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