---
product_id: 723531832
title: "Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase"
brand: "oura"
price: "€ 39.37"
currency: EUR
in_stock: true
reviews_count: 1
category: "Oura"
url: https://www.desertcart.es/products/723531832-oura-ring-4-sizing-kit-size-before-you-buy-oura
store_origin: ES
region: Spain
---

# Instant $10 credit Precision sizing kit Lightweight & comfortable Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase

**Brand:** oura
**Price:** € 39.37
**Availability:** ✅ In Stock

## Summary

> 📏 Size smart, track smarter — don’t miss out on your perfect fit!

## Quick Answers

- **What is this?** Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase by oura
- **How much does it cost?** € 39.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/723531832-oura-ring-4-sizing-kit-size-before-you-buy-oura)

## Best For

- oura enthusiasts

## Why This Product

- Trusted oura brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Savings:** Get a $10 credit applied automatically toward your Oura Ring 4 purchase.
- • **Wear It Your Way:** Fits any finger on either hand—flexibility that matches your lifestyle.
- • **Exclusive Sizing System:** Unique ring sizes tailored beyond standard US measurements for a custom feel.
- • **Fast & Reliable Delivery:** Quick shipping means you start sizing and tracking sooner.
- • **Perfect Fit, Perfect Data:** Ensure your Oura Ring 4 fits flawlessly for max accuracy and comfort.

## Overview

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.

## Description

The Oura Ring 4 Sizing Kit allows for you and those around you to find the ideal fit before purchasing. With a sizing kit purchase, a 10 credit will automatically be applied to your Oura Ring 4 at checkout. A properly fitting Oura Ring 4 will result in the highest possible data accuracy, comfort, and overall experience. Oura Ring 4 sizes are slightly different from standard ring sizes, so it is important to size yourself using our tools and to follow our sizing instructions. Oura Ring 4 works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing your Oura Ring 4 on your index, middle, or ring finger.

Review: Very Quick delivery - Very quick delivery and the product is perfect as expected. Very affordable and useful

## Features

- Heart Rate Monitor, Activity Tracker, Sleep Monitor

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** OURA
- **Colour:** White
- **Included Components:** Oura Ring 4 Sizing Kit
- **Manufacturer:** Oura

## Images

![Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase - Image 1](https://m.media-amazon.com/images/I/518Qh+G3I5L.jpg)
![Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase - Image 2](https://m.media-amazon.com/images/I/71m9EcEY+tL.jpg)
![Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase - Image 3](https://m.media-amazon.com/images/I/51CzPCL9TxL.jpg)
![Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase - Image 4](https://m.media-amazon.com/images/I/51d-W9BxrXL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Quick delivery
*by K***L on 25 July 2025*

Very quick delivery and the product is perfect as expected. Very affordable and useful

## Frequently Bought Together

- Oura Ring 4 Sizing Kit - Size Before You Buy Oura Ring 4 - Unique Sizing - Receive Credit for Purchase
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- RingConn Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Only Smart Ring

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**Shop now:** [https://www.desertcart.es/products/723531832-oura-ring-4-sizing-kit-size-before-you-buy-oura](https://www.desertcart.es/products/723531832-oura-ring-4-sizing-kit-size-before-you-buy-oura)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-13*