Ultrahuman Ring Air Size 10 Aster Black

The Ring Air Size 10 Aster Black tracks heart rate, sleep, steps, and skin temperature for everyday health monitoring.

This smart ring suits users who want discreet, screen-free tracking throughout the day and night. Its size 10 fit is designed for comfort during sleep and daily wear, making it suitable for those who prefer not to wear a bulky fitness watch.

Made from fighter jet grade titanium with a hypoallergenic epoxy resin inner coating, the ring is water resistant up to 100 meters for up to 12 hours. It connects to iPhones running iOS 15 or later and Android devices running Android 6 or later via Bluetooth v5.0. The battery lasts 4 to 6 days on a full charge, supporting routines that require minimal charging interruptions.

Model 170107 in black comes with a 1 year manufacturer's warranty.