Apple Watch Ultra 4 offers incremental hardware and software improvements over the Ultra 3

The Apple Watch Ultra 4 introduces several hardware and software refinements compared to the Apple Watch Ultra 3, though it does not represent a radical departure from its predecessor. Key upgrades include the S11 chip, which features a new neural accelerator, and a doubling of RAM from 2GB to 4GB. Battery life has been extended to 50 hours, up from 42 hours on the Ultra 3. The device also incorporates an upgraded high-frequency optical and electrical sensor system, enabling more frequent heart rate interval checks every five seconds. Software enhancements include a dedicated readiness app, recovery heart rate variability (HRV) tracking, and new audio intelligence features such as sound recognition, live rewind, and Siri recap. Despite these technical improvements, the starting price remains $799. The video also highlights the Apple Watch Series 12, which features a slightly faster S11 chip, 4GB of RAM, and improved fast charging capabilities compared to the Series 11. The reviewer emphasizes that for users of the Ultra 3 or Series 11, the upgrade may not be necessary, but it remains a viable option for those using older models.

The Apple Watch Ultra 4 features the S11 chip with a new neural accelerator and 4GB of RAM. Battery life on the Apple Watch Ultra 4 has increased to 50 hours from 42 hours on the Ultra 3.

The Ultra 4 includes an upgraded high-frequency optical and electrical sensor system for more frequent heart rate monitoring. New software features on the Ultra 4 include a dedicated readiness app, recovery HRV tracking, and audio intelligence capabilities.

The Apple Watch Series 12 offers a faster S11 chip, 4GB of RAM, and improved fast charging compared to the Series 11. The reviewer suggests that upgrading from the Ultra 3 or Series 11 is not necessary due to the incremental nature of the improvements.