Indian smart wearables company Ultrahuman is making cycle and ovulation tracking available free to users of its Ring Air device.

Using biomarker technology, it is said to provide a more accurate and user-friendly approach to fertility tracking, eliminating the need for outdated methods or accompanying costly subscriptions.

Ultrahuman has also witnessed growth in market share, surging from 10% just a few months ago to 30% by November 2024. This trajectory positions the company to surpass its goal of becoming the leading smart ring provider within 18 months.

“Sleep health is at a transformative juncture, and Ultrahuman is proud to be at the forefront as one of the world’s fastest-growing health monitoring platforms,” said Mohit Kumar, CEO of Ultrahuman (www.ultrahuman.com). “We’ve redefined the category by uncovering deeper insights into sleep and its broader implications for health. By leveraging sleep data, we pioneered the world’s first AFib detection technology on a smart ring and introduced a seamless ovulation tracking feature for women, eliminating the hassle of double subscriptions.”

Women can track their ovulation window seamlessly with the Ring Air and its companion app. Unlike traditional methods that rely on basal body temperature (BBT), Ultrahuman’s algorithms incorporate multiple biomarkers that include skin temperature, resting heart rate (RHR) and heart rate variability (HRV), providing users with a holistic, data-driven approach to understanding their cycles.

“Most fertility tracking today is either inconvenient, expensive or both,” said Kumar. “Women often have to use two apps, pay for two subscriptions, and even purchase separate devices just to track their fertility. We’re changing that. Ultrahuman’s fertility tracking is built natively into the same Ring Air that already tracks your health, and we’re offering this service completely free. There’s no pink tax here, just evidence-backed insights to help women make informed decisions about their reproductive health.”

With just the Ring Air and its companion app, women no longer need to juggle multiple apps or pay for additional subscriptions to track their fertility. Everything is integrated into one platform, making the process user-friendly and intuitive.

Fertility tracking offers two initial goals: cycle tracking and conception. Ultrahuman’s ovulation tracking provides real-time insights and predictive capabilities that go beyond traditional methods.

Existing methods for conception planning are tedious and not the most accurate. The calendar method is based on the premise of regular cycles, which is often not the case. The BBT method is quite cumbersome, and not the most accurate if one isn’t regular with tracking or cycle.

Ovulation predictor kit (OPK) methods provide a narrow 24 to 36 hour window with which to work, which might not be ideal for conception planning.

Rather than relying solely on body temperature, the Ring Air technology tracks multiple physiological biomarkers, such as skin temperature, heart rate variability and resting heart rate. Additionally, the algorithm incorporates multiple stratifiers, including age, BMI, skin perfusion and diurnal stress, after studying 41,475 anonymised cycles. This accounts for natural variability among regular cycle patterns.

“This is crucial because a single marker can vary, but the combined output of multiple markers reduces drift and boosts accuracy,” said Aditi Bhattacharya, scientific director at Ultrahuman. “This has been fundamental to advanced clinical biomarker testing and has inspired us to integrate a similar multi-marker system into our wearable technology. By capturing a range of fertility signals, we provide a far more accurate and comprehensive picture than methods relying on just one factor.”

Many modern fertility trackers come with hidden fees, requiring extra subscriptions or additional devices and apps. With Ultrahuman, fertility tracking is included with every Ring Air as a free PowerPlug, making it accessible to all users without the burden of extra costs. PowerPlug is a platform for individual apps and plugins built on top of the health and wellness data stack.

With the Ring Air (www.ultrahuman.com/ring), women can track their ovulation with ease and confidence, giving them more clarity and control over their health, without the complexity of traditional methods or paying a subscription fee for multiple applications.