Take your fitness routine wherever you go with the Wii U Fit Meter! The Fit Meter is a convenient portable accessory for use with Wii Fit U, designed to measure the number of steps you take and the amount of calories you burn in a day. For use only with Wii Fit U and the Wii U system. Standalone Fit Meter is Black/Silver. (1) Coin Lithium CR2032 Battery included.