Meet LEO: a wearable device designed to help you get more out of your workouts. LEO monitors your performance to give you an idea how well you are doing. It uses the data collected to offer you recommendations. LEO adapts to your physiology. It can track your heart rate, calories, speed, distance, time, acceleration, and more. The device provides you with real-time feedback and takes into account your balance, muscle intensity, technique, hydration, and lactic acid build-up.