---
product_id: 723531832
title: "Oura Ring 4 - Silver - Size 8 - Size Before You Buy"
brand: "oura"
price: "£1.66"
currency: GBP
in_stock: false
reviews_count: 6
category: "Oura"
url: https://www.desertcart.co.uk/products/723531832-oura-ring-4-silver-size-8-size-before-you-buy
store_origin: GB
region: United Kingdom
---

# Custom fit for max accuracy Precision sizing kit Fits all fingers & hands Oura Ring 4 - Silver - Size 8 - Size Before You Buy

**Brand:** oura
**Price:** £1.66
**Availability:** ❌ Out of Stock

## Summary

> 📏 Nail your perfect fit before you commit!

## Quick Answers

- **What is this?** Oura Ring 4 - Silver - Size 8 - Size Before You Buy by oura
- **How much does it cost?** £1.66 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/723531832-oura-ring-4-silver-size-8-size-before-you-buy)

## 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

- • **Beyond Standard Sizes:** Unique sizing system tailored for Oura Ring 4, avoiding guesswork and half sizes.
- • **Maximize Data Accuracy:** A precise fit means your health insights are sharper and more reliable.
- • **Perfect Fit, Every Time:** Custom sizing kit ensures your Oura Ring 4 fits flawlessly before you buy.
- • **Comfort Meets Technology:** Lightweight and ergonomic design for all-day wear without compromise.
- • **Universal Finger Compatibility:** Wear it on any finger, any hand—optimal on index, middle, or ring finger.

## Overview

The Oura Ring 4 Sizing Kit is an essential tool designed to help you find the exact size for your Oura Ring 4, which uses a unique sizing system different from standard rings. This ensures maximum comfort and data accuracy by allowing you to try on sizes 4 through 15 (no half sizes) on your preferred finger before purchase. Compatible with all fingers and hands, the kit guarantees a flawless fit for the most precise health tracking experience.

## Description

Oura Ring 4 Sizing Kit - Before You Buy the Unique Sizing, Not Standard US Sizes - Receive Credit for Purchase, Sizing Kit, Oura App : desertcart.in: Jewellery

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

## Features

- OURA RING 4 SIZING KIT - The Oura Ring 4 Sizing Kit is the ideal way to find the perfect size. It’s a custom sizer that allows for you, and those around you, to find the perfect fit before purchasing
- SIZE BEFORE YOU BUY - Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit. For additional details, see “From the brand” section below
- NOT STANDARD SIZING - Oura Ring 4 sizes are slightly different from standard ring sizes, so it is important to size yourself using our Oura Ring 4 Sizing Kit. Oura Ring 4 is available in sizes 4-15. There are no half sizes
- COMFORT AND ACCURACY - A properly fitting Oura Ring will result in the highest data accuracy, comfort, and overall experience
- CHOOSE A FINGER - 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. Size the exact finger you plan to wear your Oura Ring 4 on

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WVWXR1 |
| Band Material Type | Stainless Steel |
| Box Contents | Oura Ring 4 Sizing Kit |
| Brand Name | OURA |
| Cellular Technology | Not supported |
| Closure Type | Push Back |
| Colour | Sizing Kit |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Country of Origin | USA |
| Customer Reviews | 4.5 out of 5 stars 3,625 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate, Sleep Duration |
| Model Number | JZ98-54870 |
| Product Features | Heart Rate Monitor, Activity Tracker, Sleep Monitor |
| Shape | Round |
| Style Name | Sizing Kit |
| Supported Application | Fitness Tracker, Sleep Monitor |
| Unit Count | 1 Count |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |

## Product Details

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

## Images

![Oura Ring 4 - Silver - Size 8 - Size Before You Buy - Image 1](https://m.media-amazon.com/images/I/518Qh+G3I5L.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## 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

### ⭐⭐ かぶれた
*by A***ー on 9 September 2025*

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

### ⭐ Oura Ring cannot be delivered to some locations.
*by F***G on 1 March 2025*

Great sizing tool. However, Amazon SG doesnt allow the actual Oura Ring to be delivered. The status has been “Ordered Received…”

## Frequently Bought Together

- Oura Ring 4 Sizing Kit - Size Before You Buy Oura Ring 4 - Unique Sizing - Receive Credit for Purchase
- Oura Ring Gen3 Sizing Kit - Size Before You Buy The Oura Ring Gen3 - Unique Sizing - Receive Credit for Purchase
- 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.co.uk/products/723531832-oura-ring-4-silver-size-8-size-before-you-buy](https://www.desertcart.co.uk/products/723531832-oura-ring-4-silver-size-8-size-before-you-buy)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-09-18*