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The Tech Diff > Blog > Wearables > Apple Watch Ultra 4: A Game-Changer for Endurance Athletes
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Apple Watch Ultra 4: A Game-Changer for Endurance Athletes

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Last updated: September 24, 2026 7:29 pm
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Apple Unveils the Apple Watch Ultra 4

In a much-anticipated launch event, Apple introduced several new products including the iPhone Duo, AirPods 5, iPhone 18 Pro and 18 Pro Max, and the Apple Watch Series 12. Among these innovations is the Apple Watch Ultra 4. This latest model marks a continuation rather than a revolution, with no price increase, no major design changes, and no alterations to color options.

Contents
Apple Unveils the Apple Watch Ultra 4Performance EnhancementsBattery Life and EfficiencyCharging CapabilitiesHealth and Wellness FeaturesAI Integration and Future FeaturesFinal Thoughts

Performance Enhancements

Much like the Series 12, the Apple Watch Ultra 4 features a redesigned rear that enhances its health-sensing capabilities. At its core, the new S11 chip integrates a Secure Enclave and an always-on processor, providing a solid foundation for performance. Additionally, Apple is rolling out a new Readiness Score aimed at competing with established players like Oura and Whoop.

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Battery Life and Efficiency

One of the standout features of the Ultra 4 is its improved battery life. The device boasts a 5% larger battery than its predecessor, the Ultra 3. Apple claims this translates to up to 50 hours of usage in typical conditions, an impressive 84 hours in Low Power Mode, and up to 45 hours in Max Extended Workout Mode. Such capabilities make the Ultra 4 a compelling option for endurance enthusiasts.

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(Image credit: Future/Jacob Krol)

Charging Capabilities

The Apple Watch Ultra 4 introduces a new charger that may not look different, but is designed to charge the device faster. During testing, Apple’s claim of achieving up to 18 hours of battery life from just a 15-minute charge has proven largely true, although further tests will be required to confirm the extent of this efficiency.

Health and Wellness Features

The redesigned health-sensing system is complemented by features such as heart rate variability (HRV) tracking and frequent heart rate monitoring. These enhancements should significantly benefit fitness enthusiasts, especially with the added dual-band GPS and blood oxygen tracking capabilities. Furthermore, hypertension notifications provide crucial health insights for users.

AI Integration and Future Features

Apple is also integrating AI capabilities, including Sound Recognition and a quicker Shazam. While these features are currently available, Live Rewind and Siri Recap are expected to launch later this year. The Ultra 4’s larger battery could give it an edge over the Series 12 when using these functionalities, making it a device to watch.

Final Thoughts

While the Apple Watch Ultra 4 remains an evolution rather than a complete overhaul, the increased battery life and health tracking capabilities are welcome upgrades. The integration of extensive health data and the overall efficiency improvements work together to enhance the user experience significantly.

The Apple Watch Ultra 4 is currently available for preorder at the same price point of $799 / £749 / AU$1,349, with an official launch set for September 18, 2026.

Apple Watch Ultra 4 Review

(Image credit: Future/Jacob Krol)

For a more detailed exploration of the Apple Watch Ultra 4’s features, you can read the original article Here.

Image Credit: www.techradar.com

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