Ultrahuman Ring Air-Size-13-AsterAirBlac

**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. **NO SUBSCRIPTION REQUIRED** Download the Ultrahuman app and get all of the available insights with no subscription. **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. **DESIGNED TO KEEP YOU MOVING** The 'Movement Index' is designed to keep you moving all day for optimum glucose metabolism, and 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