--- product_id: 811946275 title: "Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported" price: "3887.25 DT" currency: TND in_stock: true reviews_count: 6 url: https://www.desertcart.tn/products/811946275-oura-ring-4-ceramic-midnight-size-8-smartring-non-standard store_origin: TN region: Tunisia --- # 8-day battery life Water resistant up to 100m Tracks 50+ health metrics Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported **Price:** 3887.25 DT **Availability:** ✅ In Stock ## Summary > 💍 Elevate your wellness game with the ring that knows you best. ## Quick Answers - **What is this?** Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported - **How much does it cost?** 3887.25 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/811946275-oura-ring-4-ceramic-midnight-size-8-smartring-non-standard) ## 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 - • **Unplug & Go:** Up to 8 days of battery life means freedom from constant charging. - • **Sleek Ceramic Design:** High-performance zirconia ceramic for durability and minimalist elegance. - • **All-Day Smart Sensing:** Continuous, adaptive tracking of sleep, heart rate, stress, and more. - • **Seamless App Integration:** Sync effortlessly with iOS and Android for real-time health insights. - • **Precision Sizing Kit Included:** Get the perfect fit before you buy—no guesswork, just comfort. ## Overview The Oura Ring 4 Ceramic Midnight is a cutting-edge smart ring designed for 24/7 wear, crafted from durable zirconia ceramic with a sleek minimalist look. It tracks over 50 health metrics including sleep, heart rate, stress, and metabolic health using adaptive Smart Sensing technology. With up to 8 days of battery life and water resistance up to 100 meters, it offers seamless Bluetooth connectivity to iOS and Android devices, empowering professionals to optimize their health effortlessly. ## Description From the manufacturer Size before you buy Easy to wear, everywhere No interruptions Built to last Accurate by design The Oura Ring 4 Sizing Kit is the best way to ensure an accurate experience. With a purchase of the sizing kit, you'll receive a £10 desertcart credit towards your Oura Ring 4 Ceramic. 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. The high-performance ceramic exterior is designed to keep up with you and all that you do. Use the Ceramic Polishing Pad to care for your ring. Redeemable after purchase. Oura Ring 4 delivers incredibly accurate data and personalized health insights to help you be at your best. Always Wearable Oura Ring 4 is more comfortable with a fully round interior with discreet, recessed sensors. It's water resistant and can withstand heat, and cold. Always Wearable Oura Ring 4 is more comfortable with a fully round interior with discreet, recessed sensors. It's water resistant and can withstand heat, and cold. High Performance Ceramic Oura Ring 4 Ceramic is made of high-performance ceramic. Durable, lightweight, water resistant. Use the Ceramic Polishing Pad to care for your ring. Redeemable after purchase. High Performance Ceramic Oura Ring 4 Ceramic is made of high-performance ceramic. Durable, lightweight, water resistant. Use the Ceramic Polishing Pad to care for your ring. Redeemable after purchase. Long Life Battery 5 to 8 days of battery means you can track your health 24/7 without charging every night. Long Life Battery 5 to 8 days of battery means you can track your health 24/7 without charging every night. Smart Sensing A first-of-its-kind sensing platform, Smart Sensing adapts to your unique finger, ensuring continuous, accurate data from over 50 health metrics — day and night. Smart Sensing A first-of-its-kind sensing platform, Smart Sensing adapts to your unique finger, ensuring continuous, accurate data from over 50 health metrics — day and night. Sleep Activity Stress Hearth Health Women's Health Metabolic Health Brighter moods, better energy, improved immunity— it all starts with sleep. Wake up to in-depth analysis about your sleep, so you can improve your habits and transform how you feel. Whether you're running a marathon or running errands, Oura tracks your daily activity and workouts while helping you strike a balance between movement and recovery. Oura will help you identify signs of stress and understand how well your body handles it. You'll know when you need to incorporate more self-care practices and how to recover from long term stressors. From monitoring your daily heart rate and HRV to discovering your Cardiovascular Age and Cardio Capacity, Oura helps you take care of one of the key indicators of your overall health — your heart. Your cycle impacts your mood, sleep, activity and more, every day. Oura helps you understand how your cycle affects your body, so you can make better, informed decisions about your holistic health. See a nutritional breakdown of your meals and understand how what you eat impacts your holistic health. Integrate the Stelo Glucose Biosensor (sold separately) to track your glucose levels. Size Before You Buy Step 1 Purchase an Oura Ring 4 Sizing Kit and receive a £10 desertcart credit towards your Oura Ring 4. Step 2 Purchase your Oura Ring 4 