Apple unveils Apple Watch Ultra 4
Engineered with the new Health Sensing System and S11 chip, Apple Watch Ultra 4 delivers the most accurate heart rate sensing in a wearable,1 higher-frequency heart rate and heart rate variability (HRV) measurements, and a new readiness score to support athletes of all kinds. Apple Watch Ultra 4 also offers extended battery life to track outdoor workouts for up to 45 hours and the most accurate on-device GPS in a sports watch.2 A redesigned Health app on iPhone arrives later this year, including a new Longevity tab with a Health Age feature showing how metrics are tracking relative to a user’s age. In addition to powering the Health Sensing System, the S11 chip — Apple’s most powerful wearable chip — enables new Audio Intelligence features arriving later this year, to help users remember key moments from their conversations and stay alert to important sounds, built with privacy, security, and accessibility innovations at the core.3 With watchOS 27, Apple Intelligence powers Siri AI on Apple Watch, bringing personal context understanding and broad world knowledge to the wrist.
These features add to the many ways Apple Watch Ultra already supports users with advanced workout tracking across activities, sleep tracking, powerful health features like heart health notifications and the ECG app,4 and game-changing safety capabilities like satellite communications.5 Apple Watch Ultra 4 is the most comprehensive wearable across health, fitness, and safety.
“The new Health Sensing System and S11 chip take Apple Watch Ultra 4 — our most rugged and capable Apple Watch — to the next level, delivering longer battery life, faster charging, and the most accurate heart rate sensing in a wearable,” said Kaiann Drance, Apple’s vice president of Worldwide Apple Watch Product Marketing. “With powerful health and fitness insights including readiness, new intelligent features, and its large, bright display, Apple Watch Ultra 4 is designed to support you wherever you go, from your workouts, to adventures, to everything you tackle in a day.”
The Most Accurate Heart Rate Sensing in a Wearable
Apple Watch Ultra 4 is re-architected to provide continuous high-fidelity health monitoring using the Health Sensing System, featuring new optical and electrical heart sensors. Using this system and the S11 chip, Apple Watch Ultra 4 offers the most accurate heart rate sensing in a wearable. A scientifically rigorous study on a diverse population of over 1,000 participants compared the new heart rate sensing accuracy on Apple Watch against leading wearables, with Apple Watch showing the highest accuracy across devices.
With larger, power-efficient green LEDs on the optical heart sensor, Apple Watch Ultra 4 now measures heart rate every five seconds, all day long. This continuous passive measurement delivers deeper insight into a user’s fitness and physiological state while making Exercise and Move Activity rings even more accurate. Users can view their real-time heart rate at a glance throughout their day on a new heart rate watch face complication.
Pricing and Availability
- Customers in Australia, Canada, France, Germany, India, Japan, the UAE, the UK, the U.S., and more than 50 other countries and regions can pre-order Apple Watch Ultra 4 today, with availability in stores beginning Friday, September 18.
- Apple Watch Ultra 4 starts at $799 (U.S.).
- New Apple Watch bands will be available to order today from apple.com/store and in the Apple Store app, with availability in stores beginning Friday, September 18.
- watchOS 27 will be available for Apple Watch Series 9 or later, Apple Watch SE 3, and Apple Watch Ultra 2 or later on Monday, September 14, and requires iPhone 11 or later or iPhone SE (2nd generation or later) with iOS 27. Not all features are available on all devices or in all regions. For more information about availability, visit apple.com.
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