Experience the ultimate in outdoor adventure with the Polar Grit X series, designed for endurance and outdoor athletes. These rugged multisport watches offer military-grade durability, advanced GPS, and integrated altimeter to navigate the toughest terrains. With features like Hill Splitter, FuelWise smart fueling assistant, and comprehensive heart rate monitoring, the Grit X series provides the tools to conquer any challenge. Stay connected with smart notifications and enjoy long battery life for extended adventures. Discover the latest Polar Grit X models at Highly Tuned Athletes and elevate your outdoor performance with cutting-edge technology.