We research all brands listed and may earn a fee from our partners. Research and financial considerations may influence how brands are displayed. Not all brands are included. Learn more.

Google's new wearable is something most people won't get the chance to wear. Google X, the part of the company that innovates new technology, says the wearable will be used primarily as a health research tool. This device is to become "a medical device that's prescribed to patients or used for clinical trials," says Google's Andy Conrad.