# Oura Ring 4 Ceramic Midnight Size 13 | Smart Ring for Sleep, Activity, Women's Health **Brand:** OURA **SKU:** md6847 **ASIN:** B0FKQYNBTY **Canonical URL:** https://crowcrowcrow.com/p/oura-ring-ceramic-midnight-size-sleep-activity-women-health-advisor-days-battery-life-md6847/md6847 **Category:** electronics **Subcategory:** Wearable Technology **Availability:** in_stock **Price (INR, all-inclusive):** ₹56,435 **Discount:** 21% **Customer rating:** 4.10/5 from 10 ratings ## Description The Oura Ring 4 Ceramic Midnight (Size 13) offers advanced sleep, activity, and women's health tracking with Smart Sensing for accuracy. Enjoy up to 8 days of battery life in a comfortable, sleek ceramic design. Imported from USA, duties included, arrives {{ccc_delivery_eta}}. ## Highlights - Up to 8 Days Battery Life — Focus on your health without constant charging. The long-lasting battery ensures continuous tracking from workouts to sleep, providing a complete picture of your well-being. - Accurate Health Metrics — Smart Sensing technology adapts to your body, delivering precise data on sleep, activity, stress, heart health, and women's health, empowering informed health decisions. - Comfortable & Durable Design — Crafted from high-performance ceramic in Midnight, this lightweight ring is comfortable for 24/7 wear, even during sleep, with recessed sensors gentle on sensitive skin. - Intuitive App Insights — The Oura App presents your health data clearly and actionably, making it easy to understand sleep stages, readiness scores, and activity trends without feeling overwhelmed. ## Key features - ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, 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 - ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing - 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 - OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring - HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping ## Why choose this product - Advanced Health Insights from USA — The Oura Ring 4 Ceramic Midnight brings cutting-edge health tracking technology directly from the US. Unlike basic fitness trackers, it offers deep insights into sleep quality, recovery readiness, stress levels, and women's health cycles. Smart Sensing ensures data accuracy, adapting to your unique physiology. This imported device provides a comprehensive view of your well-being, empowering you to make proactive health choices backed by science. All customs duties and GST are pre-paid, ensuring a transparent landed price in INR. - Who It's For & Who Should Skip — Ideal for individuals seeking detailed, non-intrusive health monitoring, especially those interested in optimizing sleep, recovery, and understanding their body's signals. Perfect for busy professionals, athletes, or anyone wanting a stylish, tech-forward accessory. Skip if you require a device with a screen, extensive app notifications, or if you have concerns about ceramic finish durability with heavy metal contact activities. Consider titanium if your lifestyle involves frequent contact with metal objects. ## How to use 1. Use the Oura Ring 4 Sizing Kit to determine your precise finger size before purchasing. Ensure a snug but comfortable fit for accurate sensor contact. — Size Your Ring 2. Wear the ring 24/7, including during sleep. The recessed sensors are designed for comfort and continuous data collection. Avoid prolonged contact with metal objects to protect the ceramic finish. — Wear Continuously 3. Download the Oura App on your iOS or Android device. Sync your ring regularly, ideally daily, to view your sleep, activity, readiness, and other health insights. — Sync with Oura App 4. The ring offers up to 8 days of battery life. Use the included charger to recharge the ring when the battery is low, typically once a week. — Charge as Needed ## Product details | Field | Value | |---|---| | Sensors | Smart Sensing Technology | | Metrics Tracked | Sleep, Activity, Readiness, Stress, Heart Health, Metabolic Health, Women's Health, and over 50 others | | Allergens | Hypoallergenic materials, gentle on sensitive skin | | Free From | Oxybenzone-free (if applicable to ring tech) | | Directions | Wear on finger, sync with Oura App daily. Charge as needed. | | Frequency | Continuous tracking, sync daily | | Recommended Use | 24/7 wear for comprehensive data | | Cost per use | Calculated based on {{ccc_offer_price}} and ring lifespan | | Shelf life after opening | N/A (Durable good) | | Reapplication math | N/A (Durable good) | | Contraindications | Avoid prolonged contact with metal objects to prevent transfer marks on ceramic finish. Consider removing for heavy lifting or contact sports. | | Allergens / common irritants | None reported for standard wear. | | Brand | OURA | | Model | JZ90-57455-13 | | Color | Midnight | | Size | 13 (US Standard) | | Material | Ceramic Exterior, Recessed Sensors | | Weight | Lightweight | | Battery Life | Up to 8 days | | Connectivity | Bluetooth (iOS & Android Compatible) | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Attributes - **Unit count:** 1 ## Frequently asked questions ### How is this Oura Ring 4 authentic vs. local alternatives? This Oura Ring 4 Ceramic Midnight is sourced directly from authorized US retailers, factory-sealed, and imported per-order. It is the same SKU and formulation US buyers receive. All customs duties and GST are included in the listed INR price, with delivery within {{ccc_delivery_eta}} via ExpressBox tracked shipping. ### Will the Oura Ring 4 I receive match the US retailer's page? Yes, orders are placed against the listed US retailer page at the time of purchase. Batch codes, packaging, and labels match what the US retailer dispatches. Photographs of every order are taken before international handover for verification. ### Is the Oura Ring 4 safe for daily wear and health? Yes, the Oura Ring 4 is designed for continuous 24/7 wear and is considered safe. It uses Smart Sensing technology to track health metrics without direct skin irritation, and its materials are generally hypoallergenic. The data collected provides insights into your well-being. ### Are Oura Rings healthy to wear? Yes, Oura Rings are designed to be healthy to wear. They provide valuable data on sleep, activity, and recovery, helping users understand their body's signals and make informed lifestyle choices to improve overall health and well-being. ### How do I choose the right Oura Ring size in India? Accurate sizing is crucial as Oura Rings use unique sizing different from standard jewelry. It is essential to use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing. A credit from the sizing kit purchase is applied at checkout. ### How to use the Oura Ring 4? Wear the Oura Ring 4 on your finger continuously. Sync it daily with the Oura App on your iOS or Android device to view your sleep, activity, and readiness data. Charge the ring as needed using the included charger. ### What is the best Oura Ring 4? The 'best' Oura Ring 4 depends on your preference. The Ceramic Midnight model offers a sleek, durable finish and advanced health tracking. Key features include Smart Sensing, up to 8 days of battery life, and comprehensive health insights via the Oura App. ### Can I use the Oura Ring 4 daily? Yes, the Oura Ring 4 is designed for daily, 24/7 wear. Its comfortable, lightweight design and long battery life allow for continuous tracking of sleep, activity, and other health metrics without interruption. ### What are the side effects of wearing an Oura Ring? There are generally no significant side effects reported from wearing the Oura Ring. Its design is comfortable and gentle on the skin. Some users note potential cosmetic wear on the ceramic finish from metal contact, but this is not a health side effect. ### What are the benefits of the Oura Ring? The Oura Ring provides benefits such as detailed sleep analysis, readiness scores for optimal activity planning, stress monitoring, women's health tracking, and personalized AI-driven health insights, all contributing to a better understanding and management of your overall well-being. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B0FKQYNBTY-0.webp 2. https://images.crowcrowcrow.com/B0FKQYNBTY-1.webp 3. https://images.crowcrowcrow.com/B0FKQYNBTY-2.webp 4. https://images.crowcrowcrow.com/B0FKQYNBTY-3.webp 5. https://images.crowcrowcrow.com/B0FKQYNBTY-4.webp 6. https://images.crowcrowcrow.com/B0FKQYNBTY-5.webp --- Source: https://crowcrowcrow.com/p/oura-ring-ceramic-midnight-size-sleep-activity-women-health-advisor-days-battery-life-md6847/md6847 Returns: 30 days, free, by mail. Shipping: Free across India, 7–13 business days. Prices are all-inclusive (duties + GST).