A solid start. The RS100 is a simple, no-fuss solution that|s perfect for entry level runners who want to get on the right track to fitness. It comes with a variety of uncomplicated yet highly effective features. Measures your heart rate combined with flexible timing features. Automatically sets your heart rate aerobic zones depending on how hard you want to train. Shows you how many calories and the percentage of fat you|ve burned. Calculate your time spent on each exercise, how well you|ve kept to certain sport zones and how many calories you|ve burned. Records up to 99 lap/splits for every training session so you can work to improve on your best time and monitor your heart rate over time.

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