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📏 Nail your fit, own your wellness journey.
The Oura Ring 4 Sizing Kit offers a precision sizing experience to guarantee optimal comfort and data accuracy for your smart ring. Lightweight and made in the USA, this kit ensures you select the perfect size before purchase, supported by a 2-year warranty and seamless integration with the Oura App.












| ASIN | B0DWFSW47F |
| Best Sellers Rank | #108,135 in Electronics ( See Top 100 in Electronics ) #39 in Rings |
| Colour | White |
| Country of Origin | USA |
| Customer Reviews | 4.4 4.4 out of 5 stars (848) |
| Date First Available | 1 March 2025 |
| GPS | No GPS |
| Item Dimensions LxWxH | 14 x 14 x 2.5 Centimeters |
| Item Weight | 0.55 g |
| Item model number | JZ98-54867 |
| Manufacturer | Oura |
| Other display features | Wireless |
| Product Dimensions | 14 x 14 x 2.5 cm; 0.55 g |
| Whats in the box | Oura Ring 4 Sizing Kit |
V**Y
Oura
Superb
A**K
Slecht.
Duurde lang voordat het aankwam en en geen 10 euro bon gekregen voor het kopen van de oura ring 4.
J**A
100% recomendable antes de comprar el ōura 4
El tallaje de los moldes es literal al anillo, por lo cual revisar bien ya que no existe diferencia en el diámetro anillo en sí con respecto al molde.
V**S
Utile
Molto utile per misurare il diametro e la vestibilità sul dito. Il problema è che il dispositivo che si dovrebbe acquistare dopo la misurazione non è utile per rilevare la pressione sanguigna
B**1
Parfait
Parfait pour trouver la bonne taille de bague Un conseil : Garder là au moins une journée
D**Y
Great idea
Perfect way to be sure of getting the correct size for my ring
Trustpilot
3 weeks ago
2 days ago