The Ultrahuman Ring AIR in Bionic Gold is an advanced health and fitness tracking smart ring designed for continuous, passive monitoring without the bulk of a traditional smartwatch. Weighing only 2.4 to 3.6 grams depending on size, it is 11 times lighter than typical smartwatches and features a sleek 2.4mm profile for comfortable all-day wear.

The ring includes comprehensive sleep tracking with detailed sleep stage analysis, sleep score calculations, and over 10 contributing metrics to help understand sleep patterns. For fitness and activity tracking, it monitors steps, distance, calories burned, and provides VO2 max estimates. The device continuously tracks heart rate, heart rate variability (HRV), and skin temperature to generate a dynamic recovery score that updates throughout the day.

Health monitoring features include stress tracking, circadian rhythm analysis, and caffeine window detection. For women's health, the ring offers tailored menstrual cycle tracking and pregnancy insights with temperature-based ovulation prediction. The Ring AIR also features AFib detection in select regions for proactive heart health monitoring.

Built from fighter jet grade titanium reinforced with tungsten carbide carbon coating, the ring is water resistant up to 100 meters for up to 12 hours. The medical-grade hypoallergenic epoxy resin inner lining ensures comfortable extended wear. Battery life extends 4 to 6 days on a full charge, with approximately 180 minutes required for a complete recharge using the included standard charger.

The ring connects via Bluetooth Low Energy (BLE5) and is compatible with iPhones running iOS 15 or later and Android devices running Android 6 or later. No subscription fee is required for full access to all data and features, distinguishing it from competitors. Package includes the Ultrahuman Ring AIR in Size 7 and a standard ring charger with Type-C cable. Smart ring sizing differs from standard ring sizes, so a sizing kit is recommended for optimal fit.