Ultrahuman Ring AIR Sizing Kit - Sizing Guide for Your Smart Wearable Ring

Find your perfect fit with the Ultrahuman Ring AIR Sizing Kit. This comprehensive kit offers high-grade plastic ring sizers in a broad range of sizes, from 6 to 12. Please note that the sizes of the Ultrahuman Ring AIR may deviate slightly from standard US ring sizes and we do not offer half sizes. The ring sizers in this kit are meticulously crafted to imitate the width and circumference of actual Ultrahuman Rings. They are designed to guide you towards an optimal fit.

• SIZE FIRST - Ultrahuman Ring sizes are different from standard ring sizes. Purchase Ultrahuman Sizing Kit first to get the perfect Ring AIR size. Ring AIR is available in 10 sizes from 5-14.
• THE RING OF YOUR DREAMS - Ultrahuman Ring AIR is the perfect sleep tracker ring. Along with insights on all your sleep stages — REM, Deep Sleep, Light Sleep and Wakefulness, get actionable steps to improve sleep so you're ready for the day.
• HSA/FSA ELIGIBLE - Ring AIR is HSA/FSA eligible, making it easier to invest in your health.
• DESIGNED TO KEEP YOU MOVING - The 'Movement Index' is designed to increase your non-exercise energy usage through the day. With this all-in-one activity and fitness tracker, you can track steps, workouts and calories for insights into your all-day activity. All features work together seamlessly, to make sure you get the most out of the smart ring. Workout Tracking is now easy, with a dedicated Workout Mode that tracks Heart Rate during workouts — you can get insights into your cardiovascular response, track intensity levels, and make informed decisions to improve your fitness outcomes.