Ultrahuman Ring Air Size 09 Matte Grey

The Ring Air Size 09 Matte Grey tracks daily activity, heart rate, sleep, and skin temperature for users seeking a discreet fitness companion.

Sized for a standard US ring size 9, this Ultrahuman fitness tracker fits comfortably on your finger and is crafted from fighter jet grade titanium with a hypoallergenic epoxy resin inner coating. It connects to iPhones running iOS 15 or later and Android devices running Android 6 or later via Bluetooth v5.0, syncing health insights through the Ultrahuman app.

The ring is water resistant up to 100 meters for up to 12 hours, making it suitable for swimming and showering. Its battery lasts 4 to 6 days on a full charge, reducing the need for frequent recharging.

Model 170136 in grey comes with a 1 year manufacturer's warranty.