Fitbit Inc. is a company headquartered in San Francisco, California, United States. Founded and managed by James Park and Eric Friedman, the company is known for its product of the same name, the Fitbit Tracker, a wireless-enabled wearable device that measures data such as the number of steps walked, quality of sleep, and other personal metrics. The Fitbit Tracker uses a three-dimensional accelerometer, similar to that in the Wii Remote, to sense user movement. The Tracker measures steps taken, distance walked, calories burned, floors climbed, and activity duration and intensity. It uses an OLED display to display this and other information such as the battery level. It also measures sleep quality: how long it takes the wearer to fall asleep, how often they wake up over the course of the night, and how long they are actually asleep. A wireless base station is included to receive data from the Tracker and also charge its battery.
Contributions by Steven Walling, Smfjaagesund, and Notyourbroom.