Apple UPDATE December 14, 2020 Apple Watch can monitor and classify cardio fitness, a strong predictor of overall health Apple Watch users can now view how their cardio fitness level is classified based on their age group and sex in the Health app on iPhone, and receive a notification if it falls within the low range.
With iOS 14.3 and watchOS 7.2, Apple Watch users can view their cardio fitness level in the Health app on iPhone, and receive a notification on Apple Watch if it falls within the low range. Breakthrough technology released in watchOS 7 allows Apple Watch to easily measure low cardio fitness, and today cardio fitness notifications empower users to be more active for dramatic long-term health benefits.