Push through your toughest training with the Google Fitbit Air fitness tracker and Google Fitbit Air Active band bundle. Monitor the metrics that matter most. Choose from over 40 exercise modes. Plus, this sweatproof, wetproof silicone band can keep 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 - Obsidian/Fog