Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker(Size 14) - UHRA-AA-14

• SIZE FIRST - Ultrahuman Ring sizes are different from standard ring sizes. Purchase a sizing kit first to get the perfect ring AIR size. Ring AIR is available in 10 sizes from 5-14. HSA/FSA ELIGIBLE - Giving you added flexibility for your healthcare spending. SLEEP INDEX - The ring AIR serves as an ideal sleep tracker companion. Derived to help you understand the various sleep stages such as deep sleep, REM sleep, Light sleep and being awake, during different stages of sleep, different metabolic processes of the body occur for growth, repair, restoration, and maintenance. MOVEMENT INDEX - Designed to help you move across the day enabling better metabolism and cardiovascular functioning. The ring AIR serves as a comprehensive fitness tracker, step tracker, calorie tracker, metabolic equivalents (METs), and more. RECOVERY SCORE - It is derived from a blend of key metrics including heart rate monitoring, Heart Rate Variability (HRV) and skin temperature, interpreting the signals your body sends and enabling you to monitor your overall well-being. WORKOUT TRACKING - The Ring AIR is a fitness ring with dedicated "Workout Mode" that tracks various activities, giving you deeper insight into your overall workout metrics, by tracking heart rate during workouts, users can gain insights into their cardiovascular response, track intensity levels, and make informed decisions to improve their fitness outcomes. MENSTRUAL & PREGNANCY INSIGHTS: Experience tailored guidance across every phase of your cycle, from Menstruation to Ovulation, Follicular phase, and Luteal phase. Seamlessly transition to Pregnancy Mode for personalized insights throughout each trimester. These features render the AIR the ultimate smart ring for women. CIRCADIAN PHASE ALIGNMENT - Geek out on various insights such as temperature minima, align your lifestyle, and optimize your sleep-wake cycle for improved cognitive function, energy levels, and hormone balance, with timely, actionable nudges for sunlight exposure and movement to shift your sleep schedule earlier. INSIDE THE AIR - Boasting a smooth inner shell and constructed with fighter jet grade titanium, Ultrahuman Ring AIR boasts a 6-day battery life, wireless charging, and water resistance up to 100 m. Available in 15 languages - The Ultrahuman App is now available in English, French, Thai, Chinese, Malay, Indonesian, Czech, Japanese, Korean, German, Spanish, Italian, Swedish, Portuguese & Russian.