Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Polar H7, Fitbit Charge 2, Garmin VivoSmart HR+, ActiGraph GT9X-BT, Omron HJ-72OITC. Philips Health Watch and Withings Pulse Ox are not illustrated in the picture but are worn in the same position of the Fitbit and Garmin devices.
