Enhance your training and recovery with the Amazfit Helio Strap activity tracker. Powered by advanced BioTracker technology, it offers 24/7 health monitoring with real-time insights into heart rate variability, sleep, blood oxygen levels, and more. The Zepp app provides 27 built-in sports modes and lets you easily sync your training data to third-party platforms like Strava. | Amazfit Helio Strap Activity Tracker - Black