Ring AIR - Advanced sleep-tracking wearable, HRV & Temperature Monitoring,Track workout, movement & recovery, Water resistant, 6 Days Battery Life with Lifetime Free Subscription (Size 7) - Raw Titanium

Introducing the Ultrahuman Ring AIR, the ultra-comfortable fitness wearable. With its notch-less, ultra-thin design and smooth inner shell, the Ring AIR offers unparalleled comfort day and night. It excels in sleep tracking, providing a comfortable and unobtrusive 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.