Brand Name: Ultrahuman Product: Ultrahuman Ring AIR Product Description: Smart Ring Wearable Month & year of packaging: May 2025 Size 10 Matt Grey Material: Titanium, Resin Brand New in Box not Used The Ultrahuman Ring AIR is a smart wearable designed to help you optimize your health, sleep, recovery, and fitness performance. Here are the key benefits: • Tracks sleep quality (deep, REM, light sleep stages) • Monitors heart rate and heart rate variability (HRV) for recovery insights • Measures movement and activity levels to guide training and rest • Estimates metabolic activity and stress levels • Lightweight and comfortable, made from titanium and resin • Long battery life and stylish design for all-day wear