ULTRAHUMAN Ring AIR-Smart Ring Health Tracker Size First Sizing Kit Sleep Tracker Smart Ring for Men/Women Fitness Tracker (Sizing Kit with Swatch Sizing kit) (Sizing Kit Sizing Kit)

\"Step into a new era of health monitoring with the Ultrahuman Smart Ring. Designed for both men and women this sleek fitness ring is your perfect companion for a healthier more balanced life. Combining cutting-edge technology with sophisticated design it offers comprehensive insights into your sleep recovery and overall wellness. The Ultimate Form Factor for Sleep and Recovery Tracking Unmatched Accuracy for Health Tracking Experience the unparalleled accuracy of fingertip biomarker data. Unlike wrist-based wearables the Ultrahuman Smart Ring leverages the higher blood flow and arteriole density of your fingers ensuring precise readings of your vital signs. Whether you're monitoring your sleep stages heart rate variability (HRV) or skin temperature trust in the superior precision that only a smart ring can provide. Featherlight Design for Ultimate Comfort At just 2.4 grams this smart ring is 11 times lighter than typical smartwatches making it one of the lightest fitness tr