The World's Lightest Smart Ring — Just 2.4g, Made from Space-Grade Titanium Size First Ultrahuman Ring sizes are different from standard ring sizes. Purchase sizing kit first to get the perfect ring AIR size. Ring AIR is available in 10 sizes from 5-14. 6 colours. 15+ languages. The Ring AIR is the ultimate smart ring for men and smart ring for women latest — weighing just 2.4g at 2.4mm thin with a hypoallergenic inner lining. This health ring, fitness ring, and sleep tracker tracks heart rate, HRV, skin temperature, SpO2, stress, steps, and calories 24/7. Water-resistant to 100m (IP68). A wearable smart ring and digital ring that replaces your fitness watch. Compatible with iOS (smart ring for iphone) and Android. NFC-enabled. Sleep, Recovery & Stress — Decoded This sleep monitoring device and sleep tracking ring decodes REM, Deep, Light, and Wakefulness plus sleep debt. Dynamic Recovery Score blends heart rate, HRV, and skin temperature — your ring health tracker, health tracker ring, health monitoring ring, and stress monitor in one. Circadian Alignment and Caffeine Window PowerPlugs make this sleep monitoring smart ring smarter than anything else on your finger. All-in-One Ring Fitness Tracker 20+ workout modes. Works as a heart rate monitor, step tracker, pedometer, activity tracker, health tracker, and calorie tracker. This fitness tracker ring, ring fitness tracker, and smart ring fitness tracker is the only ring tracker you need — a fitness ring for men, health rings for men, fit ring for men, smart rings for men, and fitness ring for women all in one. Women's Health & Pregnancy Mode Track ovulation, cycles, and pregnancy. This smart ring for women and smart ring for woman offers Pregnancy Mode with trimester-specific insights — no other smart rings can match it.
