Product
Ring1C
Medical-Grade AI Health Ring
Ring1C
Find Your Perfect Ring Size
Please choose your ring size before ordering. The complimentary sizing kit is included with your Ring1C shipment, not sent separately before purchase.
Size Guide
Measure at Home, Choose with Precision
A simple paper strip is all you need. We recommend completing these steps before purchasing.
Prepare a paper strip
Cut a paper strip approximately 10cm long and 0.5cm wide. Ensure it is flat and smooth.
Available Sizes
Complimentary
Complimentary Ring Sizing Kit
Please choose your ring size before ordering using the measuring guide on this page — we ship the size you select. A complimentary sizing kit is packed with your Ring1C shipment for post-delivery confirmation; it is not sent separately before purchase.
💍 What if the size is not perfect?
If you chose the wrong size, you may ask about purchasing a second ring at 10% off; this does not remove your right to request a return within 30 days of delivery. For non-quality returns, the customer pays return shipping.
🌊 Share sizing reference with family
You may share the sizing kit with family as a reference. Returning-customer discounts (if applicable) are separate from the optional wrong-size second-ring 10% offer — confirm details with support.
Confirm Fit After Delivery
The kit ships with your order so you can confirm the most comfortable size after delivery.
Share with Family
Share the kit with family members as a sizing reference.
Prepare for Future Purchases
Record your size for easy future purchases of other colors.
Choose Size Before Checkout
Use the on-page measuring guide to choose your size before you order.
Free Sizing Kit
Packed with your Ring1C shipment (not sent before purchase)
Wrong-Size Option
Optional Second Ring at 10% Off
Please choose your size with the guide before ordering; the sizing kit ships with your Ring1C. If you chose the wrong size, contact us about buying a second Ring1C at 10% off. This is optional and does not replace your right to request a return within 30 days of delivery. For non-quality returns, the customer pays return shipping.
Choose your size with the guide before checkout
Confirm fit with the kit included in your shipment
Optionally ask about a second ring at 10% off, or request a return
International Shipping
DHL International Shipping
MATEYOU Ring1C ships directly from China via DHL International Express to destinations worldwide. DHL provides reliable tracking and professional cross-border logistics.
Global Delivery
Covering US, Europe, Southeast Asia and major markets
DHL Express
Professional international express, safe and reliable
Real-time Tracking
Full parcel tracking, monitor delivery status anytime
Estimated Delivery
US/Europe 5-10 business days, Southeast Asia 3-7 business days
Ships from China
via DHL International Express
Ready to Find Your Size?
Use our at-home measurement guide to confirm your size, then choose your favorite color and start understanding your health continuously.