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. The shape is so discreet that it's easy to forget you're wearing it, but hard to ignore its capabilities. Wake up with your sleep data. Smartly designed as your single measure of sleep health, the Sleep Index evaluates your total sleep duration, resting heart rate and restfulness, creating a comprehensive picture of your sleep quality. Temperature tracking made easy. Skin temperature is critical for measuring your body's physiological states and responses to various factors, including exercise, stress and illness. Listen to your internal clock. The phase response curve (PRC) describes the complex interplay between a stimulus, such as light, food or exercise, and a shift in your circadian rhythm. To 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 exercise. Maximise recovery with key HRV insights. The correlation between HRV and recovery is critical to understanding the body's recovery capabilities and readiness for a new day. The only nudges you need. Personalised nudges for a healthier you. Get customised insights and alerts that help you make better decisions in real time.