Push through your toughest training with the Google Fitbit Air fitness tracker and Google Fitbit Air Active band bundle. Fitbit Air helps you reach your full potential with around-the-clock tracking and personalized coaching. The sweatproof, wetproof silicone band keeps up with your most intense workouts—from swim sessions to long runs in the heat. | Google Fitbit Air Screenless Fitness Tracker with Heart Rate Monitor & Air Active Band (Small) - Obsidian