ULTRAHUMAN Ring Air Sleep and Fitness Tracker, Smart Ring for Men and Women, No App Fee for Standard Functions, Up to 6 Days Battery Life (Size 10)

BUY THE SIZE SET FIRST: Ultrahuman ring sizes are different from standard ring sizes. First, buy the Ultrahuman size set that includes a ring sizer to accurately determine your size. The air ring is available in 10 sizes (5-14) for a comfortable, secure fit. Using the size kit helps to avoid returns and exchanges and ensures you choose the right size before purchasing. COMPREHENSIVE HEALTH MONITORING: The Ultrahuman Ring measures a variety of readings, including sleep, activity, stress, heart health, exercise, training and recovery. Keep track of your health and fitness goals with detailed insights to optimise your performance and well-being. INSIGHTS IN WOMEN'S HEALTH: The advanced health features of the Ultrahuman Ring allow monitoring of ovulation, cycle and pregnancy. Thanks to multibiomarker-based monitoring, you can predict the 7-day fertile window and accurately determine ovulation in women with a desire to have children. Access cycle monitoring and biomarker-based personalized guidance for each phase (menstruation, ovulation, follicular and luteal phase). Pregnancy mode provides expectant mothers with personalized insights into their pregnancy during each trimester. ONE APP, NO SUBSCRIPTION: Enjoy all the essential standard features of the Ultrahuman Ring, including sleep, activity, stress, heart rate, heart rate variability, skin temperature and recovery without subscription - on the Ultrahuman app. ADVANCED SLEEP MONITORING: The Ultrahuman Ring provides detailed insights into all sleep stages - REM sleep, deep sleep, light sleep and waking state - giving you practical tips and hints to improve your sleep so you are fit for the day. It also records your sleep deficit to understand your overall sleep quality and identify potential for improvement. Optimize your recovery with precise, personalized sleep information. RECOVERY AND ACTIVITY INSIGHTS: Track steps, workouts and calories to get insights into your activities. Ring AIR also supports you in better recovery with improved recovery tracking. Dynamic Recovery combines key readings such as heart rate, HRV and skin temperature, tracks sleep and lifestyle, providing valuable insights. Minimal shape factor and durability: the ultra-human ring is made of space-grade titanium and offers unsurpassed strength and lightweight comfort. It is waterproof up to 100 m making it perfect for everyday wear, training and even swimming. A GROUNDBREAKING PERSPECTIVE ON STRESS: Get a deeper understanding of stress with a unique "stress rhythm score" that takes into account the fluctuations in your heart rate (HR), heart rate variability (HRV) and resting heart rate (RHR) against the background of your circadian rhythm. POWERPLUGS - Your path to more health is unique. With PowerPlugs you can focus on the essentials. Understand how your heart reacts to activities, stress and rest with the Cardio Adaptability PowerPlug. Track your screen time and its impact on your health with the Screentime PowerPlug. Increase your attention and alertness with the Caffeine Window PowerPlug. And much more. 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 and Russian.