--- product_id: 734025604 title: "Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life" brand: "oura" price: "25585289₫" currency: VND in_stock: true reviews_count: 13 category: "Oura" url: https://www.desertcart.vn/products/734025604-ring-4-stealth-size-10-smart-ring-size-first-ring store_origin: VN region: Vietnam --- # 8 days battery life Water resistant titanium build 30+ biometric sensors Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life **Brand:** oura **Price:** 25585289₫ **Availability:** ✅ In Stock ## Summary > 💍 Own your health, stealthily and stylishly. ## Quick Answers - **What is this?** Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life by oura - **How much does it cost?** 25585289₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/734025604-ring-4-stealth-size-10-smart-ring-size-first-ring) ## 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 - • **Effortless 8-Day Power:** Stay unplugged and unstoppable with a week-plus battery life that keeps pace with your busiest days and wildest nights. - • **Next-Level Smart Sensing:** Track over 30 biometrics including sleep, heart rate, stress, and women’s health with adaptive precision that learns and evolves with you. - • **Titanium Tough, Feather Light:** Experience all-day comfort and durability with the first all-titanium smart ring designed for 24/7 wear—even in the rain or at the gym. - • **Personalized Fit, Zero Guesswork:** Use the exclusive sizing kit to find your perfect ring size before you buy—because precision fit means maximum comfort and accuracy. - • **Seamless Connectivity & Compatibility:** Flawlessly syncs with your smartphone via Bluetooth, delivering real-time insights without missing a beat. ## Overview The OURA Ring 4 Stealth is a cutting-edge smart ring crafted from durable titanium, offering up to 8 days of battery life and advanced biometric tracking across 30+ health metrics. Designed for continuous 24/7 wear, it features water resistance and seamless Bluetooth connectivity, delivering personalized health insights through the Oura app. The included sizing kit ensures a perfect fit, making it the ultimate discreet wellness companion for professionals who demand precision and style. ## Description Product Description 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. 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, water-resistant. Oura Ring 4 delivers incredibly accurate data and personalised health insights to help you be at your best. Fully Titanium Oura Ring 4 is fully titanium: one of the strongest metals on earth. Durable, lightweight, water resistant. Fully Titanium Oura Ring 4 is fully titanium: one of the strongest metals on earth. Durable, lightweight, water resistant. Smart Sensing A first-of-its-kind sensing platform, Smart Sensing adapts to your unique finger, ensuring continuous, accurate data from over 30 biometrics - 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 30 biometrics - day and night. Long battery life Up to 8 days of battery means you can track your health 24/7 without charging every night. Long battery life Up to 8 days of battery means you can track your health 24/7 without charging every night. 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. Sleep Activity Readiness Stress Heart Health Women’s Health Wake up to in-depth sleep analysis, 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. Know when to push it and when to take it easy. Your Readiness Score tells you how energised you are using over 30 biometrics - it can even tell when you might be getting sick. 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 practises 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. Size Before You Buy Step 1 Purchase an Oura Ring 4 Sizing Kit. Step 2 Purchase your Oura Ring 4. Step 3 Slip on your Oura Ring 4 and download the Oura App. Step 4 New members get the first month of Oura Membership free, then it’s ₹599 per month. Oura Ring 4 What's in the Box Oura Ring 4 Charger and USB-C Cable Review: Go for it. Its definitely worth it. - Awesome product. Perfection in everything. Does not throw numbers and data and interpretations at you immediately. Comfortable to wear. Just make sure you have tried the sizing kit before hand for atleast 4 to 6 hours if not 24 hours. I am getting a battery life of 5 days plus. Review: Must have smart ring - Amazing product. I was waiting to see the smart ring feedback. Great insight into fitness and sleep. Step count quite accurate. Battery easily last 5 to 6 days ## Features - 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 999 INR desertcart credit towards the future purchase of an Oura Ring 4 - OURA MEMBERSHIP - First month of membership is free with your purchase, INR 599/mo afterwards. Offer available to new members only. Opt for annual prepaid option for INR 6999. 