Ceramic, the £10 credit will be automatically applied at checkout. Step 3 Download the Oura App. New members get the first month of Oura Membership free, then it’s £5.99 per month. Step 4 Oura Ring 4 Ceramic What’s in the Box Oura Ring 4 Oura Ring 4 Charger and USB-C Cable Review: Wear The Oura Ring Sizer Before Purchasing - First off, wear the oura ring sizer for a day longer than recommended. As your fingers really do swell a lot more than you realise, and the Oura is a lot chunkier than a normal band of a ring. It also should be worn on your index finger on your non dominant hand. I bought this ring to track my health as I already wear a smart watch which is more activity based, and after doing lots of research I decided that it was what I was looking for than my watch ( worn mostly for notification from phone, track swimming etc) I was a little disappointed to find that the app that is used for Oura is a paid app at £69.99 a year. But broken down over 12 months it's not too bad. It takes a couple of weeks to start to gather enough data to accurately start tracking your health. But I'm so impressed by everything it shows. My sleep data is far more accurate than what my watch shows, as is my step count and it regularly shows your heart rate. It's lightweight to wear ( I have the ceramic ring) and you can buy silicone covers to prevent scratches and marks if you feel it's needed. I personally feel it's making me pay much more attention to my daily life and what my body needs. Highly recommend Review: Easily scratched - Gets easily scratched and pricey! ## Technical Specifications | Specification | Value | |---------------|-------| | Battery capacity | 5000 Milliamp Hours | | Battery cell composition | Lithium Polymer | | Connectivity technology | Bluetooth, USB | | Operating system | Proprietäres Betriebssystem | | Special feature | Schlafmonitor, Herzfrequenzmesser, Fitness-Tracker, Stressmonitor, Gesundheitsindex für Damen | | Wireless communication standard | Bluetooth | ## Product Details - **Battery capacity:** 5000 Milliamp Hours - **Battery cell composition:** Lithium Polymer - **Brand:** OURA - **Connectivity technology:** Bluetooth, USB - **GPS:** No GPS - **Model name:** Oura Ring 4 Ceramic Midnight - Size 8 - **Operating system:** Proprietäres Betriebssystem - **Shape:** Round - **Special feature:** Schlafmonitor, Herzfrequenzmesser, Fitness-Tracker, Stressmonitor, Gesundheitsindex für Damen - **Wireless communication standard:** Bluetooth ## Images ![Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported - Image 1](https://m.media-amazon.com/images/I/61039+D-8-L.jpg) ![Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported - Image 2](https://m.media-amazon.com/images/I/71HmslZLCGL.jpg) ![Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported - Image 3](https://m.media-amazon.com/images/I/71r531jp9WL.jpg) ![Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported - Image 4](https://m.media-amazon.com/images/I/71-gVbDReRL.jpg) ![Oura Ring 4 - Ceramic Midnight - Size 8 - Smartring | Non-Standard Fit – Measure with Compatible Size Kit | Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS/Android Supported - Image 5](https://m.media-amazon.com/images/I/71lriiKKJtL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Wear The Oura Ring Sizer Before Purchasing *by C***E on 6 June 2026* First off, wear the oura ring sizer for a day longer than recommended. As your fingers really do swell a lot more than you realise, and the Oura is a lot chunkier than a normal band of a ring. It also should be worn on your index finger on your non dominant hand. I bought this ring to track my health as I already wear a smart watch which is more activity based, and after doing lots of research I decided that it was what I was looking for than my watch ( worn mostly for notification from phone, track swimming etc) I was a little disappointed to find that the app that is used for Oura is a paid app at £69.99 a year. But broken down over 12 months it's not too bad. It takes a couple of weeks to start to gather enough data to accurately start tracking your health. But I'm so impressed by everything it shows. My sleep data is far more accurate than what my watch shows, as is my step count and it regularly shows your heart rate. It's lightweight to wear ( I have the ceramic ring) and you can buy silicone covers to prevent scratches and marks if you feel it's needed. I personally feel it's making me pay much more attention to my daily life and what my body needs. Highly recommend ### ⭐ Easily scratched *by M***N on 4 June 2026* Gets easily scratched and pricey! ### ⭐⭐⭐⭐⭐ First look & impression Oura Ring 4 Ceramic Cloud *by S***G on 21 May 2026* Really the only Lord of the Ring Oura Ring Best wearable tech ring , best for easy wear night slip in finger ring to track my sleep . Fantastic sleep data analytics. --- ## 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.tn/products/811946275-oura-ring-4-ceramic-midnight-size-8-smartring-non-standard](https://www.desertcart.tn/products/811946275-oura-ring-4-ceramic-midnight-size-8-smartring-non-standard) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-26*