

💍 Size smart, track smarter — your perfect Oura Ring awaits!
The Oura Ring 4 Sizing Kit is designed to help you find the precise fit for the Oura Ring 4, which features heart rate monitoring, activity tracking, and sleep analysis. Unique sizing differs from standard US ring sizes, ensuring maximum comfort and data accuracy. Purchase includes a $10 credit toward your ring, with fast delivery and flexible wear options on any finger.












| ASIN | B0D9WVWXR1 |
| Colour | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,372) |
| Date First Available | 15 October 2024 |
| Item Weight | 50 g |
| Item model number | JZ98-54870 |
| Manufacturer | Oura |
| Other display features | Wireless |
| Package Dimensions | 16.7 x 11.3 x 1.2 cm; 50 g |
| Special features | Heart Rate Monitor, Activity Tracker, Sleep Monitor |
| Whats in the box | Oura Ring 4 Sizing Kit |
K**L
Very Quick delivery
Very quick delivery and the product is perfect as expected. Very affordable and useful
A**ー
後で判明したがアマゾンとその他で1000円近く値段が違う。類似の商品にも出て来なかった。 24時間装着とあったので着けて寝たら、かぶれでしまった。本商品とは素材が違うが、高いので怖くて買えない
F**G
Great sizing tool. However, Amazon SG doesnt allow the actual Oura Ring to be delivered. The status has been “Ordered Received…”
Z**Z
Great works as advertised
D**A
Satisfecha con el producto
N**K
Perfect service
Trustpilot
1 month ago
1 month ago