Samsung is pulling back the curtain on its newest health frontier at CES 2026: a feature called Brain Health. While our watches already track our hearts and our sleep, Samsung is now trying to peek into our cognitive future. This new service isn’t just a fitness tracker for your mind; it’s a sophisticated early-warning system designed to spot the subtle, often invisible signs of dementia long before they become obvious to a doctor.
The core idea behind “Brain Health” is to turn our everyday gadgets into diagnostic powerhouses. Instead of needing a brain scan or a battery of clinical tests, the system looks at “digital biomarkers” – the tiny changes in how we move, talk, and sleep that can signal the onset of cognitive decline.
Samsung isn’t just guessing here. The feature is built on research that suggests brain changes can begin a decade or more before a formal Alzheimer’s diagnosis. By embedding this into the Samsung Health app, the company is betting that constant, passive monitoring can catch these “red flags” much earlier than a yearly checkup ever could.
So, what exactly is your phone looking for?
The “Brain Health” system pulls data from your Galaxy phone, Watch, and even the Ring to analyze three main pillars:
Gait Patterns: It tracks your walking speed and the rhythm of your steps. Changes in balance or a slowing pace can be some of the earliest physical signs of cognitive issues.
Vocal Changes: The AI analyzes subtle shifts in your voice – things like speech fluency, the time it takes to recall words, and even the tone or accuracy of your sentences.
Sleep Metrics: While we already track sleep, this feature looks specifically for “stability” and quality patterns that are often disrupted when the brain begins to struggle with memory or processing.
Earlier research from Samsung also hinted at tracking typing speed and messaging patterns, though it remains to be seen if those specific “behavioral” logs will be active in the first version shown at the Wynn Las Vegas.
Samsung is careful to say this isn’t a replacement for a doctor
Instead, if the system notices a downward trend, it acts as a guide. It might suggest “preventive measures” or enroll you in a personalized brain training program – similar to digital brain games – designed to keep your cognitive gears turning. In more serious cases, it can even be set up to alert a guardian or caregiver if it detects an emergency or a sharp decline.
Because this is arguably the most sensitive data a phone can collect, Samsung is leaning hard into its Knox security. The company claims all processing happens locally on your device, meaning your “brain data” isn’t being uploaded to a cloud or shared with external networks.
For now, Brain Health is a “showcase” feature. Samsung has finished the in-house development and is currently putting it through clinical validation with medical institutions to make sure the AI is actually accurate.
If it passes those tests and clears regulatory hurdles, it could be a game-changer for aging populations. It transforms a smartwatch from a luxury toy into a vital piece of medical equipment that offers peace of mind – or at least a head start on a very difficult journey. We expect to hear more about a possible rollout for the Galaxy Watch 9 or future S-series phones as those clinical trials wrap up later this year.