Polar Grit X is an outdoor multisport watch that combines robust but lightweight design with military standard durability and ultra-long battery life. Learn to refuel with the FuelWise™ fueling assistant, stay on the right path with real time route guidance, and get detailed uphill and downhill stats with Hill Splitter™. Polar Grit X monitors your training load and nightly recovery and offers you Polar Grit X makes sure you’re well prepared when you take off and keeps you going all the way to the finish line on your longest, most epic adventures. Polar Grit X gives you hours of continuous training without any compromises on weight, durability or design. We accept returns for change of mind within 30 days of purchase. Return postage costs will be met by you but can be reclaimed via pay.