iOS 26.4 adds more Sleep and Vitals data to Apple Health

9to5Mac • February 17, 2026 • technology

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Apple released iOS 26.4 beta 1, introducing updates to the Health app, including enhancements to the Vitals metric and new sleep tracking features.
The Blood Oxygen feature, previously removed from the Apple Watch due to a patent dispute, has been reintegrated into the Vitals overview on the iPhone Health app, allowing users to see it alongside other metrics like heart rate and respiratory rate.
A new Sleep Highlight feature provides users with a two-week average bedtime breakdown, enabling comparison with the previous night's bedtime.
The update is currently available for developers and public beta testers, continuing Apple's focus on health and wellness tracking improvements.