Ultrahuman - Ring PRO Sizing Kit | Sizing Guide for Your Smart Wearable Ring | Receive Gift Card with Purchase - Black - (2026)
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About this product
Ultrahuman Ring PRO sizes are different from standard ring sizes. Purchase the Sizing Kit first to find your perfect fit — available in 10 sizes from 5-14.
TRY ON THE SIZING RING
It is important to first use the sizing kit to determine your Ultrahuman Ring PRO size. Wear your ring sizer for at least 24 hours to know your fit. Wear the ring such that the engraved size number is toward the palm of your hand.
FINDING THE CORRECT FINGER
For optimal comfort and advanced sleep tracking, we recommend that you wear the Ultrahuman Ring PRO on your index, middle, or ring finger.
FIT CHECK
You will get highest data accuracy and optimal comfort with a properly fitting Ultrahuman Ring PRO. Here are a few simple ways to assess this — If you rotate the ring on your finger, it should not rotate freely.
CHOOSE YOUR RING
After you've precisely determined your size using the sizing kit, head over to Amazon to order your Ultrahuman Ring PRO.
BUILD QUALITY
While the sizing kit is made of high-grade plastic, the Ultrahuman Ring PRO stands leagues apart in its material composition. Crafted from space grade titanium with a unibody architecture, your Ultrahuman Ring PRO promises superior quality and long-term durability.
PICK YOUR COLOR
Once you know your size, you can now choose the color of your Ultrahuman Ring PRO from the swatch card provided in the box. The swatch card showcases all 4 color variants, find the perfect match for your style.
- Operating System CompatibilityApple iOS, AndroidApp CompatibleNoBuilt-in Storage0 gigabytesUsage Time360 hoursMetrics MeasuredNot ApplicableProtective QualitiesNone
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Ultrahuman Ring PRO sizes are different from standard ring sizes. Purchase the Sizing Kit first to find your perfect fit — available in 10 sizes from 5-14.

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| Pros for Ultrahuman - Ring PRO Sizing Kit | Sizing Guide for Your Smart Wearable Ring | Receive Gift Card with Purchase - Black - (2026) | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Battery Life, Overall Performance, Sleep Tracking, Ease of Use, Accuracy | There were no pros for this product— |
| Cons for Ultrahuman - Ring PRO Sizing Kit | Sizing Guide for Your Smart Wearable Ring | Receive Gift Card with Purchase - Black - (2026) | |||
| There were no cons for this product— | There were no cons for this product— | Band Comfort, Size, Connectivity, Step Counter, Button Quality | There were no cons for this product— |
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