Oura Ring Expands Into Women's Health and Becomes Official Olympic Wearable

Oura, a Finnish company that makes smart rings, has just become the official wearable for Team USA and Team Finland at the upcoming Olympic Games. At the same time, the company is pushing hard into women's health — adding features to help track periods, predict fertility, and even connect with birth control apps.

This is a significant moment for the company. Over the past 18 months, Oura has moved from basic period tracking to offering FDA-cleared birth control integration. That means the ring now connects with a medically approved app that helps prevent pregnancy.

How the Ring Works for Period Tracking

The Oura Ring has a small temperature sensor that detects tiny changes in your skin temperature throughout your cycle. After ovulation, your body temperature rises slightly — usually between 0.2 and 0.5 degrees Celsius. By wearing the ring at night, Oura collects enough data to predict when you're most fertile and when your period is likely to arrive.

Oura calls this feature Cycle Insights. It tracks which phase of your cycle you're in and gives you educational information through the Oura app on your phone.

The company went a step further by partnering with Natural Cycles, an app the FDA has approved as a form of birth control. If you're an Oura Ring member, you can try Natural Cycles free for 28 days. The ring automatically sends your temperature data to the app each morning, and the app's algorithm uses that information to identify safe and unsafe days. According to the company, this approach works 93 percent of the time with typical use, and 98 percent of the time when used perfectly.

Oura also added features for people taking hormonal birth control pills, since those don't cause regular periods. And the company created a new tool called Menopause Insights for people going through menopause.

Oura Is Not Alone in This Space

Other companies are building similar products. Competitors like Femometer Smart Ring and Evie Ring also track periods using smart rings with temperature sensors. But Oura is moving faster and adding medical features that go beyond what competitors currently offer.

The pattern here follows what we've seen before with health technology. Companies start by offering general wellness tracking — like sleep or exercise data. Then some of them add medical features that doctors actually use. Then they connect with healthcare providers and prescription services. We saw this same progression happen with glucose monitoring apps and devices, which began as consumer gadgets and grew into medical tools.

The Money and Technology Behind the Growth

Oura raised $200 million in funding in December 2024 and another $900 million in October 2025. This money has helped the company expand fast. In 2024, the company sold over 5.5 million rings, and its revenue has doubled for two years in a row.

The company released a new version of its ring in October 2024 called the Oura Ring 4, with improved sensors. It also bought Veri, a company that specializes in metabolic health, adding expertise in tracking things like blood sugar and nutrition.

There's a significant partnership worth noting here. Dexcom, a major company that makes glucose monitoring devices, invested $75 million in Oura and announced plans to work together. This suggests that Oura's rings might eventually track glucose levels too, not just temperature and sleep.

Building an Ecosystem of Health Partners

Oura has been connecting with other health companies and apps. Beyond Natural Cycles, Oura now works with Twentyeight Health, which can connect you with doctors who prescribe birth control. The company also partnered with Maven Clinic, Midi Health, and other telehealth services focused on women's health.

In March 2025, Oura launched a new AI tool called Oura Advisor. Think of it as a personal health assistant powered by artificial intelligence. It learns from all the data your ring collects — your sleep, activity, stress, and reproductive health patterns — and gives you personalized suggestions.

The company is also selling its rings in retail stores. Oura reached a partnership with John Lewis in the UK, making the rings available in 34 physical stores.

Olympic Endorsement and Legal Protection

The Olympic partnerships signal that Oura's technology is being trusted by elite athletes. Team USA and Team Finland will use the rings to monitor performance and recovery. This is an important endorsement for a company that started in the consumer health space.

On the legal front, Oura won a patent case in September 2025 against competitors Ultrahuman and RingConn. This protects Oura's core technology and makes it harder for other companies to copy its ring design.

What This Moment Means

The fact that Oura now has FDA-cleared birth control integration is new territory for wearable technology. Until now, smartwatches and fitness trackers have mostly been wellness gadgets — helpful for tracking sleep or steps, but not medical devices. Oura is crossing that line, and regulators are allowing it because the technology works and has been tested.

This opens a broader shift happening in health technology. Devices you wear are becoming more medically capable, and they're being woven into actual healthcare — connecting you with real doctors and approved treatment options. It's a natural next step, and other companies will likely follow Oura's path in coming years.