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 - LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments - DESIGNED FOR 24/7 WEAR - The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin - WARRANTY: 2 year limited manufacturer warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D9WVKWXN | | Band Material Type | Titanium | | Battery Average Life | 5 Days | | Battery Capacity | 18 | | Battery Cell Composition | Lithium Polymer | | Battery Cell Type | Lithium Polymer | | Best Sellers Rank | #4,144 in Electronics ( See Top 100 in Electronics ) #5 in Rings | | Box Contents | Battery | | Brand Name | OURA | | Colour | Stealth | | Communication Feature | Bluetooth | | Compatible Devices | Smartphone, Tablet | | Compatible Phone Models | Compatible with iOS and Android devices | | Connectivity Technology | Bluetooth | | Country of Origin | India | | Customer Reviews | 4.1 out of 5 stars 7,205 Reviews | | GPS | No GPS | | GPS Geotagging Functionality | No GPS | | Human Interface Input | Touchscreen | | Importer Contact Information | Rashi Peripherals Limited, A BLDG Survey 186 Dongripada, Poman Village Vasai Bhiwandi Road Palghar 401208 India. | | Item Dimensions | 24 x 24 x 8 Millimeters | | Item Type Name | Smart Ring | | Item Weight Unit of Measure | 6.3 Ounces | | Manufacturer | OURA, Oura Health OY Elektroniikkatie 10 Oulu Oulu 90590 Finland https://ouraring.com | | Manufacturer Contact Information | Oura Health OY Elektroniikkatie 10 Oulu Oulu 90590 Finland https://ouraring.com | | Metrics Measured | Sleep Duration, Heart Rate, Stress | | Model Number | JZ90-54218-10 | | Packer Contact Information | Oura Health OY Elektroniikkatie 10 Oulu Oulu 90590 Finland https://ouraring.com | | Product Features | Sleep Monitor, Heart Rate Monitor, Activity Tracker, Stress Monitor | | Shape | Round | | Special Feature | Sleep Monitor, Heart Rate Monitor, Activity Tracker, Stress Monitor | | Style Name | Metallic | | Supported Application | Oura App | | Unit Count | 1.00 Count | | Warranty Description | 2 years warranty | | Water Resistance Depth | 100 Metres | | Water Resistance Level | Water Resistant | | Wearable Computer Type | Smart Ring | | Wireless Communication Standard | Bluetooth | | Wireless Compability | Bluetooth | ## Product Details - **Battery Cell Composition:** Lithium Polymer - **Connectivity Technology:** Bluetooth - **GPS:** No GPS - **Special Feature:** Activity Tracker, Heart Rate Monitor, Oxymeter (SpO2), Sleep Monitor, Stress Tracking - **Wireless Communication Standard:** Bluetooth ## Images ![Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 1](https://m.media-amazon.com/images/I/71dB5XwAxPL.jpg) ![Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 2](https://m.media-amazon.com/images/I/61-FIQaMJYL.jpg) ![Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 3](https://m.media-amazon.com/images/I/61F-yOPrq8L.jpg) ![Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 4](https://m.media-amazon.com/images/I/71e0oyD3dpL.jpg) ![Ring 4 - Stealth - Size 10 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 5](https://m.media-amazon.com/images/I/71rKR+WEuPL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: How long should my ring work between charges?** A: Oura Ring 4 typically lasts 5-8 days on a full charge, depending on usage. Contact Oura Member Care if you have questions or concerns with battery life, and they will ensure your problem is resolved **Q: How do I choose the right Oura Ring size?** A: Using the Oura Ring 4 Sizing Kit, choose a finger for your ring. We recommend the index, middle or ring finger. Wear the sizer ring for 24 hours to ensure the fit is secure and comfortable over the course of your day. **Q: What's included?** A: Oura Ring 4, Oura Ring 4 Charger, and USB-C Cable. **Q: How do I see my Oura Ring metrics?** A: After activating your Oura Ring, you can choose a monthly or annual membership to unlock full access to Oura’s features, daily health and wellness metrics, and personalized guidance. **Q: Can I use more than one ring?** A: Oura Members can now connect more than one Oura Ring 4 to their Oura App and quickly switch between them. Note, this feature only supports wearing and syncing data from one active Oura Ring at a time. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Go for it. Its definitely worth it. *by D***Y on 4 April 2026* Awesome product. Perfection in everything. Does not throw numbers and data and interpretations at you immediately. Comfortable to wear. Just make sure you have tried the sizing kit before hand for atleast 4 to 6 hours if not 24 hours. I am getting a battery life of 5 days plus. ### ⭐⭐⭐⭐⭐ Must have smart ring *by X***Z on 2 April 2026* Amazing product. I was waiting to see the smart ring feedback. Great insight into fitness and sleep. Step count quite accurate. Battery easily last 5 to 6 days ### ⭐ No payment option for a plan in India *by S***H on 29 April 2026* I am unable to take a plan as they don’t have a payment option for India. Called their HO and they are saying since it’s a recent launch in India - they too don’t know. Can someone help how were they able to take a plan in India ? I am in a IPhone ## Frequently Bought Together - Oura Ring 4 - Stealth - Size 10 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life - Oura Ring 4 Charger - Size 10 - Charging Dock and USB-C Cable - Charges Oura Ring 4 up to 8 Days - 10 Pack Ring Cover Compatible with Oura Ring Gen 4/Oura Ring Gen 3 Horizon/Gen 3 Heritage, Surport Charging with Cover on, Anti-Scratch Elastic Silicone Ring Protector for Men Women Working Out Gym --- ## 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.vn/products/734025604-ring-4-stealth-size-10-smart-ring-size-first-ring](https://www.desertcart.vn/products/734025604-ring-4-stealth-size-10-smart-ring-size-first-ring) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*