Ultrahuman Ring Air Size 08 Matte Grey

The Ring Air Size 08 Matte Grey tracks heart rate, sleep, steps, and skin temperature for daily health monitoring.Sized for a snug fit, this Ultrahuman fitness tracker is designed to stay secure on your finger throughout sleep and daily routines. Its lightweight build, ranging from 2.4g to 3.6g, makes it comfortable for continuous wear, while the matte grey finish suits a range of personal styles.The ring is crafted from fighter jet grade titanium reinforced with a tungsten carbide carbon coating, and the inner surface uses medical-grade hypoallergenic epoxy resin. It is water resistant up to 100 metres for up to 12 hours, so you can keep it on during swimming or showering. The battery lasts 4 to 6 days on a full charge, and Bluetooth v5.0 connectivity syncs your data with iPhones running iOS 15 or later and Android devices running Android 6 or later.Model 170135 in grey comes with a 1 year manufacturer's warranty.