Introducing the Ultrahuman Ring AIR, the ultra-comfortable fitness wearable. With its thin design and smooth inner shell, the Ring AIR offers comfort day and night. It excels in sleep tracking, providing a comfortable and non intrusive experience. Weighing just 2.4 grams, it is the lightest smart ring on the market. This sleek device combines minimalism with precise performance, allowing users to effortlessly monitor sleep, movement, heart rate, heart rate variability, and skin temperature.