The Polar RS100 heart rate monitor provides a smarter training experience. Whether your goal is to improve your fitness or run faster, Polar's easy-to-use heart rate-based Smart Coaching features will guide you to workout efficiently and motivate you to reach your goals. The RS100 is ideal for beginners who want basic heart rate and timing features. It will guide you to train at the right intensity with OwnZone, Polar's unique Smart Coaching feature. In addition, it lets you know exactly how many...