Founded by James Park and Eric Friedman, Fitbit is a consumer electronics company known for its activity trackers. Fitbits are wireless-enabled wearable devices that measure data, such as the number of steps walked, quality of sleep and other personal metrics.
Fitbit’s first device was the Fitbit Tracker, which uses a three-dimensional accelerometer to sense user movement. Other devices include the Fitbit Ultra, Fitbit One, Fitbit Zip, Fixbit Flex, and Fitbit Force.
In October 2011, Fitbit launched an app for the iPhone, followed by one for Android. The app allows users to log their food, activities, water intake and weight, as well as track their fitness goals; in July 2013, an official Windows app was released. In early 2014, Fitbit issued a voluntary recall of the Fitbit Force in response to customer complaints of skin irritation.