# Oura Ring 4 Ceramic Midnight Size 15 | Smart Ring for Sleep, Activity & Women's Health **Brand:** OURA **SKU:** dj1289 **ASIN:** B0FKR2HSN9 **Canonical URL:** https://crowcrowcrow.com/p/oura-ring-ceramic-midnight-size-sleep-activity-women-health-advisor-days-battery-life-dj1289/dj1289 **Category:** electronics **Subcategory:** Wearable Technology **Availability:** in_stock **Price (INR, all-inclusive):** ₹56,424 **Discount:** 17% **Customer rating:** 4.10/5 from 10 ratings ## Description Oura Ring 4 Ceramic Midnight (Size 15) offers advanced sleep, activity, and women's health tracking with Smart Sensing. Enjoy up to 8 days of battery life and a comfortable, high-end ceramic design. Imported from USA, duties included, arrives in {{ccc_delivery_eta}}. ## Highlights - 8-Day 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. - Comfortable & Durable Ceramic — The high-performance ceramic exterior is designed for everyday wear, blending elegance with durability. It feels lightweight and comfortable, even during sleep. - Actionable Health Insights — Track over 50 metrics including sleep, activity, stress, and women's health. Smart Sensing adapts to you, delivering accurate data and personalized insights via an intuitive app. - Discreet Alternative to Smartwatches — Monitor key health metrics without screen distractions or vibrations. Ideal for those seeking to disconnect while staying informed about their body's signals. ## 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 Tracking with Smart Sensing — Oura Ring 4 Ceramic utilizes breakthrough Smart Sensing technology, adapting to your finger to deliver accurate, continuous data on over 50 health metrics. This includes detailed sleep stage analysis, readiness scores, activity levels, stress monitoring, heart health, and specific women's health insights. Unlike basic fitness trackers, Oura provides a holistic view of your body's signals, helping you understand recovery and optimize your daily performance. The design is sleek, comfortable, and built for 24/7 wear, making it a seamless addition to your routine. Imported directly from authorized US retailers, this ensures you receive the authentic product with the latest technology. - Who It's For vs. Who Should Skip It — This ring is ideal for health-conscious individuals, busy professionals, and women seeking deeper insights into their sleep, recovery, and overall well-being. If you want to understand how your daily habits impact your body without the distraction of a smartwatch screen, Oura is an excellent choice. It's also great for those who appreciate elegant, minimalist tech. However, if you require real-time notifications, GPS tracking, or extensive app integrations like a smartwatch, this ring may not meet those needs. Those sensitive to metal transfers on ceramic surfaces should also exercise caution or consider alternative materials. ## How to use 1. Use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing. Ensure the ring is snug but comfortable on your finger for accurate sensor readings. — Size Your Ring 2. Wear the ring 24/7, including during sleep and daily activities. The recessed sensors on the inside are designed for comfort and continuous data collection. — Wear Continuously 3. Sync your ring daily with the Oura App on your smartphone via Bluetooth. This transfers your health data, allowing you to view sleep, activity, and readiness insights. — Sync with Oura App 4. Check the app regularly to understand your trends, readiness scores, and personalized recommendations. Use this data to optimize your sleep, activity, and overall well-being. — Review Your Insights ## Product details | Field | Value | |---|---| | Smart Sensing Technology | Proprietary sensor array | | Health Metrics Tracked | >50 (Sleep, Activity, Readiness, Stress, Heart Health, Women's Health) | | Allergens | Recessed sensors, designed for sensitive skin | | Directions | Wear on finger, sync with Oura App daily. | | Recommended Use | Continuous wear for comprehensive health tracking. | | Cost per use | Calculated based on {{ccc_offer_price}} and ring lifespan. | | Shelf life after opening | N/A (Durable electronic device) | | Reapplication math | N/A (Durable electronic device) | | Contraindications | May show color transfer from metal objects; consider removing during heavy metal handling. | | Allergens / common irritants | Designed for sensitive skin; consult manufacturer for specific material details. | | Brand | Oura | | Model | JZ90-57455-15 | | Color | Midnight Ceramic | | Size | 15 (US Standard) | | Material | High-performance Ceramic Exterior | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | | Battery Life | Up to 8 days | | Connectivity | Bluetooth | | App Compatibility | Android & iOS | ## Attributes - **Unit count:** 1 ## Frequently asked questions ### How is this Oura Ring 4 authentic vs the version sold in Indian stores? Sourced directly from authorized US retailers, factory-sealed, and imported per-order. You receive the authentic product with the latest technology, matching what US buyers get. All customs duties and GST are included in the displayed price. Arrives via ExpressBox tracked shipping within {{ccc_delivery_eta}}. ### Will the Oura Ring 4 I receive match what is shown on 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 to wear daily? Yes, the Oura Ring 4 is designed for comfortable, continuous wear with recessed sensors gentle on sensitive skin. It tracks your health metrics passively without constant interruptions or vibrations. ### What are the benefits of the Oura Ring 4? It provides accurate tracking of over 50 health metrics, including sleep, activity, readiness, stress, heart health, and women's health. Users report gaining meaningful, actionable insights into their well-being and daily habits. ### How to choose the correct size for Oura Ring 4? Oura Ring 4 uses unique sizing different from standard jewelry. It is essential to use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing to ensure the best experience and accurate data. ### How to use the Oura Ring 4? Wear the ring on your finger, ensuring the sensors are on the palm side. Sync it daily with the Oura App on your smartphone to view your health data and insights. ### What is the best Oura Ring 4? The Oura Ring 4 Ceramic Midnight in Size 15 offers advanced health tracking with a durable, elegant design and up to 8 days of battery life. It provides comprehensive sleep, activity, and women's health insights. ### Can I use Oura Ring 4 daily? Yes, the Oura Ring 4 is designed for 24/7 wear, including during sleep and daily activities. Its comfortable design and long battery life make it suitable for constant use. ### What are Oura Ring 4 side effects? The ring is designed with recessed sensors for comfort on sensitive skin. Some users note potential color transfer from metal objects onto the ceramic finish, which is cosmetic and removable with cleaning. ### What are the Oura Ring 4 benefits? Key benefits include detailed sleep stage analysis, readiness scores, activity tracking, stress monitoring, and women's health insights, all presented through an intuitive app for actionable understanding of your health. ## Compliance {"voltage_compatibility":"Requires 100-240V charging adapter (not included). Use a compatible adapter for India's 220V standard.","warranty_geography":"USA manufacturer warranty applies. CrowCrowCrow covers transit damage or incorrect item.","usage_warning":"Ceramic finish may show cosmetic color transfer from metal objects; handle with care or remove during heavy metal activities."} ## Images 1. https://images.crowcrowcrow.com/B0FKR2HSN9-0.webp 2. https://images.crowcrowcrow.com/B0FKR2HSN9-1.webp 3. https://images.crowcrowcrow.com/B0FKR2HSN9-2.webp 4. https://images.crowcrowcrow.com/B0FKR2HSN9-3.webp 5. https://images.crowcrowcrow.com/B0FKR2HSN9-4.webp 6. https://images.crowcrowcrow.com/B0FKR2HSN9-5.webp --- Source: https://crowcrowcrow.com/p/oura-ring-ceramic-midnight-size-sleep-activity-women-health-advisor-days-battery-life-dj1289/dj1289 Returns: 30 days, free, by mail. Shipping: Free across India, 7–13 business days. Prices are all-inclusive (duties + GST).