Strong willpower can make a huge difference in your life. It sets winners apart from losers. When it comes to losing weight, staying fit, and taking your body to the next level, you are going to need strong willpower. Under Armour Armour39 is a cool gizmo that promises to measure it. It measures the effort you put forth during your activities. It also tracks heart rate, calories, and activity duration.
Under Armour Armour39 has a sensor you strap around your chest to measure your activities. How accurate is it? We have to wait till March 2013 to find out.