For analytical running. You demand more information & analytical feedback. You want to shave off minutes & seconds from your personal best with proper training planning. RS400sd is your system for planning monitoring & analysing your running. With daily information on your aerobic fitness & running economy RS400sd meets your needs as an active runner with racing aspirations. Comes with the same running features as RS400 plus detailed speed/pace & distance tracking. Key
Features: Running Index – Based on heart rate & speed data measurement during the run. Speed/pace & distance – Motivate your training sessions with accurate distance speed (min/km or min/mile) & pace (km/h or miles/h). Autolapping – Set your running computer to automatically take laps at preset distancies. Polar Sport Zones – Helps you to train at the right intensity. Event Countdown Timer – Set your goal & stay motivated. Interval Trainer (HR pace distance) guided workouts – Create your personal multizone workouts with heart rate / speed / distance & timing guidance Polar Pro Trainer 5TM included