For cross-sport training

Speed and distance is nothing without heart rate monitoring. Only by combining these three with the RS300X, you can truly make sense of your training. G1 GPS sensor provides speed and distance in various outdoor sports, so you know it's worth all the effort.

• Measures your heart rate combined speed and distance
• Helps you to train at the right intensity with personal training zones
• Displays how many calories you’ve burned
• Tracks your latest 16 training sessions and your last 16 weeks of training
• Transfer training data to polarpersonaltrainer.com with optional Polar FlowLink™