Apple Watch Series 12, Ultra 4 Have Wearables' “Most Accurate Heart Rate Sensing"

The Apple Watch Series 12 has 'the most accurate heart rate sensing in a wearable' — here's where to preorder Apple's newest smartwatch

The Apple Watch Series 12 is officially available for preorder, and I'm rounding up the best preorder deals and prices for Apple's newest smartwatch.

Apple Watch Series 12, Ultra 4 have wearables' “most accurate heart rate sensing"

New Apple Intelligence features, too.

Apple advances health and fitness capabilities using Apple Intelligence and the most accurate heart rate sensing in a wearable

CUPERTINO, Calif.--(BUSINESS WIRE)--Sep 9, 2026-

Apple Watch Series 12: The Most Accurate Heart Rate Sensor Yet, Plus a New Readiness Score

Apple just pulled the wraps off Apple Watch Series 12, and this is the biggest health upgrade the Watch has seen in years. At the center of it all is something Apple is calling the Health Sensing System, a rebuilt... Read more at Apple Watch Series 12: The Most Accurate Heart Rate Sensor Yet, Plus a Whole New Way to Read Your Body