--- product_id: 745263901 title: "OURA Ring 4th Generation Sizing Kit – Confirm the Perfect Size Before Purchase – Unique Size Standard for Smart Rings – Credit Granted Upon Purchase" price: "166 kr" currency: DKK in_stock: true reviews_count: 13 url: https://www.desertcart.dk/products/745263901-oura-ring-4th-generation-sizing-kit-confirm-the-perfect-size store_origin: DK region: Denmark --- # ¥1,500 credit on ring purchase Precise sizing from 4 to 15 Try on with family & friends OURA Ring 4th Generation Sizing Kit – Confirm the Perfect Size Before Purchase – Unique Size Standard for Smart Rings – Credit Granted Upon Purchase **Price:** 166 kr **Availability:** ✅ In Stock ## Summary > 📏 Nail your perfect fit before you commit! ## Quick Answers - **What is this?** OURA Ring 4th Generation Sizing Kit – Confirm the Perfect Size Before Purchase – Unique Size Standard for Smart Rings – Credit Granted Upon Purchase - **How much does it cost?** 166 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/745263901-oura-ring-4th-generation-sizing-kit-confirm-the-perfect-size) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wear It Your Way:** Designed to be worn on any finger, with best accuracy on index, middle, or ring finger. - • **Smart Credit Bonus:** Get ¥1,500 credit toward your OURA Ring purchase when you buy the sizing kit. - • **Share the Experience:** Try sizes on multiple fingers and with loved ones to find your ideal fit. - • **Exclusive Size Standard:** 4th Gen ring sizes differ from typical rings—measure accurately with the dedicated kit. - • **Perfect Fit, Every Time:** Custom sizing kit ensures your OURA Ring fits flawlessly before you buy. ## Overview The OURA Ring 4th Generation Sizing Kit is a precision tool designed to help you find the perfect ring size from 4 to 15, tailored to the unique sizing standard of the latest OURA Ring. It allows multiple fittings for you and your circle, comes with a ¥1,500 credit toward your ring purchase, and ensures you confidently select the ideal fit for optimal comfort and tracking accuracy. ## Description The Oura Ring 4 sizing kit is a tool for yourself and those around you to find the perfect size before purchasing. With the purchase of a sizing kit you will automatically apply a credit of 10 to work with your Oura Ring 4 at checkout Review: 自分自身のことが客観的データにより大変よく分かります。 健康管理に最適なものです。 Review: Oura Ring第3世代の電池持ちが悪くなってきたので、Oura Ring第4世代購入のためサイジングキットを購入した カラーはOura Ring第3世代と同じゴールド、第3世代は右人差指に着用してるので同じ指のOura Ring第4世代を購入予定です ## Features - OURA Ring 4th Generation - The sizing kit is an ideal tool for finding the perfect size before making a purchase Check the perfect fit with a custom sizing kit that allows you and your family and friends to try it on - Purchase the sizing kit to receive a ¥1,500 desertcart credit for use when purchasing the "OURA Ring 4th Generation" (sizing kit is non-returnable and subject to terms and conditions) - OURA The 4th generation of the Oura Ring has a size that is slightly different from common ring sizes, so it is important to measure accurately with the dedicated sizing kit and follow the included instructions Available in sizes 4 to 15 - COMFORT - Can be worn on any finger — The 4th generation Oura Ring can be worn on any finger of either hand, but for higher accuracy, it is recommended to wear it on the index, middle, or ring finger Measure the size with the finger you plan to wear it on ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DWFSW47F | | Amazon Bestseller | #2,646 in Electronics ( See Top 100 in Electronics ) #121 in Wearable Technology (Electronics) | | Color | Sizing Kit | | Customer Reviews | 4.4 4.4 out of 5 stars (1,079) | | Date First Available | July 16, 2025 | | Item Weight | 0.55 g | | Item model number | JZ98-54867 | | Other display features | Wireless | | Product Dimensions | 14 x 14 x 2.5 cm; 0.55 g | | Special features | Activity Tracker | | Whats in the box | 1 x Oura Ring Gen 4 Sizing Kit | ## Images ![OURA Ring 4th Generation Sizing Kit – Confirm the Perfect Size Before Purchase – Unique Size Standard for Smart Rings – Credit Granted Upon Purchase - Image 1](https://m.media-amazon.com/images/I/51f5JLXrJAL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by 吉***俊 on April 14, 2026* 自分自身のことが客観的データにより大変よく分かります。 健康管理に最適なものです。 ### ⭐⭐⭐⭐⭐ Review *by ミ***ス on March 4, 2026* Oura Ring第3世代の電池持ちが悪くなってきたので、Oura Ring第4世代購入のためサイジングキットを購入した カラーはOura Ring第3世代と同じゴールド、第3世代は右人差指に着用してるので同じ指のOura Ring第4世代を購入予定です ### ⭐⭐⭐⭐⭐ Review *by え***ん on December 11, 2025* サイジングキットでサイズを試したら、バッチリ合うリングを選べました！ 実際に届いたリングは指にぴったりで、つけた瞬間に嬉しくなりました😊 買ってよかった〜！安心してリングを選べるのでおすすめです。 ## 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.dk/products/745263901-oura-ring-4th-generation-sizing-kit-confirm-the-perfect-size](https://www.desertcart.dk/products/745263901-oura-ring-4th-generation-sizing-kit-confirm-the-perfect-size) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-05-10*