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📏 Nail your perfect fit before you buy — because precision is the new luxury.
The Oura Ring 4 Sizing Kit is a specialized tool designed to help you find the exact ring size for optimal comfort and data accuracy. Unlike standard rings, Oura Ring 4 sizes range from 4 to 15 without half sizes, making this kit essential. Wearing the sizer for at least 24 hours ensures the ring fits securely without rotation, enhancing the ring’s health tracking capabilities. Plus, purchasing the kit grants you a $10 credit toward your Oura Ring 4, making sizing a smart and cost-effective first step.
| ASIN | B0D9WVWXR1 |
| Additional Features | Unique Sizing Kit with Fit Credit |
| Band Material Type | Stainless Steel |
| Best Sellers Rank | #38,932 in Fashion ( See Top 100 in Fashion ) #46 in Ring Sizers |
| Brand | OURA |
| Built-In Media | Oura Ring 4 Sizing Kit |
| Cellular Technology | Not Supported |
| Color | Sizing Kit |
| Colour | Sizing Kit |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Customer Reviews | 4.5 out of 5 stars 3,409 Reviews |
| Display Type | No Display |
| GPS | No GPS |
| GPS Geotagging Functionality | No GPS |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate, Sleep Duration |
| Model Number | JZ98-54870 |
| Shape | Round |
| Special features | Unique Sizing Kit with Fit Credit |
| Style | Sizing Kit |
| Style Name | Sizing Kit |
| Supported Application | Fitness Tracker |
| Unit Count | 1 Count |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
S**R
Good
Good
A**ー
かぶれた
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
Oura Ring cannot be delivered to some locations.
Great sizing tool. However, Amazon SG doesnt allow the actual Oura Ring to be delivered. The status has been “Ordered Received…”
D**A
Satisfecha con el producto
Satisfecha con el producto
A**R
As described.
Ring size kit was perfect for figuring out my Oura ring size.
N**K
excellent
Perfect service
Trustpilot
2 weeks ago
1 week ago