The Oura Ring 4 has established itself as the gold standard in the smart ring market. Since its global debut, it has become the go-to wearable for anyone serious about tracking sleep, recovery, and overall wellness. In 2026, the device has expanded into new markets and received a stunning ceramic makeover. Like The Serpent Queen’s Catherine de Medici, who was a master strategist, Oura has carefully planned its expansion into India and beyond. Here is your complete guide to the Oura Ring 4.
Oura Ring 4 India Launch: Price and Availability
In a major move, Oura officially launched its flagship smart ring in India in March 2026. The company is banking on the country’s growing health-conscious population. Oura also released a report revealing that India is among the shortest‑sleeping populations in its global dataset [citation:7].
The Oura Ring 4 is priced starting at Rs 28,900 for the Black and Silver colour options. The premium finishes—Stealth, Brushed Silver, Gold, and Rose Gold—cost Rs 39,900 [citation:2][citation:3]. The ring is available in 12 sizes, ranging from 4 to 15 [citation:2].
However, the upfront cost is not the only expense. Like a historical drama’s layered narrative, Oura’s pricing has multiple levels. The ring requires a monthly membership of Rs 599 to unlock full app access and detailed health insights [citation:2][citation:7]. The device is available for purchase online on Amazon India and at over 100 Croma retail stores across the country from 18 March 2026 [citation:2][citation:7].
Oura Ring 4 Ceramic: A Scratch-Resistant Revolution
In late 2025, Oura announced the Oura Ring 4 Ceramic collection, its first lineup that does not feature metallic finishes. Made from high-performance zirconia ceramic, these rings are designed to be more durable and expressive [citation:1][citation:10].
The ceramic material has a Mohs hardness rating of 8.5, meaning it is harder than steel and approaches the durability of sapphire [citation:5]. The color comes from natural minerals within the ceramic itself, ensuring it stays vibrant and doesn’t fade over time [citation:1].
The collection comes in four unique Lemur: The Unique Primate Native to Madagascar and Why It Matters Todayshades: Tide (pastel blue-green), Cloud (creamy off-white), Petal (blush pink), and Midnight (metallic black) [citation:5].
The ceramic ring is priced at $499 / £499 – significantly higher than the standard model’s starting price of $349 / £349 [citation:4][citation:9]. It also comes with a special Polishing Pad to wipe off scuffs that may be caused by contact with softer metals found in cookware or dumbbells [citation:1].
The ring itself is slightly thicker and heavier than the standard version (3.51mm vs 2.88mm) [citation:10].
Oura Ring 4 Features and Smart Sensing Technology
At the heart of the Oura Ring 4 is its Smart Sensing technology. Unlike the third-generation ring, which had eight signal pathways, the Ring 4 uses an 18-path multi-wavelength photoplethysmography (PPG) subsystem [citation:2][citation:8].
This hardware upgrade allows for more accurate data capture with fewer gaps. The ring continuously tracks biometric data, including resting heart rate, heart rate variability (HRV), sleep stages, temperature trends, and more [citation:2].
The ring uses red and infrared LEDs to measure blood oxygen levels during sleep, while green and infrared LEDs track heart rate and HRV [citation:2]. An accelerometer tracks movement and activity, and a digital temperature sensor monitors changes in body temperature [citation:2].
The device is water-resistant up to 100 meters and weighs between 3.3g and 5.2g, depending on the size [citation:2].
Oura Ring 4 vs Oura Ring 3: Key Differences
The Oura Ring 3 is now discontinued and hard to find new, but many used models are available. However, the upgrade to the Ring 4 is unique for several reasons [citation:4].
Comfort: The most notable difference is the comfort. The raised sensor domes that stuck out on the Ring 3’s interior have been flattened and recede into the ring. This eliminates the annoying dents that the Ring 3 left on your finger [citation:8].
Sizing: The Ring 4 offers expanded sizing, ranging from size 4 to 15, compared to the Ring 3’s size 6 to 13 [citation:8].
Battery Life: In real-world testing, the Ring 4 consistently achieves around five days of battery life, compared to the Ring 3’s two to three days [citation:4].
Software: Most software updates—including automatic heart rate monitoring, the redesigned Oura app, and upgraded daytime stress features—are available on both the Ring 4 and Ring 3 [citation:8].
Oura App: The New Oura Advisor and Health Panels
The Oura app has received significant updates alongside the Ring 4 hardware. The app is now organised into three main tabs: Today, Vitals, and My Health [citation:9]. It also includes meal tracking, allowing users to take a photo of their meal so AI can detect the food items and deliver an overview of its nutritional content [citation:4].
In September 2025, Oura also introduced Health Panels, a feature that lets members schedule blood work directly in the Oura app. Members can book a blood test at over 2,000 Quest Diagnostics labs across the US for $99 [citation:1].
The results come straight to the Oura app. The Oura Advisor, an AI tool, interprets the data and helps isolate meaningful takeaways, answering questions like “What does my A1C of 5.7% mean?” [citation:1]
Oura Ring 4 Charging Case and Accessories
Oura has also introduced a new portable charging case for the Ring 4. Created in response to members asking for a way to charge their ring while on the go, the case stores up to five full ring charges and works with a USB-C cord .
The charging case costs $99 / £99The standard charging puck will charge the Ring 4 from flat to 100% in just under an hour and a half .
Why the Oura Ring 4 Is Trending in 2026
The Oura Ring 4 continues to dominate the smart ring conversation for several reasons. The India launch has opened up a massive new market. The Ceramic collection offers a fashionable yet durable alternative to metal finishes. The Health Panels feature bridges the gap between consumer wearables and clinical lab testing. Additionally, the significant comfort improvements over the Ring 3 make it more appealing for 24/7 wear.
From tracking sleep to monitoring stress, the Oura Ring 4 remains the smart ring to beat.
Frequently Asked Questions (FAQs)
How much is the Oura Ring 4?
The standard Oura Ring 4 starts at $349 / £349. The Ceramic collection costs $499 / £499 [citation:4][citation:9]. In India, prices start at Rs 28,900 [citation:2].
Does Oura Ring 4 have a subscription?
Yes. You need a monthly membership ($5.99 / Rs 599 per month) to access full app features and detailed health insights [citation:1][citation:2].
What is Oura Ring 4 battery life?
Oura claims 8 days of battery life, but real-world testing shows around 5-6 days for average users [citation:4][citation:9].
Is Oura Ring 4 worth it?
Yes, if you are serious about tracking sleep, recovery, and stress. It is the most accurate and comfortable smart ring on the market [citation:8][citation:9].
Is Oura Ring 4 waterproof?
Yes. It has a water resistance rating of 100 meters, making it suitable for swimming and showering [citation:2].
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