Apple is expanding the range of cardiorespiratory fitness that can be measured on the Apple Watch. Starting today, the Health app will classify users as having “high,” “above average,” “below average,” or “low” cardio fitness. Low levels will trigger a notification.
The Watch tracks fitness through a metric called VO2 max, which is the amount of oxygen your body consumes during movement or exercise. The Apple Watch was already tracking average and high VO2 max for users during exercise. This update expands the range it measures and allows users to see their levels when they’re walking around, not just when they’re working out.
Apple says it tracks...
