Ultrahuman Ring Air Size 09 Bionic Gold

The Ring Air Size 09 Bionic Gold tracks heart rate, sleep, steps, and skin temperature for everyday health monitoring. This Ultrahuman fitness tracker fits users seeking a discreet, screen-free wearable that works with iPhones running iOS 15 or later and Android devices running Android 6 or later. Its lightweight design, weighing between 2.4 and 3.6g, makes it comfortable for continuous wear. The ring uses fighter jet grade titanium reinforced with tungsten carbide carbon coating for durability, while the inner surface is coated with medical-grade hypoallergenic epoxy resin. It connects via Bluetooth v5.0 and is water resistant up to 100 meters for up to 12 hours, making it suitable for daily routines and active lifestyles. The battery lasts 4 to 6 days on a full charge. Model 170116 in gold comes with a 1 year manufacturer's warranty.