The next wave of wearables wants to read your hormones

By now you know the story. You're wiped out, brain-fogged, wide-awake at 2am, and completely wiped out at midday. Then, somewhere along the line a blood test tells you all the numbers look good. Unfortunately for many women, having good lab results doesn't mean you're feeling good about yourself either. Your body didn't stop talking. It’s just nobody listened hard enough or long enough to understand what it was trying to tell them.

That's beginning to change. Hormonal health is now the fastest-growing corner of femtech, and a cluster of new brands are treating your hormones not as a once-a-year snapshot but as a living signal worth following. Three of them, Clair, Embr and Enya, show you the shape of where this is heading.

Hormones are wellness tech's hardest problem

Most tracking you already do is relatively easy for a device to read. Steps, heart rate, sleep, all of it sits close to the surface. Hormones don't. Traditionally the only way to know your oestrogen or progesterone was a blood, saliva or urine sample, which gives you a single number from a single moment in a system that shifts by the hour. 

The result is a patchwork. Right now most women run three separate workflows to see one picture: a calendar app for their cycle, at-home urine sticks for hormones, and a fitness wearable for everything else. None of them talk to each other, and none of them tell you what's happening today. The whole race in women's health tech is to close that gap, and to do it without a needle. 

Clair reads your hormones without a blood test

Clair is the clearest glimpse of the continuous future. It's a wrist-worn wearable that reads signals your body is already broadcasting, skin temperature, heart rate, breathing, sleep, and uses AI to estimate oestrogen, progesterone, LH and FSH in real time. The pitch is passive: you wear it, and the data arrives without you testing for anything. 

Founded by two Stanford graduates, Clair has raised 11.6 million dollars and has more than 25,000 women on its waitlist ahead of a late-2026 launch. The credibility signal that matters most, given how much noise this category attracts, is that Clair says its device was validated against FDA-registered at-home hormone tests, with early research presented at a peer-reviewed women's health conference. It's also built privacy-first, with the models running on your own phone so your data stays on your device. You can join the waitlist at wearclair.com. 

Embr,  a thermostat for your wrist

Not every answer is about measurement. Some are about relief in the moment, which is where Embr's Wave 2 comes in. It's a slim, watch-like band worn on the inside of the wrist that sends waves of cooling or warming to the temperature-sensitive nerves there, easing a hot flush or helping to settle you towards sleep. 

The clever part is that it works in rhythmic waves rather than constant cold, because the brain tunes out static temperature but stays alert to change. Worth being honest about what it is and isn't: a device like this won't stop a hot flush from happening, but it can genuinely soften how severe one feels.You'll find it at embrlabs.com.

Enya, 121 doctor support

The third piece adds an additional layer of support from qualified doctors. Data and relief are only useful if someone helps you act on them, and this is the layer wearables can't replace. Enya is doctor-led perimenopause and menopause care app, built for the woman who's been told everything looks normal and still knows something's off, with a plan that can include hormone therapy when it's medically right for her. 

It's a reminder that the goal was never more numbers for their own sake. It's answers, and care that adjusts as your body does. You can find out more at enya-health.com.

What accuracy really means here

A continuous monitor doesn't hand you data the way a blood test does. It infers your hormones from the physiological signals around them. It still has to prove that inference holds up clinically. A relief band changes how a symptom feels, not the hormone underneath it. A good doctor interprets the whole picture. 

So the real shift isn't from inaccurate to accurate. It's from a single blurred snapshot to something continuous, contextual and, finally, taken seriously. That's the version of accuracy worth wanting, the kind that treats your body as a conversation rather than a one-off test.