The wellness world wellness become an increasingly important part of everyday life, the search for balance is inspiring new conversations about how technology, science, and personal well being can work together. For Dmitri Leonov, co founder and CEO of OneDevice, this exploration began with a longstanding fascination with physics and the fundamental nature of the world around us. His curiosity led him towards light, sound, vibration, and the emerging field of frequency based wellness, eventually inspiring the creation of a wearable device designed to become part of daily life.
Leonov’s vision grew from a question about how people approach health and well being. He felt that conventional ways of thinking often treated the body as a mechanical system that needed to be repaired, while holistic traditions placed greater emphasis on balance and the body’s capacity for self regulation. Alongside this interest, he explored research into how light, sound, vibration, and electromagnetic fields may influence biological processes. His experience with light based technologies further encouraged him to consider how different forms of stimulation might be combined in a more accessible way. The central idea was straightforward: if light and sound could each have applications in wellness, could they be brought together intelligently in a wearable device that people could use throughout the day?
That question became the foundation of OneDevice, a product developed over more than four years of testing, measurement, and refinement. Rather than asking users to attend a dedicated session or set aside time for a stationary treatment, Leonov wanted to create something that could accompany them through ordinary routines. The device combines sound, visible light, and infrared light, with its light output synchronised to sound frequencies. The intention is to offer a subtle and consistent experience rather than the more concentrated sessions associated with some stationary technologies.
Wearability was central to the design. Leonov wanted the device to feel less like a piece of technical equipment and more like something people would genuinely enjoy wearing. Its pendant form was designed to be compact and elegant, with finishes including 24 karat gold, rose gold, and platinum. Ease of use was equally important. The device is designed to turn off when placed flat and activate when picked up, while users can also select and hold a particular frequency. More recently, the company has developed an app that can personalise frequency programmes using information such as voice analysis or heart rate variability. In keeping with the brand’s emphasis on avoiding wireless emissions, the phone communicates with the device through physical vibration rather than Bluetooth.
For Leonov, the experience of using OneDevice is personal, and he recognises that people describe it in different ways. Some report feeling grounded or more aligned, while others describe a greater sense of calm, improved focus, or renewed daytime energy. In the company’s pilot study, participants reported changes in several areas of perceived well being, including stress, energy, sleep, and emotional balance. Leonov says the strongest reported signal was a reduction in stress, with 88 per cent of participants reporting that they felt less stressed. Average stress scores fell from approximately nine to 4.3 on the scale used in the study.
These findings are an encouraging starting point for the company, although they should be understood in the context of preliminary research rather than definitive evidence of clinical effectiveness. Leonov also notes that many users who track their heart rate variability have reported increases after beginning to wear the device. The company is now working to study this more formally. For him, these personal accounts point towards the experience he hopes OneDevice can support: a feeling of being calmer, more focused, and energised, with a greater sense of balance in everyday life.
Explaining the thinking behind frequency based wellness can be challenging, particularly for people who are unfamiliar with the science. Leonov often turns to the idea of resonance, the principle that systems can respond to vibrations and influences around them. He draws comparisons with natural rhythms, including the way circadian patterns are influenced by daylight and how biological rhythms can interact between people. In his view, everyday life exposes us to a complex environment of sensory information, stressors, and other influences, and frequency based technologies may offer another way to explore relaxation and self regulation.
OneDevice is built around the company’s hypothesis that coordinated sound and light can provide a consistent sensory input that may help users feel more balanced. This remains an area where further research is needed, particularly when it comes to understanding the effects of a wearable device on the nervous system. Leonov acknowledges that the field is still developing and that the existence of research into individual technologies does not automatically establish the effectiveness of every application. For him, continued investigation is an essential part of moving the conversation forward.
Some of the most memorable moments in the company’s journey, however, have come not from technical development but from the stories shared by users. Leonov recalls meeting a customer at a conference who told him that OneDevice had helped his marriage. Other customers have described family members wanting to borrow their devices, while some have reported using them with their horses. Such experiences are deeply personal, and Leonov recognises that the effects people describe are not always easy to put into words. Although individual accounts cannot establish that a device causes a particular outcome, they have helped the company understand how differently people experience wellness and why personal feedback matters.
