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Tom’s Guide
Tom’s Guide
Technology
Jane McGuire

Ultrahuman launches Cycle and Ovulation Pro — and they say it’s the most accurate cycle tracking on any smart ring

Ultrahuman Ring Air shown in hand.

Ultrahuman has just launched a new paid-for cycle and ovulation tracking features for the Ultrahuman Ring AIR, following its acquisition of viO HealthTech. This will sit alongside the free Cycle and Ovulation, and Pregnancy PowerPlugs on the platform.

According to Ultrahuman, this upgraded package offers users the most accurate cycle tracking on any smart ring. Let’s dive into what’s new below.

One reason many women wear one of the best smart rings is to accurately track their menstrual cycle and ovulation, using the skin temperature sensor on the ring. If you’re trying to conceive, knowing the exact few days before ovulation is essential. Your basal body temperature rises during ovulation, but if you don’t have a typical cycle, this small change can be tricky to spot.

Ultrahuman is now using algorithms designed for viO’s OvuSense fertility monitors. The brand says that this algorithm is backed by 15 years of research and is more accurate than any other smart ring. They also say the algorithm “works reliably for 87% of women who don’t have a textbook 28-day cycle — including those with PCOS or endometriosis — in tracking and understanding their cycles.”

(Image credit: Ultrahuman)

The new feature will also give women cycle flags, based on their temperature data. This can highlight hidden patterns that may be related to conditions like PCOS, or miscarriage risk, and include early or late ovulation, a short luteal phase, or the absence of ovulation during a cycle.

(Image credit: Ultrahuman)

Of course, fitness trackers cannot replace expert advice, and if you are worried about your cycle, it’s always worth speaking to your doctor. However, in some cases, the more information you have on your body and your cycle, the faster a medical professional might be able to reach a diagnosis.

If you are signing up for the more advanced cycle tracking, it is available today (August 15) and comes at a price of $3.99 per month, or $39.99 per year. Compared to some of the best smart rings on the market, one of the benefits of Ultrahuman is that it’s subscription-free; instead, the brand has paid-for ‘PowerPlugs’ you can add at a monthly cost.

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