The Ultrahuman Ring Air is a lightweight smart ring designed for comprehensive health and fitness monitoring. This unisex device features advanced sensors, including infrared photoplethysmography for heart rate measurement, medically certified non-contact skin temperature measurement, and 6-axis motion tracking. Made from aircraft-grade titanium with a tungsten carbide carbon coating, it offers exceptional durability while weighing only 2.4 grams for comfortable all-day wear. The ring provides up to 6 days of battery life from its 24 mAh LiPo battery and takes about 180 minutes for a full charge. Waterproof up to 100 meters, it is suitable for swimming and water activities. Available in 10 sizes from 5 to 14, this model comes in a raw titanium finish. The package includes the smart ring, charging station, USB-C cable, and user manual. No subscription fees are required for standard tracking features that monitor heart rate variability, oxygen saturation, sleep patterns, and physical activity metrics. The compact design and lightweight construction make it significantly more comfortable than bulkier wearable alternatives while providing comprehensive health monitoring capabilities. The precise sensors enable continuous data collection without compromising wearing comfort. The medically certified temperature measurement offers reliable values for long-term health monitoring. The robust titanium construction ensures durability for daily use. The intuitive operation and long battery life make the ring a practical solution for continuous health monitoring. The waterproof design allows unrestricted use during various activities. The extensive health data collection supports a holistic understanding of personal well-being.