Apple's latest watch models enhance training efficiency with GNSS GPS tracking and a pacer function. Runners can customize workouts to follow specific pacing strategies, ensuring adherence to planned paces.

The watch's heart rate sensing and training readiness features help prevent overexertion. It compares health stats to suggest whether to push harder or relax, aiding in injury prevention. However, personal judgment remains crucial. Read more culture coverage.

The pacer feature provides real-time feedback on relative pace during races, helping runners adjust on hills or flat sections. This feature is particularly useful in large races like the TCS New York City Marathon. Related: NYC Marathon: Elite Runners Share Strategies Ahead of Race.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.