Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker - Space Silver (Size 6)

OverviewThe ultrahuman ring air is an advanced wearable device designed for comprehensive health tracking. It monitors sleep stages, heart rate variability (hrv), heart rate, and skin temperature. The ring is made from fighter jet grade titanium, ensuring durability and water resistance up to 100 meters. It features a 6-day battery life and wireless charging. The ring provides insights into sleep, movement, and recovery, helping users optimize their daily routines and overall well-being. It also includes a stimulant window recommender and circadian phase alignment for improved cognitive function and energy levels.