Do what you love and feel your best with Inspire 3 that helps you stay on top of your stress, fitness and sleep—all you have to do is wear it. Track Health Metrics like skin temperature & blood oxygen, plus get daily scores that show how hard you can exercise today or how well you’re managing stress. Fitbit is part of the Google family.Requires use of Fitbit app with compatible iPhone or Android devices. A Google account will be required.