Ultrahuman Ring AIR Raw Titanium - Size 8

Powerful light. Incredibly slim.

Weighs 2.4 g. 11 times lighter than a typical smartwatch.

Only 2.4 mm thick. Discreet design for everyday use.

The most comfortable wearable technology in the world.

Glides with you through the day and feels lighter than air. It's there when you need it and invisible when you don't.

A form factor so discreet that it's easy to forget you're wearing it, but hard to ignore what it can do.

Wake up to your sleep data. The sleep index, intelligently designed to be your sole measure of sleep health, evaluates your total sleep duration, resting heart rate, and recovery, creating a comprehensive picture of your sleep quality.

Temperature monitoring made easy. Skin temperature is crucial for measuring your body's physiological states and responses to various factors, including exercise, stress, and illness.

Listen to your inner clock. The phase response curve describes the complex interplay between a stimulus, such as light, food, or movement, and a shift in your circadian rhythm.

Towards a more active you. The movement index is designed to keep you moving to promote optimal glucose metabolism and increase your energy expenditure outside of sports.

Maximize recovery with key HRV insights. The correlation between HRV and recovery is essential for understanding the body's recovery capabilities and its readiness for a new day.

The only nudges you need. Personalized nudges for a healthier you. Receive tailored insights and alerts that help you make better real-time decisions.