Apple Unveils Apple Watch Ultra 4 Featuring S11 Chip, Enhanced Sensors, and Longer Battery Life

Apple Watch Ultra 4: Advanced Features and Upgrades

According to НВ — Техно: Apple has introduced the latest Apple Watch Ultra 4, powered by the new S11 processor and equipped with upgraded health sensors and a larger battery. Pre-orders started on September 9, 2026, with official sales launching on September 18. The watch will be available in two finishes: black and natural titanium.

The improved battery delivers up to 2 days of use on a single charge. During workout sessions with active GPS and heart rate monitoring, the device can operate for up to 18 hours. In its extended battery mode, the watch lasts as long as 45 hours. The revamped sensor system features a larger electrode surface, enhancing the accuracy of ECG readings. Photodiodes are now arranged in a ring to capture light more effectively. Additionally, the green LEDs used for pulse measurement have been increased in size and optimized for energy efficiency, allowing more frequent data collection, displayed within the updated Heart Rate app. Apple claims this model offers the most precise heart rate tracking available among wearable devices, validated through studies involving hundreds of participants using chest-strap ECG monitors as a benchmark.

Innovative Features and Technologies

New functionalities include the Readiness feature, which assesses daily activity, physiological metrics, and sleep quality to provide a personalized wellness score. The Health Age metric integrates watch data with blood biomarker analysis, comparing the wearer’s biological condition to their chronological age. The energy-efficient S11 chip supports new audio intelligence capabilities that recognize sounds such as:

• alarms
• doorbells
• baby crying

Another addition is Live Rewind, which allows users to review spoken content from the previous 15 seconds. Siri Recap generates summaries and key points from conversations. Importantly, these audio features do not record or store any audio data.

The starting price for the Apple Watch Ultra 4 is $799.

The launch of the Apple Watch Ultra 4 highlights Apple’s ongoing commitment to integrating cutting-edge health and wellness technologies into wearable devices.

With increased health monitoring capabilities like Readiness and Health Age, this smartwatch emphasizes the expanding role of wearables in managing physical activity and overall well-being. It aims to be a vital tool for users seeking to enhance their health and maintain an active lifestyle.

As Apple continues to innovate in the wearable technology space, the introduction of the Apple Watch Ultra 4 raises questions about its compatibility with other upcoming devices, such as the rumored stylus for the foldable iPhone. This potential accessory could enhance user experience, especially for those who value precision and functionality. To learn more about this intriguing development, check out our article on Apple's plans for a stylus with the foldable iPhone.