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SMART SENSING - Oura tracks more than 30 vital constants: sleep, activity, stress, heart health, menstrual cycle and more. The Oura Ring 4 is powered by Smart Sensing technology, which accurately records data day and night
OURA SUBSCRIPTION - The first month is free when buying a ring. Afterwards, it costs €5.99/month. Offer only valid for new members. You can hire an annual plan for €69.99. Subscription is linked to the Oura app, not the ring
FIND OUT YOUR SIZE BEFORE PURCHASE - Oura Ring 4 sizes are different from conventional rings
SIZE BEFORE YOU BUY - Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit and receive a $10 Amazon credit towards the future purchase of an Oura Ring 4.
OURA MEMBERSHIP - First month of membership is free with your purchase, $5.99/mo afterwards. Offer available to new members only. Or opt for the annual prepaid option for $69.99. Membership is tied to your account via the Oura App, not your physical ring.
ACCURACY - SMART SENSING - Oura tracks over 30 biometrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night.
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Quality Material: Crafted from durable ABS and resin, this ring sizer tool boasts strong sturdiness. It is not easy to deform and supports repeated use, ensuring long-term reliability for size measurement.
Package Content: You will receive 1 complete ring sizing kit, which is fully sufficient to meet your needs for determining the right ring size.
Accurate Design: The ring size measuring tool is engineered to ensure precise finger size readings. It effectively helps avoid fit issues caused by incorrect ring sizes, making it a trustworthy finger sizer for your needs.
GIVE THE GIFT OF OURA RING 4 - This gifting kit takes the guesswork out of gifting, allowing the recipient to purchase the correct size and preferred finish of their Oura Ring 4. Gift card sold separately.
CHOOSE A FINGER - Oura Ring 4 works on all fingers. Make sure to size the finger you plan to wear your Oura Ring on. For optimal performance and accuracy, we recommend wearing your Oura Ring on your index, middle, or ring finger.
A FEW EASY STEPS - Purchase the gifting kit and a gift card with your desired value. Your friend or loved one will size themselves, and then purchase their Oura Ring 4 using the gift card.
3. ACCURATE SIZING FOR COMFORT AND FIT Place the sizing tool at the base of your finger and wear it for 24 hours to simulate real-life comfort. This ring sizer helps avoid issues like loose fit or discomfort, ensuring your smart ring or oura ring accessories fit perfectly.
2. EASY-TO-USE FINGER MEASUREMENT TOOL Simply follow the measuring card instructions to measure your finger circumference. This ring size measuring tool is ideal for determining the right size for smart rings, stackable rings, or ceramic rings. No more guessing your ring size!
1. PERFECT COMPATIBILITY WITH OURA RING Designed specifically as a oura ring sizing kit, compatible with Oura Ring Gen 4, Gen 3, and smart rings. Whether you're using a ring sizing kit for women or men, this smart ring sizer ensures a perfect fit before purchasing your final ring.
【Accurate Measurement】This ring sizer measuring tool ensures precise finger size readings, helping you avoid fit issues caused by incorrect ring sizes for a perfect fit every time.
【Comprehensive Size Range】Our ring sizing kit includes sizes 4 to 15, providing comprehensive measurement options to cater to various finger sizes for men, women, and even children.
【Durable Construction】Crafted from high-quality ABS and resin, our ring sizer offers strong sturdiness, supports repeated use, and ensures long-term reliability for consistent measurement accuracy.
Waterproof & Secure: Stay worry-free during workouts, handwashing, or rainy days—these stickers stay firmly in place and won’t peel off easily.
Skin-Friendly & Eco-Friendly: Made of high-quality, non-toxic silicone that’s gentle on your skin and environmentally safe. Remove without residue or damage to your ring.
Adjustable & Customizable Fit: Easily resize your smart ring for a perfect fit! Our transparent silicone stickers can be cut or layered to achieve your desired thickness, ensuring comfort all day. For best adhesion, clean your ring before applying.
Simple Operation Our smart ring sizing tool is extremely easy to use. Just slide the measuring card over your finger or directly measure your finger’s circumference to find the matching ring size. For the most accurate result, we recommend wearing the finger ring sizer for over 24 hours.
Accurate Design The ring size measuring tool is engineered to ensure precise finger size readings. It effectively helps avoid fit issues caused by incorrect ring sizes, making it a trustworthy finger sizer for your needs.
Quality Material Crafted from durable ABS and resin, this ring sizer tool boasts strong sturdiness. It is not easy to deform and supports repeated use, ensuring long-term reliability for size measurement.
PRECISION - SMART SENSING - Oura tracks over 30 biotics, including sleep, activity, stress, heart health, and women's health standards. The Oura Ring 4 adopts Smart Sensing technology that adapts to you, to give you accurate and continuous data around the clock.
OURA Membership - 1 Month Organic is FREE with your purchase, then .25.99 REAL MONTH after. Offer available for new members only. Or, choose the annual pre-pay option for 299.00 rial. Organization is connected to your account via Oura App, not the ring itself
LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, the Oura Ring 4 lets you focus on today. From Workout To A Evening - You will feel completely free and forget you are wearing it. Until others notice and admire its beauty.
Product Contents: You will receive 1 piece of ring sizing kit, providing accurate measurement and comfortable everyday wear.
Premium Material: Made of premium plastic, our sample rings for sizing are lightweight and reliable, ensuring comfortable wearing. You can buy with confidence.
Compatibility: The ring sizing kit is compatible with 4. (Please note that our product is not sponsored or endorsed by, or affiliated with the brands it fits.)
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