Overview
- Apple released a roughly 30‑second YouTube ad titled "Health with iPhone + Apple Watch" that promotes the two devices as a health pair.
- The YouTube description says the pair delivers science-based insights on heart rate, cycle tracking, cardio fitness, and sleep quality.
- In the ad, a Watch cardio fitness alert cuts through stray advice and sends the protagonist to the Health app, which shows her above‑average cardio fitness.
- Cardio Fitness on Apple Watch estimates VO2 max, which is the most oxygen your body can use during exercise.
- Apple introduced Cardio Fitness in 2020, and the Health app ranks levels from high to low, tracks trends, and can notify users with tips when levels drop.