
Ultrahuman’s deal lands as the race in women’s health wearables intensifies, with Incora’s smart earrings also on the horizon
Women’s health wearables are in a fast-moving race, and Ultrahuman just made its move, acquiring women’s health tech company viO HealthTech to add a Ring AIR feature that it says confirms ovulation with over 90% accuracy.
The result is Cycle & Ovulation Pro, a new subscription add-on priced at $3.99 a month or $39.99 a year. It adapts viO’s OvuSense fertility tracking technology (developed over 15 years and trained on more than 260,000 cycles) to account for the wide range of cycle patterns women experience, including those with PCOS, endometriosis or thyroid disorders. The feature is available to Ring AIR users in the U.S., UK, EU, Australia and Canada, with other regions to follow.
Terms of the deal were not disclosed.
“This collaboration benefits from 15 years of clinically proven women’s health expertise and applies it to the world’s lightest smart ring,” Ultrahuman CEO Mohit Kumar said. “For the first time, best-in-class hardware, software and algorithms with a clinical background come together in one wellness device. Our mission is to give women cutting-edge tools to optimize their health, combining clinical technology with comfort and style to deliver the most accurate women’s health tool available.”

Cycle & Ovulation Pro utilizes temperature data from the ring to provide personalized insights, detect hidden patterns and flag potential issues, such as early or late ovulation, a short luteal phase or the absence of ovulation. Users can also log symptoms, moods and lifestyle factors to see how they correlate with different phases, building a longer-term view of wellness trends.
“Wearables will shape the future of health,” viO HealthTech CEO Rob Milnes said. “We’re delighted to be able to bring OvuSense women’s health insights to a significantly wider audience via the Ultrahuman Ring AIR.”
The launch comes as competition in the smart ring market intensifies, particularly in the women’s health sector. Earlier this week, rival Oura introduced a redesigned Pregnancy Insights experience, along with its first perimenopause feature, expanding its suite of reproductive health offerings. That push also includes Oura’s recent partnership with Maven Clinic, a virtual clinic for women’s and family health. The integration lets eligible Maven members sync Oura Ring biometric data, including sleep, stress, activity and cycle patterns, with the platform.
Elsewhere in the space, Movano Health expanded the capabilities of its subscription-free $269 Evie Ring, a smart ring designed specifically for women, adding app features that integrate with Apple Health, track multi-day wellness trends and include tools such as daily basal body temperature logging and heart rate mapping.
Rings aren’t the only jewelry getting a tech upgrade. South Carolina–based Incora Health is preparing to launch smartearrings. Plated in 18-karat gold over titanium and safe for sensitive ears, the earrings track metrics such as basal body temperature, heart rate variability, sleep and activity, and then run them through AI models reviewed by medical professionals to deliver guidance aligned with each wearer’s unique menstrual cycle. Incora Health is currently building a waitlist ahead of its debut.