# OURA Ring 4 Silver Size 13 Smart Ring | Accurate Sleep & Health Tracking **Brand:** OURA **SKU:** mk3634 **ASIN:** B0D9WWHXHD **Canonical URL:** https://crowcrowcrow.com/p/oura-ring-silver-size-sleep-activity-women-health-advisor-days-battery-life-before-buy/mk3634 **Category:** electronics **Subcategory:** Wearable Technology **Availability:** in_stock **Price (INR, all-inclusive):** ₹28,804 **Discount:** 19% **Customer rating:** 4.83/5 from 6 ratings ## Description The OURA Ring 4 in Silver, Size 13, offers advanced health tracking with Smart Sensing. Monitor sleep, activity, heart health, and women's health with up to 8 days of battery life. Android & iOS compatible. Imported directly from USA retailers, all duties included, arrives {{ccc_delivery_eta}}. ## Highlights - Accurate Sleep & Health Metrics — Tracks over 50 health metrics including sleep stages, HRV, body temperature, and respiratory rate with Smart Sensing technology for precise, continuous data. - Comfortable All-Day Wear — Durable, all-titanium design is lightweight and comfortable for 24/7 wear, including sleep, with no screens or vibrations to disturb you. - Extended Battery Life — Enjoy up to 8 days of battery life on a single charge, allowing for uninterrupted tracking and fewer charging interruptions. - Women's Health Tracking — Monitors menstrual cycles and identifies patterns, providing insights into hormonal changes and their impact on your body. ## 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 - The OURA Ring 4 provides deep insights into your sleep, readiness, and overall health, adapting to your unique body signals. Unlike bulky smartwatches, its sleek, all-titanium design ensures comfort for 24/7 wear, including during sleep. The Smart Sensing platform delivers accurate data on over 50 metrics, from heart rate variability to metabolic health and women's cycle tracking. With up to 8 days of battery life, you can focus on your well-being without constant charging. This USA-imported model ensures you receive the same authentic product trusted by users worldwide, with all customs duties and GST pre-paid for a transparent purchase. — Advanced Health Insights, Discreetly - This ring is perfect for individuals seeking a comprehensive understanding of their sleep, recovery, and daily activity without the distraction of a screen. It's particularly beneficial for women tracking their cycles and for anyone wanting to optimize their daily readiness. However, if your primary focus is intense, real-time sports performance tracking with detailed metrics, or if you prefer a device with a display and vibration alerts, a dedicated sports smartwatch might be a better fit. Those sensitive to small light sensors during sleep might also consider alternative placement strategies. — Ideal for Holistic Wellness Seekers ## How to use 1. Before purchasing, use the OURA Ring 4 Sizing Kit to accurately measure your finger. Select the size that fits snugly but comfortably, ensuring the sensors maintain skin contact for optimal data collection. — Find Your Perfect Fit 2. Download the OURA App on your Android or iOS device. Create an account and sync your OURA Ring 4 via Bluetooth. Follow the in-app prompts to complete setup and activate your membership. — Download and Sync the App 3. Wear the ring continuously, day and night, for comprehensive tracking. Charge the ring as needed, typically every 5-8 days, using the provided charger. — Wear and Monitor Daily ## Product details | Field | Value | |---|---| | Sensors | Infrared LEDs, Green LEDs, Temperature Sensors, Accelerometer | | Membership Required | Yes (first month included, then {{ccc_offer_price}}) | | HSA/FSA Eligible | Yes (Ring, Charger, Shipping) | | Directions | Wear on finger, sync with Oura App daily. Charge as needed. | | Reapplication Math | Up to 8 days battery life per charge. | | Contraindications | May not be ideal for intense weightlifting due to bulk; light sensors may affect very light sleepers. | | Allergens / Common Irritants | Stainless steel coating may be a concern for extreme sensitivities. | | Brand | OURA | | Model | JZ90-54217-13 | | Color | Silver | | Size | 13 (USA) | | Material | All-Titanium | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | | Compatibility | Android & iOS | | Battery Life | Up to 8 days | | Water Resistance | Up to 100m | ## Attributes - **Unit count:** 1 ## Frequently asked questions ### How is this OURA Ring 4 authentic vs the version sold in Indian stores? This OURA Ring 4 is sourced directly from authorized US retailers like Amazon.com and Walmart, ensuring it's factory-sealed and identical to what US consumers receive. All customs duties and GST are pre-paid and included in the listed INR price, with delivery typically within {{ccc_delivery_eta}} via ExpressBox tracked shipping. ### Will the version I receive match what is shown on the US retailer's page? Yes, your order is placed against the specific US retailer's listing at the time of purchase. The batch codes, packaging, and labels will match what the US retailer dispatches. We take photographs of every order before international handover for your verification. ### Is OURA Ring 4 safe? Yes, the OURA Ring 4 is designed for safe, continuous wear. It uses non-invasive sensors and has been tested for durability. It is generally considered safe for tracking health metrics, including sleep and activity, with no reported adverse health effects from its use. ### Are OURA Ring 4 healthy? Yes, the OURA Ring 4 is designed to promote health by providing insights into sleep, activity, stress, and women's health. By tracking these metrics, it helps users understand their body's signals and make informed lifestyle choices to improve overall well-being. ### How to choose OURA Ring 4? Choose the OURA Ring 4 based on your desired health insights, battery life needs, and preferred style. Ensure you use the OURA Ring 4 Sizing Kit to find your perfect fit before purchasing, as sizing differs from standard jewelry. ### How to use OURA Ring 4? Wear the OURA Ring 4 on your finger, ensuring the sensors are in contact with your skin. Download the Oura App on your Android or iOS device, create an account, and sync the ring via Bluetooth. The app will guide you through setup and data interpretation. ### What is the best OURA Ring 4? The 'best' OURA Ring 4 depends on your needs. The OURA Ring 4 offers advanced Smart Sensing for sleep, activity, and health metrics. Ensure you select the correct size using the provided kit for optimal accuracy and comfort. ### Can I use OURA Ring 4 daily? Yes, the OURA Ring 4 is designed for daily, 24/7 wear, including during sleep and workouts. Its durable, waterproof design and long battery life make it suitable for continuous use, providing consistent health data. ### OURA Ring 4 side effects? There are generally no significant side effects associated with wearing the OURA Ring 4. Some users might find the light sensors disruptive in very dark rooms, or the bulk noticeable during intense weightlifting, but these are minor considerations for most. ### OURA Ring 4 benefits? Benefits include accurate tracking of sleep stages, readiness, activity, heart health, stress, and women's health. It helps users understand their body's patterns, improve sleep quality, and make informed lifestyle choices for better 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/B0D9WWHXHD-0.webp 2. https://images.crowcrowcrow.com/B0D9WWHXHD-1.webp 3. https://images.crowcrowcrow.com/B0D9WWHXHD-2.webp 4. https://images.crowcrowcrow.com/B0D9WWHXHD-3.webp 5. https://images.crowcrowcrow.com/B0D9WWHXHD-4.webp 6. https://images.crowcrowcrow.com/B0D9WWHXHD-5.webp --- Source: https://crowcrowcrow.com/p/oura-ring-silver-size-sleep-activity-women-health-advisor-days-battery-life-before-buy/mk3634 Returns: 30 days, free, by mail. Shipping: Free across India, 7–13 business days. Prices are all-inclusive (duties + GST).