Sigma's iD RUN heart rate monitor is the perfect tool for athletes of all levels, from enthusiastic amateurs to experienced marathon runners. Thanks to its silicone wristband, it is exceptionally comfortable to wear. What's more, equipped with GPS, the iD RUN accurately measures speed and distance covered, enabling easy data transfer to the Sigma Link application or Data Center for optimal analysis of performance and progress. Its activity tracker function boosts user motivation, while its backlit display ensures optimum data legibility even in the dark. For convenient heart rate measurement, Sigma HR features a wrist sensor, obviating the need for additional devices. GPS tracking for precise measurement of speed and distance / Display of distances covered / Monthly training statistics / Personal records / Key lock / Battery level indicator / Rechargeable battery / 8-language interface / Three sports profiles / Customizable training views / Tachometer function, distance per lap and time per lap / Average and maximum speed per lap / Calorie counter / Alarm, time/date / Stopwatch with tenths of a second display / Current, average and maximum step frequency / Step length / Heart rate, average and maximum step length , average, and maximum step frequency / Current, average, and maximum step length / Post-training summary / Personalized daily goal / Intermediate goals (Bronze, Silver, Gold) / Heart rate measurement / Average and maximum heart rate / Intensity zones and target zone with indicator / Zone alarm / Percentage of time spent in target zone / Calculation of maximum heart rate / Sigma's iD RUN heart rate monitor is the ideal tool for athletes wishing to track their performance accurately and comfortably. Its seamless integration with online services for performance monitoring accentuates its usefulness for daily training.