--- product_id: 745263890 title: "Ring 4 Sizing Kit - Size Before You Buy - Unique Sizing Classification for Smart Rings - Receive Credit for Purchase" brand: "oura" price: "€ 23.70" currency: EUR in_stock: true reviews_count: 9 url: https://www.desertcart.pt/products/745263890-ring-4-sizing-kit-size-before-you-buy-unique-sizing store_origin: PT region: Portugal --- # Precision sizing for perfect fit Unique sizing classification system 2-year limited manufacturer warranty Ring 4 Sizing Kit - Size Before You Buy - Unique Sizing Classification for Smart Rings - Receive Credit for Purchase **Brand:** oura **Price:** € 23.70 **Availability:** ✅ In Stock ## Summary > 📏 Nail your perfect fit before you commit—because precision matters! ## Quick Answers - **What is this?** Ring 4 Sizing Kit - Size Before You Buy - Unique Sizing Classification for Smart Rings - Receive Credit for Purchase by oura - **How much does it cost?** € 23.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/745263890-ring-4-sizing-kit-size-before-you-buy-unique-sizing) ## 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 - • **Risk-Free Purchase:** Sizing kit lets you size before you buy, avoiding costly returns and guesswork. - • **Gift-Ready Convenience:** Ideal gift solution for loved ones—know their size without spoiling the surprise. - • **Durability Meets Comfort:** Lightweight and sleek sizing kit that complements the premium Oura Ring experience. - • **Perfect Fit, Perfect Data:** Ensure your Oura Ring 4 fits flawlessly for maximum accuracy and comfort. - • **Tailored Sizing Experience:** Unique sizing classification designed exclusively for Oura Ring 4 smart rings. ## Overview The Oura Ring 4 Sizing Kit offers a unique, precision sizing system tailored specifically for the Oura Ring 4 smart ring. It ensures optimal fit for enhanced data accuracy and comfort, backed by a 2-year limited warranty. This kit is the smartest way to size before purchase, reducing guesswork and returns, and makes a thoughtful gift for anyone ready to upgrade their wellness tech. ## Description Oura Ring 4 sizes are different than standard sizes. The Oura Ring 4 Sizing Kit is the best way to ensure a comfortable and accurate experience. Purchase an Oura Ring 4 Sizing Kit. Purchase your Oura Ring 4. Slip on your Oura Ring 4 and download the Oura App. New members get the first month of Oura Membership free, then it’s ₹599 per month. The Oura Ring 4 Sizing Kit is the best way to ensure an accurate experience. Sleek and comfortable, Oura Ring seamlessly fits into your life from a workout to a night out. Stay present without notifications on your wrist. Check the Oura App when you want to. Oura Ring 4 is fully titanium: one of the strongest metals on earth. Durable, lightweight, and water-resistant. Oura Ring 4 delivers incredibly accurate data and personalised health insights to help you be at your best. The Oura Ring 4 Sizing Kit makes the perfect gift for your loved ones who want an Oura Ring 4 but you may not know their Oura Ring 4 size. ## Features - Sizing Kit 4 - Size Before You Buy - Unique Sizing Classification for Smart Rings - A properly fitting Oura Ring 4 results in the highest possible data accuracy, comfort, and overall experience - WARRANTY: 2 year limited manufacturer warranty ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0DWFSW47F | | Best Sellers Rank | #3,628 in Electronics (See Top 100 in Electronics) #3 in Rings | | Colour | White | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (1,409) 4.5 out of 5 stars | | Date First Available | 1 March 2025 | | Generic Name | Smart Ring | | Gps | No GPS | | Importer | Rashi Peripherals Limited, A BLDG Survey 186 Dongripada, Poman Village Vasai Bhiwandi Road Palghar 401208 India. | | Item Dimensions Lxwxh | 14 x 14 x 2.5 Centimeters | | Item Model Number | JZ98-54867 | | Item Weight | 0.55 g | | Manufacturer | Oura, Oura Health OY Elektroniikkatie 10 Oulu Oulu 90590 Finland https://ouraring.com | | Net Quantity | 1.0 Count | | Other Display Features | Wireless | | Packer | Oura Health OY Elektroniikkatie 10 Oulu Oulu 90590 Finland https://ouraring.com | | Product Dimensions | 14 x 14 x 2.5 cm; 0.55 g | | Whats In The Box | Oura Ring 4 Sizing Kit | ## Images ![Ring 4 Sizing Kit - Size Before You Buy - Unique Sizing Classification for Smart Rings - Receive Credit for Purchase - Image 1](https://m.media-amazon.com/images/I/61RUDe87DIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to use *by on Reviewed in India 14 July 2026* Easy to use and a accurate sizing ### ⭐⭐⭐⭐⭐ Oura *by on Reviewed in India 26 April 2026* Superb ### ⭐ Oura ring *by on Reviewed in India 19 May 2026* Main product was faulty so the money spent on this was a wasteLet down by Oura company as had ordered it on urgent basis as was to go on a trek wearing and assessing the data ## 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 for Heritage and Horizon Rings-Measure Sizes 6-13 for Fit Before Purchasing, Sizes are Unique to Oura --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/745263890-ring-4-sizing-kit-size-before-you-buy-unique-sizing](https://www.desertcart.pt/products/745263890-ring-4-sizing-kit-size-before-you-buy-unique-sizing) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-03*