Nintendo Wii Fit U Meter (Black) - WiiU - Wireless Motion sensor - Nintendo Wii U

The Fit Meter does a lot more than count your steps. It also has an acceleration sensor and an atmospheric pressure sensor. This means the Fit Meter can more accurately calculate how many calories you burn, based on what you're doing. Running up stairs, for example, will torch more calories than taking the elevator - even though the distance is the same.