NEW IN BOX / NEVER USED / OPEN TO OFFERS / NO TRADES • The ultimate fusion in ring durability: The outer shell is made from Space-Grade Titanium reinforced with Tungsten Carbide Carbon coating, making it resistant to everyday wear and tear. The inner of the ring is coated with medical-grade hypoallergenic epoxy resin, making it comfortable to wear at all times. • No subscription costs: No mandatory subscriptions needed to use the Ultrahuman Ring AIR and it's App with lifetime access to all data. • Wake up to your sleep insights: The Sleep Index, intelligently designed to be your sole metric for sleep health, assesses your total sleep duration, resting heart rate, and restfulness, creating a comprehensive picture of your sleep quality. • Temperature tracking: Skin temperature is vital for measuring your body's physiological states and responses to