ULTRAHUMAN Ultrahuman Ring AIR Smart Ring - Sleep & HRV Tracking

The Ultrahuman Ring AIR is a wearable smart ring that tracks your sleep, heart rate variability, stress levels, activity, and recovery metrics without requiring a subscription. This compact device measures comprehensive health data including sleep quality, stress patterns, heart health, movement, workouts, and overall recovery to help you optimise your wellness routine. The Ring AIR comes in 10 sizes (5-14) for a secure, comfortable fit on any finger. Before purchasing, order the Ultrahuman Sizing Kit separately to determine your correct ring size, as Ultrahuman sizing differs from standard ring sizes. This approach ensures you receive the perfect fit and minimises returns or exchanges, allowing you to start tracking your health metrics immediately upon arrival.