Ring sizing for Shopify product pages
Help shoppers choose a ring size before checkout.
Shoppers measure a finger or an existing ring, compare international sizes, and confirm an available variant without leaving the product page.
Free during launch · No camera · No Liquid edits
Solitaire ring
$179.00
EU 54 · UK N · JP 14
Illustrative storefront preview. Open the product demo to test the live sizing flow.
AI transparency: shopper sizing uses fixed conversion tables and matching rules; no external AI provider receives storefront sizing data. Read the current release notice.
THE DECISION GAP
Size charts list numbers. Shoppers still have to guess.
Ring Sizer Pro keeps the sizing decision next to the product and the available variants.
Convert a measurement, return to the product, then guess between listed variants.
Confirm the measured result without changing material or style.
SHOPPER FLOW
From product page to size confirmation.
Four guided steps. No account, camera, or separate size chart.
Open sizing
The app block sits beside the merchant's existing size selector.
Calibrate
A physical credit card establishes the screen scale.
Measure
Adjust the guide to a finger or an existing ring.
Confirm
Only an exact available existing-ring match can be handed off.
Finger estimates and nearby sizes remain guidance. The shopper keeps the decision.
GUARDED HANDOFF
No silent size changes.
Material and style remain intact. A size is applied only when the existing-ring result maps exactly to an available variant.
See the exact-match flow →MERCHANT SETUP
Start with one ring product.
Add the theme app block beside the size selector, choose which ring products qualify, and verify the handoff before expanding.
Request setup previewFree while we validate
Paid plans are planned later after usage and support needs are clear.
Free launch
$0per month · up to 1,000 recorded completed measurements / monthPreview the free launch
FAQ
Does Ring Sizer Pro edit my Shopify theme code?
No. Add the app block in the Theme Customizer next to your size selector.
Will it show on every product?
Only where you want it — title, type, tag, vendor, and collection rules.
Can it select a size variant?
Only an exact, available match from the existing-ring flow.
Does it use the camera?
No. Shoppers calibrate with a credit card and adjust an on-screen guide.