Looking at the wider wellness landscape, Leonov believes frequency based approaches could become a more familiar part of everyday self care. He hopes they will eventually be considered alongside other options for supporting relaxation, sleep, focus, and well being, rather than being viewed only as alternative approaches. His ambition for OneDevice is not simply to build a successful product, but to contribute to a broader shift in how people explore the relationship between their environment, their bodies, and their daily habits.
A significant part of this vision is personalisation. The company’s bio tuning approach builds on work developed by its adviser and partner, Dr Jeffrey Thompson, a pioneer in frequency technology and vibroacoustics. According to Leonov, Thompson developed a method of identifying an individual’s resonant frequency through heart rate variability biofeedback, observing how heart rate variability responds to different sound frequencies and using the findings to create personalised sound programmes. OneDevice aims to make selected personal frequencies available through a wearable format, allowing the experience to continue throughout the day.
Leonov believes personalisation will become increasingly important across wellness and healthcare. People differ in their biology, preferences, circumstances, and goals, and he sees an opportunity for frequency based technologies to reflect those differences more closely. The company’s standard programmes are intended to offer a starting point, while its personalised approach explores how individual responses might inform the experience. Leonov is enthusiastic about the possibilities, but the effectiveness of these approaches requires careful evaluation, and the company says it is continuing to develop its methods and research.
In an increasingly crowded wellness technology market, Leonov believes OneDevice stands apart through its combination of wearable design, ease of use, and commitment to operating without Bluetooth or Wi Fi. Rather than requiring users to add another appointment or structured activity to an already busy schedule, the device is intended to fit naturally into daily life. Its design reflects the belief that a wellness product should be comfortable and appealing enough for people to choose to wear it consistently.
For consumers considering any new wellness technology, Leonov recommends looking at the available research, reading customer experiences critically, and considering information from sources they trust. He also recognises that studies cannot answer every question about an individual’s experience. The response to a product may vary from person to person, which is why he encourages people to approach new technologies thoughtfully and assess whether they suit their own needs. OneDevice offers a 90 day money back guarantee, giving customers an opportunity to try the product and decide whether it is right for them.
At the same time, Leonov stresses that the company’s work is ongoing. Research into frequency based wellness covers a range of technologies and applications, with different levels of evidence supporting different uses. Light based treatments have been investigated in areas such as tissue recovery, while other technologies, including microcurrent and focused ultrasound, have specific medical applications. These findings should not be taken as proof that a wearable combining light and sound produces the same outcomes. Leonov acknowledges that the subtler effects the company hopes to support, particularly those related to nervous system balance, need more focused study.
This distinction between established applications and emerging possibilities is important to his approach. Although he sees considerable potential in frequency based technologies, he believes the field still has work to do before many of its applications can be considered mainstream. Continued research, transparent communication, and careful measurement will be essential to understanding what these devices can reliably offer. For OneDevice, the next stage involves developing the product while building a stronger evidence base around the experiences users report.
Looking ahead, Leonov wants to broaden the way people think about their everyday environment and its relationship with well being. He describes this idea as frequency hygiene: paying attention to the sensory and environmental influences that surround us, much as we consider the food we eat, the water we drink, and the air we breathe. Through OneDevice, he hopes to give people a simple way to engage with this concept and take a more active interest in their own wellness routines.
At its heart, the brand reflects Leonov’s belief that technology should be designed around the realities of everyday life. A product may be informed by complex ideas, but the experience of using it should feel straightforward, accessible, and personal. By combining a discreet wearable form with an exploration of light, sound, and individual responses, OneDevice seeks to bring a developing area of wellness research into a familiar daily setting.
Dmitri Leonov’s journey with OneDevice is ultimately about curiosity and the willingness to explore questions that sit at the intersection of science, technology, and human experience. His vision invites people to consider well being not simply as something addressed when a problem appears, but as an ongoing relationship with their bodies, habits, and surroundings. The promise of this approach will depend on continued research and a clear understanding of its limits, but its central ambition is easy to recognise: to make the pursuit of balance feel more personal and more accessible.
For Leonov, the future of wellness lies in combining thoughtful design with individual choice and a commitment to learning. OneDevice is his contribution to that evolving conversation, built around the idea that caring for ourselves can become part of the rhythm of everyday life, rather than another task to fit into it.
