Fitbit, Inc. is an American consumer electronics and fitness company headquartered in San Francisco, California. Its products are activity trackers, smartwatches, wireless-enabled wearable technology devices that measure data such as the number of steps walked, heart rate, quality of sleep, steps climbed, and other personal metrics involved in fitness. Before October 2007, the company was previously named Healthy Metrics Research, Inc. While these devices appear to increase physical activities, there is little evidence that they improve health outcomes. In 2019, Google announced its intention to buy Fitbit for $2.1 billion. The transaction was completed in January 2021 following regulatory approvals in the United States and Europe.