Ultrahuman Ring AIR - Advanced Sleep-Tracking Wearable, HRV & Temperature Monitoring,Track Workout, Movement & Recovery, Water Resistant, 6 Days Battery Life with Lifetime Free Subscription - Matte Black (Size 7)

OverviewThe ultrahuman ring air is an advanced wearable designed for comprehensive health tracking. It monitors sleep stages, heart rate variability (hrv), heart rate, and skin temperature to provide insights into your overall well-being. The ring is made from fighter jet grade titanium, ensuring durability and comfort. It features a 6-day battery life, wireless charging, and water resistance up to 100 meters. The ring also includes a dedicated workout mode, movement index, recovery score, and a stimulant window recommender for optimizing caffeine consumption. Available in multiple sizes, it offers a perfect fit with the ultrahuman ring air sizing kit.