Apple released a series of updates yesterday published, including iOS 14.3 and watchOS 7.2. Notifications about cardio fitness have also been integrated.
Apple announced last night in a press release that users of watchOS 7.2 and iOS 14.3 will receive a notification when their cardio fitness level is low. Apple's smartwatch had already measured regular and high VO2 max values, which is an important indicator of the heart's performance. But under watchOS 7.2, the Apple Watch can now also detect and track lower values. is called it in the press release:
Apple Watch with watchOS 7 now uses multiple sensors, including the optical heart sensor, GPS, and accelerometer, to estimate even low levels. This is significant because directly measuring VO2 max typically requires a rigorous clinical test with specialized equipment that is not readily accessible to most people. With watchOS 7, Apple Watch can now also take measurements of a user's cardio fitness as they walk or run throughout the day, whether or not a workout is recorded. With this new feature, Apple Watch is better able to measure VO2 max for users with low cardio fitness who may not be doing high-intensity workouts.
Cardiofitness requires iOS 14.3 and watchOS 7.2
Jeff Williams, Apple’s Chief Operating Officer, commented:
Cardio fitness is increasingly recognized as a powerful predictor of overall health, and with today's update to watchOS 7, we're making it accessible to even more people. With its advanced sensors, Apple Watch now brings clinical assessment of low cardio fitness levels directly to the wearer's wrist, giving people more insight into how to improve their long-term health through daily activity.

To get the new features, watchOS 7.2 and iOS 14.3 are required. The feature can be accessed at any time in the Health app. (Photo by raditya / Bigstockphoto)