The Lechal Smart Insoles do more than keep your feet comfortable, it also accurately tracks your activity, every step you took, calories burnt, distance traveled and more. You can set a destination in the app then use its built-in GPS technology to track and navigate the best route. Lechal can guide you which direction to go at upcoming intersections. The Insoles will reduce the time spent staring at your phone for directions and let you focus on your surrounding. Best of all, if you want to use its trackers with your top of the line insoles, it comes with clips that can be attached to the outside of your favorite shoes. You can purchase a pair of Lechal Smart Insoles including the charger and the clips for $100.