Energy band

Nike has unveiled the Nike+ FuelBand, a wristband that aims to provide a common metric for tracking physical activities. Building on Nike+, the FuelBand tracks ‘NikeFuel’ – units that let people compare, say, a game of basketball to a dance class. People can measure up and compete with others or use the band as motivation to stay fit. You can set daily NikeFuel score goals and the FuelBand turns red, yellow, or green to tell you how you’re doing.