Oura’s smallest ring to date has hit the market — and just in time, with its SEC confidential submission of a proposal filing last week for an IPO.
On Thursday, the Finnish health-tracking company released its Oura Ring 5 with an even thinner look than previous generations, 40 percent smaller than its previous edition.
Culminating the past 12 years of innovation since the company’s founding and now surpassing more than 5 million global users, Oura has launched Ring 5, starting at $399, with both new hardware and software, new app updates and the introduction of a new wireless charging case, $99. The ring is available for pre-order from Thursday and ships out June 4, available in black, silver, brushed silver, deep rose, gold and Stealth hues.
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“Oura Ring 5 is a big step toward our vision of giving everybody a voice,” said Tom Hale, chief executive officer at Oura, in a statement. “By reimagining Oura Ring 5 to be smaller, easier to wear and pairing it with our most advanced software yet, we’re making it possible for many more people to wear Oura every day — and to benefit from the personalized, predictive health insights that come with it.”
Notably, the consumer feedback has continued to overwhelmingly ask for a smaller and lighter ring. With this launch, Holly Shelton, chief product officer, told WWD in an interview that it opens the door for consumers to “comfortably wear their Oura Ring 5 24/7.”
Shelton shared that the goal with Oura Ring 5 was to “create the most wearable smart ring on the planet,” but emphasized that “wearability couldn’t come at the cost of performance.” The company also approached the new ring as a “piece of jewelry … to wear every day” with the experience being more similar to fine jewelry than other wearable tech products.
Hence, the expanded finishes of the rings available in a newly introduced lighter gold shade alongside deep rose, with its copper-rose finish — enabling people to choose a color that fits their personal style.
Oura has also introduced a new battery design for the ring to ensure a full week of battery life for continuous health, as well as being durable, scratch-resistant, and waterproof up to 100 meters.
“The result is a ring that feels more elegant, more comfortable, and easier to style with a person’s existing jewelry and everyday aesthetic — while still delivering the advanced health insights people expect from Oura. [This launch] is especially important as we expand to a broader audience, including people who want meaningful health insights but may have felt hesitant in the past because wearable technology can seem bulky or too technical.”
Notable new updates include a reworked architecture that uses precision-engineered, low-profile sensor domes for better skin contact, more powerful LEDs for consistent readings, and 12 stronger signal pathways in the finger for accuracy across different types of fingers and skin tones.
Updates on the Oura app experience include the unveiling of live activity tracking, including low-motion fitness like Pilates, health radar, blood pressure monitoring, nighttime breathing, health records, GLP-1 insights, a brain health study in partnership with Cambridge Cognition and more.
Oura is also focused on connected care with the partners to turn health insights into action — in partnership with Counsel Health to create on-demand care with its Oura Advisor, with its proprietary AI model focused on women’s health.
According to Shelton, this tech development and release is in response to the growing consumer demand for wearables that are more natural — “we’re giving people a ring they never have to take off — and never want to.”
“At the core of this launch is a simple idea: health technology should fit naturally into people’s lives, not ask people to adapt to it. That means pairing a design people genuinely want to wear with empathetic guidance that meets members where they are and helps them make more informed decisions day to day, not just when something is wrong. This launch also comes at an exciting moment of growth for the company as we continue expanding our global member base, our healthcare partnerships and the overall role Oura can play in the future of consumer health,” said Shelton.
This news follows the company’s recent confidential filing to the SEC for an IPO, with a $11 billion valuation following its October 2025 Series E funding round of $900 million led by Fidelity Management & Research Company, with participation from new investor ICONIQ and contributions from Whale Rock and Atreides. Oura has seen 100 percent year-over-year growth from 2024 to 2025 and reportedly was on track in September 2025 to hit more than $1 billion in sales.