Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20

Ultrahuman Ring AIR Sizing Kit

Say goodbye to guesswork. This sizing kit features ten unique sizing options, ensuring you find your perfect fit for the best experience with your Ultrahuman Ring AIR.

£9.99
In stock. Next day delivery available.

Buy now, pay later from £2.50/mo with

Free UK shipping over £50, free returns.
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Key Benefits

  • Find your ideal fit with ten distinct sizing options.

  • Ensures accurate measurements based on the actual ring.

  • Correct sizing is crucial for reliable health insights.

Finding the right fit is crucial for the best experience with your Ultrahuman Ring AIR. This specially designed sizing kit includes ten unique sample sizes, helping you identify your ideal match before choosing a final size. A proper fit ensures comfort for all-day wear and prevents the ring from being too loose or too tight, which is vital for accurate health tracking.

Unlike standard ring sizes, Ultrahuman Ring AIR sizes are unique to the brand and tailored for a personalised fit. The kit’s ten sample rings cater to various finger sizes, ensuring reliable contact between your skin and the ring’s sensors. By using the sizing kit, you’re setting up your Ultrahuman Ring AIR to deliver dependable health insights from day one.

While the sizing rings are made from different materials than the final product, they mimic the feel and fit of the actual Ultrahuman Ring AIR.

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Curation Process™

With our Healf Curation Process, we do the work for you. Shop with confidence knowing every item has been tried, tested, and curated for you.

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Brand Discovery

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Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

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Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

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By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.