Fitbit Air Wellness Tracker Obsidian

Seamless micro-adjustable fit. Advanced sensors for more accurate precise tracking. Water resistant to 50 M and sweatproof. Use with Google Health Premium Membership for tracking coaching and more. 24/7 Heart rate tracking steps active zone minutes and calories burned. Get metrics for SpO2 breathing rate skin temperature and more. Memory saves 7 days of detailed motion data. Up to 7 days of battery life. One size band fits wrists 130-210mm around. Compatible with Android 11.0 or higher and Apple iOS 16.4 or higher.