Nike Run Club Watch Start Workout Timer

Upon tapping the prominent green "START" button, the circular button rapidly scales up to fill the screen, transitioning into a bold, full-screen countdown. The numbers "3", "2", and "1" scale up and fade out in a snappy, rhythmic sequence, creating a high-energy transition. Once the countdown completes, the active workout dashboard fades into view, immediately starting the timer and displaying live metrics like distance and heart rate.