

📏 Size smart, track smarter — don’t miss out on your perfect fit!
The Oura Ring 4 Sizing Kit offers a unique, precise sizing experience designed specifically for the Oura Ring 4’s non-standard ring sizes. Lightweight and comfortable, it ensures optimal fit for accurate heart rate, activity, and sleep monitoring. Purchase includes an automatic $10 credit toward your Oura Ring 4, making sizing before buying both easy and rewarding.











| ASIN | B0D9WVWXR1 |
| Colour | White |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,466) |
| 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 day ago