CES is usually about bigger TVs and faster processors, but this year, the focus has shifted south—way south. From analyzing your saliva to monitoring menstrual blood and even tracking hydration via your toilet, wellness tech is getting incredibly personal. The question is: are consumers ready for this level of intimacy with their gadgets?

Testosterone on Demand: Eli Health Expands Hormometer Capabilities

Last year, Eli Health debuted its Hormometer, a spit-based cortisol test. This year at CES 2026, they're leveling up, adding both testosterone and progesterone tracking to the same platform. According to The Verge, the process remains the same: stick a cartridge attached to a wand in your mouth for about a minute, then let the Eli app analyze the results using your phone's camera.

Eli Health is betting that convenience and price will win over consumers. They're projecting individual tests to start at just $8.25. That's a potentially disruptive value proposition compared to traditional lab work, but the real-world accuracy remains to be seen. I need to see the data before I declare this a win for consumers.

Pads and Plumbing: Vivoo's Two-Pronged Approach to Hormone Monitoring

Vivoo is taking a decidedly different approach, focusing on menstrual blood and urine. Their FlowPad, a menstrual pad priced around $4 to $5, doubles as an at-home hormone test for follicle-stimulating hormone (FSH), as reported by The Verge. CEO Miray Tayfun explains that the FlowPad evolved from a vaginal pH tracking liner. It's certainly… innovative.

But Vivoo isn't stopping there. They're also introducing a Smart Toilet, an evolution of their 2023 concept, as Engadget reports. This device clips onto your toilet bowl and uses optical sensors to monitor hydration levels through urinalysis. Early adopters can snag one for $99, but the price jumps to $129 with a $6 monthly subscription later in the year. This is where I start to seriously question the value proposition.

Brainwave Buds: NAOX Enters the Chat

While Eli and Vivoo are focused on hormones and hydration, NAOX is targeting your brain. According to Engadget, the French startup is showcasing wireless earbuds with built-in EEG (electroencephalogram) technology. These aren't just for listening to music; they're designed to monitor your brain's health, tracking mental activity, sleep patterns, and even cognitive performance.

NAOX is initially targeting clinical environments with their Link NX01 in-ear EEG, but the consumer version, the NAOX Wave, is slated for release by the end of 2026. The company is also open to licensing its technology, meaning we could see EEG-equipped earbuds from other manufacturers soon. While intriguing, the real-world accuracy and usefulness of these brainwave-sensing earbuds remain to be rigorously tested.

While the innovation on display at CES is impressive, the long-term viability of these intimate health trackers hinges on accuracy, user privacy, and, frankly, whether consumers are comfortable with this level of data collection. As always, proceed with caution and demand verifiable results before trusting your health to the latest gadget.