When it comes to your training, it’s all about the detail. Like being able to personalize every aspect of your workout. The RS400 meets all these elements head on by helping you plan, monitor and analyze each training session.

• Synchronizes with the Polar ProTrainer 5 software for guidance, analysis and creating individual training settings
• Measures your heart rate combined with flexible training features
• Highly visible display for easy reading during training
• User configurable display for personalization of your preferences