SONA is the first AI-powered wearable that delivers real-time HRV guided vagus nerve stimulation, helping regulate your nervous system to improve stress, sleep, and focus.

SONA uses a method called Neural Toning – science-based electrical stimulation of the vagus nerve via the cymba concha in your ear. It learns your unique rhythm using biometric feedback and adapts in real time to optimise your performance and wellbeing.

SONA is for high performers, deep feelers, and anyone ready to take control of their nervous system — with calm you can feel and results you can measure.

Yes. Sona is built on neuroscience and grounded in clinical research into vagus nerve stimulation and nervous system regulation. It was developed with input from neuroscientists and health experts.

Absolutely. Sona uses low-level, non-invasive stimulation that’s safe, gentle, and comfortable for everyday use.

Yes. Sona is designed to complement your existing wellness routine — whether that includes mindfulness, fitness, or other health apps.

The vagus nerve, also referred to as the tenth cranial nerve, starts at the medulla oblongata, a cone shaped part of the brainstem. Often known as the great “wandering” nerve, the longest in our body, it forms an information superhighway between the brain and all of our major organs.  Experimental stimulation of the vagus nerve has been widely explored in medical research and is successful in the treatment of epilepsy and drug-resistant depression and is NICE approved for cluster headache and migraine. It is also looking very promising for inflammatory conditions such as sepsis, lung injury, rheumatoid arthritis, and diabetes. Driven by such findings, we are now taking forward the potential of vagus nerve stimulation (VNS) as a therapeutic intervention to reduce stress, increase performance and treat chronic stress related conditions.

We use Heart Rate Variability (HRV) as a biomarker for detection of stress. HRV is simply a measure of the variation in time between each heartbeat and is controlled by the autonomic nervous system (ANS), which regulates our heart rate, blood pressure, breathing and digestion. HRV reflects the ability of the heart to respond to different situations and can react to stress or illness before any changes in resting heart rate are seen. This makes it a very powerful signal providing insights in stress and recovery status.

We are also developing new biomarkers obtained from electroencephalogram (EEG) signal analysis. We are interested in the changes across the four frequency bandwidths: (delta, theta, alpha, and beta).  Alpha and Theta rhythm power decreases under stress conditions, while beta rhythm power increases. The ratio of theta over beta power (theta/beta ratio) also decreases. Alpha also decreases in the right prefrontal cortex compared to the left-hand side when you’re stressed.

Combined these biomarkers give us a powerful picture of stress.

Biofeedback is all about tapping into things you can control, like your rate of breathing & your diaphragm (cool fact - this is the only internal organ you can consciously control, you can’t tell your kidney to speed up) to influence your brain.

So, if you’ve ever tried to tell yourself not to worry and it’s failed and it’s just made you worry more, join the club. Our brain doesn’t respond to self-talk very well, so you need to be more covert and influenced with more devious methods.

In the same way you train and build muscles with exercise, HRV biofeedback uses your respiratory apparatus (lungs and diaphragm), particularly on your long slow exhale to activate your vagus nerve which sends messages to relax. This can be measured through increases in your HRV and has been used by elite athletes and the military for years to maintain focus and control in stressful situations as well as increase resilience, i.e. recover more quickly after each stressful event.

And if you look at the 2,500-year-old eastern breathing practices of monks and yogis, it turns out they use the same breathing patterns and there is indeed nothing new under the sun, except we understand the science now of how it works and can use today’s tech to watch it happening.

Bioelectronic medicine combines neuroscience, molecular biology, and bioengineering to tap into the nervous system to help the body heal itself. Making effective and targeted bioelectronic medicine devices relies on how much information we have about a condition and its neural signaling.

Once we know how the neurons in the vagus nerve are signaling the disruption of homeostasis in various diseases, we can use our technology to disrupt this signal in its earliest stages, even before symptoms arise.

Our wearable earpiece will then stimulate the nerve to either stop or modify this signalling and act only when it is needed.

SONA is currently available for preorder. We’re launching in limited batches to ensure quality and personalisation for early users.

Preordering secures your access to the very first wave of Sona devices — our most advanced, personalised wearable yet. As a limited early release, preorders guarantee priority delivery, exclusive support, and the opportunity to be among the first to experience real-time nervous system intelligence, powered by AI and grounded in neuroscience. It’s more than early access — it’s your edge, unlocked first.

Preorders will ship from Autumn 2025. You’ll receive regular updates, and your order will be delivered with tracked, secure shipping.

Yes. The SONA app pairs with your device to guide sessions, track your progress, and personalise your stimulation based on your goals and biometric signals.

Yes, you can cancel any time before your order ships. We offer a full refund — no questions asked.