AR try-on prototype · runs fully in the browser, nothing uploaded ·
v7.2 — live capture fix
💍
Point your camera at the back of your hand and the Energy Ring appears on your ring finger in real time.
Loading hand tracking…
Best in good light, hand ~30–50 cm from the camera, fingers slightly spread.
STEP 1 — Take the photo
Card on table, finger on card
1. Lay any bank card flat on a table (good light, plain background).
2. Rest the target finger flat on the card, straight and relaxed.
3. Hold the phone directly above (~40 cm) and take the photo so the whole card and your whole hand are visible — the AI needs the full hand to tell base from knuckle.
The card's exact 85.60 mm width becomes the measuring tape — camera angle is corrected automatically.
Hand:
Finger:
Starting camera…
Lay the card in the dashed frame with your finger on it. It captures automatically when aligned, steady and bright.
🔒 Privacy: the photo is processed entirely on your device and is never uploaded or stored. Tip: use the back of the card or cover the number — it's only needed as a size reference.
STEP 2 — Mark the card corners
Drag the 4 dots onto the card's corners
Use the magnifier to place each dot on a corner of the card. Order doesn't matter, and rounded corners are fine: Auto-refine fits the card's straight edges and uses the point where they would meet, so the corner radius never affects the scale — rough placement is all it needs.
Corners are detected automatically — adjust any dot if needed, then Rectify.
STEP 3 — Measure the finger
Fit the calipers to the finger edges
Drag the two blue dots onto the finger's edges where the ring will sit (base of the finger). The dots move freely in any direction, so a tilted finger or photo is fine — the measurement follows the line between them. Drag the middle of the line to move both together. "Auto-snap" fine-tunes both ends onto the exact edges. Then repeat at the knuckle — the ring must slide over it.
Finger profile:
—
Internal test — did this size fit?
Finger cross-sections are elliptical, not round — we apply a 0.94 shape correction from top-view width to ring inner diameter. Measure both base and knuckle; pick the size that clears the larger. Fingers swell ~½ size when warm — measure at the end of the day for best results.
STEP 1 — Calibrate your screen
Match a real bank card to this one
Hold any standard bank/ID card (85.6 mm wide) against the screen and drag the slider until the card below is exactly the same width.
ENERGY OS
Matching the card's long side (85.60 mm).
STEP 2 — Measure
Place an existing ring on the circle
Take a ring that fits the target finger and lay it on the screen. Adjust until the circle exactly fills the inside of the ring. No ring? Place your finger over the circle and match its width at the knuckle.
US 9
18.9 mm inner ⌀
⚠️ Smart rings are sized more strictly than jewelry (sensor contact matters). This tool gives a strong estimate — final confirmation should use the physical sizing kit shipped before the ring, like Oura and RingConn do.