The Polar Pacer Pro features real-time route guidance and displays paths on a colored screen. It connects to the music app on your smartphone, allowing for music control. The FuelWise Smarter Energy Assistant helps you maintain a balanced energy level during your workout. With a long battery life and various power-saving options, it offers up to 35 hours of continuous training time. Proven training features support the diverse capabilities of Polar Flow. Integrated GPS, optical heart rate monitoring, Sleep Plus Stages, fitness tests, and running programs are also included. The Polar Precision Prime sensor fusion technology ensures even more accurate measurements. Includes Polar H10 heart rate sensor.