
Wrongduck Care — 1-Year Warranty
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Size chart
WRONGDUCK SIZE GUIDE
Find your best ring size
Click Find My Size to measure online in a few simple steps. You’ll get your recommended Wrongduck ring size instantly—no chart matching needed.
Wrongduck ring size chart
Choose the store size that matches your measured diameter or circumference.
| Store size | Diameter | Circumference | ISO / EU | UK |
|---|---|---|---|---|
| 6 | 16.5 mm | 51.8 mm | 52 | L ½ |
| 7 | 17.3 mm | 54.4 mm | 54 | N ½ |
| 8 | 18.1 mm | 56.9 mm | 57 | P ½ |
| 9 | 18.9 mm | 59.5 mm | 59 | R ½ |
| 10 | 19.7 mm | 62.0 mm | 62 | T ½ |
| 11 | 20.5 mm | 64.5 mm | 65 | V ½ |
| 12 | 21.4 mm | 67.1 mm | 67 | X ½ |
| 13 | 22.2 mm | 69.7 mm | 70 | Z1 |
| 14 | 23.0 mm | 72.2 mm | 72 | Z3 |
Between sizes? Choose the larger size for a more comfortable fit. Availability varies by ring model.
Measure with paper or thread
- Wrap a narrow strip of paper or non-stretch thread around the base of your finger.
- Keep it comfortably snug without squeezing your finger.
- Mark where the two ends meet.
- Lay it flat and measure the marked length in millimetres.
- Match that circumference to the chart above.
Measure at the end of the day when your hands are at a normal temperature, and repeat the measurement twice.
Shipping Information
Before the shipping,please allow us 1-2 business days for processing your order, timing depends on the actual situation.
Once your order has been shipped, we will immediately provide you with tracking information. Delivery times vary by region, Orders typically take 4-10 days to arrive.
How much is the subscription fee?
No subscription required. With a one-time purchase, you get full access to all health tracking features.
Package List
Smart Ring*1
Charging case *1
Charging cable *1
User manual *1
Wrongduck App Download
Looking for the correct app for your Wrongduck Smart Ring? Visit our Wrongduck App Download page, select your Smart Ring model, and download the compatible app for your device.
One year of warranty coverage for your Wrongduck device, with up to one replacement for a covered hardware fault under normal use.
One plan covers one main product. Accessories are excluded. Support is provided directly by Wrongduck at support@wrongduck.com.
This optional plan does not reduce your existing warranty or statutory rights.

Wrongduck Care — 1-Year Warranty
Si tiene alguna pregunta, no dude en contactarnos. Le responderemos lo antes posible, en un plazo de 24 horas entre semana.
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Política de devolución de 30 días
Tenemos una política de devolución de 30 días, lo que significa que tiene 30 días después de recibir su artículo para solicitar una devolución.
Para obtener más detalles, consulte: Política de devoluciones -
Información de envío
Tiempo de procesamiento:
- Antes del envío, por favor permítanos 1-2 días hábiles para procesar su pedido, el tiempo depende de la situación real (días festivos/fines de semana excluidos).
Tiempo de envío (estimado):
- Costo de envío estándar: $5.99 por pedido.
- Envío gratis: Pedidos superiores a $49.99.
- Los tiempos de entrega varían según el destino:
- Europa: 4-9 días hábiles
- Estados Unidos: 5-8 días hábiles
- Australia y Canadá: 5-10 días hábiles
- Otras regiones: 4-12 días hábiles
Para más detalles, consulte: Política de envío

