Let me say something that might annoy a few founders. If your big idea is another period-tracking app, I'm already tired. Seriously, if you were here, you could see me yawning behind the screen.

I get why it keeps happening. Tracking is where femtech started, and it did real good. A lot of us finally had a rough idea of when our period was showing up and stopped getting caught off guard in the middle of a work meeting. But the industry has been circling that one idea for years while much bigger problems sit untouched. So here's where I think the next breakthrough is coming from. None of it looks like a calendar with a little red dot on it.

What Period Trackers Actually Gave Us

Credit where it's due. Tracking apps made cycles something people could talk about. Before them, plenty of women had no clue what a normal cycle even looked like, and brushed off things they probably shouldn't have. Apps gave us a baseline, and that mattered.

The catch is that a baseline only helps if something happens after it. You log your cramps, your mood, your sleep. The app tells you your period is due Thursday. Cool, thanks, I could have guessed that.

All that data piles up and mostly just sits there. I think the next big thing in femtech is whoever figures out what to do with it, so a doctor can actually use it in an appointment.

Diagnosis Is the Biggest Gap

Take endometriosis. It's common, it hurts, and getting diagnosed is a nightmare. A scoping review of diagnostic delay, published in Health Care for Women International in 2024, found that women wait 6.8 years on average for a diagnosis, and that the average ranges from 1.5 years to 11.4 years depending on the country. The authors also note that a correct diagnosis can take at least seven visits to a health practitioner. Seven visits. I'd bet plenty of those end with somebody saying it's just bad cramps.

The review also found the longest delays happen in secondary care. And in the one study that compared the two, people using public healthcare waited longer than people going private. Access matters a lot here. Someone who can't afford private care waits longer, which is why cheap, portable tools could make a real difference.

Why a Symptom Diary Doesn't Fix This

A symptom diary is useful, but it's easy for a busy doctor to wave off. "My pain is really bad" is hard to act on. A year of dated pain logs, plus sleep disruption and temperature patterns from a wearable, is much harder to ignore, and it gives the doctor somewhere to start.

I'll be honest here. No wearable on the market diagnoses endometriosis today, and I don't want anyone reading this thinking a ring will do that. What I do think is coming is better data going into the appointment and better clinical tools, like imaging, coming out of it. That combination is the real breakthrough. It's also a lot less cute than an app with a mascot.

What Wearables Can Do Right Now

Wearables are further along than most people think. Oura's women's health features already include Cycle Insights, Fertile Window and Pregnancy Insights, plus a women's health AI model built to read your data through a women-specific lens. In May 2026, it added hormonal birth control support on top of that.

I've complained about this gap before. When I wrote about the Gucci x Oura ring, the big drawback was that it launched before the Natural Cycles integration, so it couldn't track your cycle at all. Bummer. Now the same company is working on contraception and perimenopause. That's a big jump in a short time.

Still, I'd keep some skepticism. A feature rolling out in an app doesn't mean anything changes in a doctor's office, and we don't have much evidence on that yet.

Menopause Is Finally Getting Its Moment

For years, perimenopause got almost no attention from consumer tech. That's starting to shift. With Menopause Insights, Oura built a questionnaire called the Menopause Impact Scale that covers 22 symptoms, and members can save the results and share them with clinicians. Oura describes perimenopause as one of the most overlooked and misunderstood phases in women's health, and says more than 1 billion women worldwide are in perimenopause or post-menopause.

Perimenopause is messy to track, because things like poor sleep and mood changes have plenty of other causes. Oura also says clearly that the ring isn't a medical device and isn't meant to diagnose anything. Worth knowing before you get too excited.

The Part I Like Most

The sharing with a clinician bit. A lot of women walk into a menopause appointment trying to remember six months of hot flashes, bad nights and mood swings on the spot. Having it all written down next to sleep data makes that conversation easier. That's the pattern I want to see more of. Collect something, then hand it to someone who can act on it.

One caution. It's Oura's own scale, and I couldn't find any independent research on it, so I'd want to see some before getting too excited.

Privacy Has to Come First

The more personal femtech gets, the more this matters. Think about everything a perimenopause or birth control feature knows about you. Medication, symptoms, sleep, mood, temperature. That's a lot of very private information sitting on a company's servers.

And the track record isn't great. Mozilla reviewed 25 reproductive health apps and wearables, and 18 earned its "Privacy Not Included" warning. Mozilla said most had no clear policy on sharing data with law enforcement, which is a real worry in the US after Roe was overturned.

That report is from 2022, so things may have changed. Before you download anything, check whether your data stays on your device, whether it gets shared with third parties, and whether you can delete it. If I'm choosing between two femtech products, I'm reading the privacy policy before the feature list. Founders building the next wave should treat privacy as a selling point. I'd pay extra for it.

Women's Health Is Bigger Than Reproductive Health

Here's what I think gets missed in most femtech pitches. A World Economic Forum and McKinsey Health Institute report found women spend 25% more of their lives in poor health than men, and that closing the gap could add at least $1 trillion a year to the global economy by 2040. One of the report's co-authors said women's health is often simplified to sexual and reproductive health, which understates the real burden.

So a product that only handles cycles covers a slice. Heart health, sleep, metabolic health, autoimmune conditions–all of it deserves tools built with women's bodies in mind. A lot of wearable scores treat you like you have the same baseline every day. Nobody does. A woman's baseline shifts across her cycle, through pregnancy and into perimenopause, and the tech should expect that.

What I'd Actually Fund

If I had money to hand out (I don't, but let's pretend), I'd skip tracker number five hundred and ask three questions. Does it get a woman diagnosed faster? Does it have independent research behind it? Does it keep her data private by default? If the answer to all three is yes, take my money.

I'd also want studies with women of different ages and backgrounds, because a feature tested on a small group won't necessarily work for everyone.

Wrapping Up

So what is the next breakthrough? I think it's the stuff that sounds boring. Faster diagnosis. Menopause care that takes data seriously. Privacy you don't need a law degree to trust. Wearables that understand a woman's baseline moves around.

I'm genuinely excited about where this is going, especially with smart rings, since they're the thing I actually keep wearing. They're comfortable, they don't look like a gadget, and the data keeps getting more useful.

Femtech founders, if you're reading this, skip the next calendar app. Go work on endometriosis, perimenopause, anything where a woman is stuck waiting years for someone to take her seriously. Hit me up if you need a tester.

In the meantime, I'll be here, reading your privacy policies.