Ultrahuman Ring Air Size 05 Bionic Gold

The Ring Air Size 05 Air Gold tracks heart rate, sleep, steps, and skin temperature for daily health monitoring.Sized for a snug fit on fingers that measure US size 5, this Ultrahuman fitness tracker is designed for all-day wear. Its lightweight build and hypoallergenic epoxy resin inner coating make it comfortable for extended use, while the titanium shell with tungsten carbide carbon coating adds durability.Bluetooth v5.0 connectivity pairs the ring with iPhones running iOS 15 or later and Android devices running Android 6 or later. The battery lasts 4 to 6 days on a full charge, supporting multi-day routines without frequent recharging. Water resistance up to 100 metres for up to 12 hours means it can be worn during swimming or showering.Model 170112 in gold comes with a 1 year manufacturer's warranty.