Ultrahuman Ring Air Size 14 Matte Grey

The Ring Air Size 14 Matte Grey tracks heart rate, sleep, steps, and skin temperature for all day wellness monitoring.

Sized for those who need a size 14 fit, this Ultrahuman smart ring suits users looking for a lightweight, unobtrusive alternative to a traditional fitness tracker. Its matte grey finish and titanium construction make it comfortable for continuous wear, including overnight sleep tracking.

The ring pairs with iPhones running iOS 15 or later and Android devices running Android 6 or later via Bluetooth v5.0. Its battery lasts 4 to 6 days on a full charge, reducing the need for frequent charging. Water resistance up to 100 metres for 12 hours allows for use during swimming or showering, while advanced sensors track circadian rhythm, temperature-based ovulation prediction, caffeine window detection, AFib detection, and more.

Model 170141 in grey comes with a 1 year manufacturer's warranty.