRadar",
        "title": "Is Apple’s Live Rewind a privacy nightmare? Here’s how the Apple Watch feature really works — and whether it violates your privacy",
        "url": "https://urgent.news/2026/09/11/is-apples-live-rewind-a-privacy-nightmare-heres-how-the-apple-watch",
        "published": "2026-09-11T16:25:26.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}