Lance Miller, product manager for Fleet Feet, got K.C.'s attention this week on Great Day Green Country with some fun electronic gadgets designed to help runners/walkers improve their fitness. The segment mainly focused on GPS devices that help track speed and distance, but Lance also showcased a heart rate monitor designed to be used with an iPhone 4s. These watches, starting at $100, make great gifts for the active people on your holiday list. Check out the full video below, or visit one of our stores for more information about these devices.