Ultrahuman Ring Air Size 10 Bionic Gold

Track your health around the clock with the Ring Air Size 10 in Bionic Gold, a sleek fitness tracker that works with both iPhone and Android devices. This lightweight ring weighs just 2.4-3.6g, featuring fighter jet grade titanium construction with a hypoallergenic inner coating for comfortable all-day wear. It connects via Bluetooth 5.0 to monitor your circadian rhythm, predict ovulation based on temperature, detect caffeine windows, and even identify AFib while you sleep. The impressive battery lasts 4-6 days on a single charge, and you can wear it worry-free during swims with water resistance up to 100 meters for 12 hours. Comes with a 1-year warranty. Model 170117.