The Ultrahuman Ring Air is an ultra-lightweight and comfortable fitness wearable specifically designed to monitor your health and fitness. Weighing just 2.4 grammes, it is the lightest smart ring on the market and features a notch-free, ultra-thin design for maximum comfort. The Ring Air enables precise monitoring of sleep, movement, heart rate, heart rate variability and skin temperature. Equipped with a 6-axis motion sensor and a PPG sensor, it captures the subtleties of your body movements and vital signs with high accuracy. The hypoallergenic, smooth inner shell provides additional comfort, while the robust titanium housing guarantees durability.