Ultrahuman smart ring launches subscription-free ovulation tracking
The fertility tracker uses multi-biomarker based ovulation prediction
Smart ring maker Ultrahuman has announced the launch of its new ‘Cycle and Ovulation PowerPlus’ - available free for all of its Ultrahuman Ring AIR users.
Unlike traditional methods for fertility tracking that rely solely on basal body temperature (BBT), Ultrahuman's algorithms incorporate multiple biomarkers that include skin temperature, resting heart rate (RHR), and heart rate variability (HRV). This allows women to track their ovulation window using the Ultrahuman Ring AIR and its companion app.
Mohit Kumar, Founder and CEO of Ultrahuman said:
“Most fertility tracking today is either inconvenient, expensive, or both. 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.”
As well as the biomarkers, the Ultrahuman algorithm also incorporate stratifiers such as age, BMI, skin perfusion and diurnal stress after studying 41,475 anonymised cycles. This accounts for natural variability among regular cycle patterns.
Aditi Bhattacharya, Scientific Director at Ultrahuman, said:
“This is crucial because a single marker can vary, but the combined output of multiple markers reduces drift and boosts accuracy. 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.”
Outpacing competitors
In women’s health the smart ring competition has been hotting up in 2024. Oura ring is category leader and has announced a raft of new women’s health features during the year. Elsewhere, Movano Health’s Evie Ring’s highly-anticipated launch was dampened after poor customer feedback led to suspended sales.
Things may be changing still. India-based Ultrahuman, which secured $35 million in Series B funding earlier this year, has begun to witness large growth in market share, surging from 10% just a few months ago to - it says - 30% by November 2024. It now aims to become the leading smart ring provider within 18 months.
Mohit continued:
“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. 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.”