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Find your perfect fit with the Ultrahuman Ring 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 may deviate slightly from standard US ring sizes and that we, unfortunately, 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. However, please be aware that the authentic Ultrahuman Ring will bear a marginally higher weight due to its unique material composition. Once you’ve determined your ideal size using our kit, simply visit Amazon and search for ‘Ultrahuman Ring’ to complete your purchase. Begin your Ultrahuman journey today with the right fit.
Trying the sizing ring: For an accurate assessment, you should wear the ring such that the engraved size number is toward the palm of your hand. Wear your ring sizer for at least 24 hours to know your fit.
Finding the correct finger: For optimal comfort and advanced sleep tracking, we recommend you wear the Ultrahuman Ring on your index, middle, or ring finger.
Fit check: The fit should be snug (not too tight or too loose). Here are a few simple ways to assess this — If you rotate the ring on your finger, it should not rotate freely.
Choosing your Ring: After you’ve precisely determined your size using our sizing kit, head over to Amazon to order your Ultrahuman Smart Ring.
Build Quality: While our sizing kit is made of high-grade plastic, the Ultrahuman Ring stands leagues apart in its material composition. Crafted from fighter-jet grade titanium and coated with scratch-resistant tungsten Carbide, your Ultrahuman Smart Ring promises superior quality and durability.

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