All Day Relief with Felix
Live Your Best Life
Felix NeuroAI™ Wristband
A Revolutionary Device Powered by Cutting-Edge Artificial Intelligence
For years, people have anticipated the day when AI would transform disease treatment. Felix is that breakthrough technology – an innovative solution combining advanced artificial intelligence and neurotechnology to help patients with movement disorders.
The first FDA cleared indication for Felix is Essential Tremor (ET), a condition affecting millions of people across the U.S. Felix is the world’s first AI-empowered wearable that modulates the nervous system to help alleviate tremor-related functional limitations in individuals with ET.
Worn on the wrist, Felix connects to the cloud, where Fasikl’s proprietary AI technology continuously adjusts stimulation parameters to deliver personalized, dynamic therapy that calms tremors and restores motor control. Unlike other treatments, data from the pivotal clinical trial show that Felix provides all-day relief for both hands and is effective for patients with mild, moderate, or severe tremors. It can be used independently or alongside medication, offering a flexible and comprehensive solution for tremor management.
Felix NeuroAI is included in the International Essential Tremor Foundation (IETF)’s Essential Tremor in Adult Patients Guideline (2026 Edition), where peripheral nerve stimulation is placed alongside first-line pharmacological therapy in the management algorithm.
Clinical Evidence
Rigorous Multicenter Clinical Evaluation
Felix NeuroAI™ was evaluated in a multi-region, multicenter clinical study that included a 90-day randomized, double-blind, sham-controlled phase, followed by a 270-day open-label extension to evaluate longer-term outcomes.
Felix Patient Stories
Watch real patients share their essential tremor stories, how they found Felix, their experience using it, and the difference it has made in their everyday lives.
David, a retired deputy sheriff, developed significant tremor following an accident in 2015. As his tremor progressed, it affected everyday activities, but also challenged his confidence and ability to do things that had been central to his life and career. After trying multiple medications and other ways of coping without sufficient relief and disliking how the medications made him feel, David asked his provider what else he could do and learned about Felix. Initially skeptical, he began using the device and reports progressive improvement in his tremor and everyday activities, including improvement in both hands. He feels strongly enough about his experience that he offers to speak with other patients who may be uncertain about trying it. Acknowledging that his story may sound like a promotion, David emphasizes that he is simply sharing the truth about his own experience with the device.
Linda, a former teacher and writer, has lived with essential tremor for about 20 years. As her symptoms progressed, she learned to cope with her tremor while continuing to teach, but eventually stopped teaching. She describes the fear of having few options that felt right for her and feeling as though essential tremor was a “life sentence.” She discovered Felix through a newspaper article and began using it daily. She reports noticeable improvement and describes the device as becoming a seamless part of her everyday life. Linda values having a non-invasive treatment option and has been especially impressed by both the technology and the personal support she has received.
Christie, 84, has lived with essential tremor for more than 40 years and has experienced increasing difficulty with everyday activities. She takes propranolol but has had to reduce her dosage because of other medical issues. She says she could see a difference with propranolol, but with Felix, “it is a big difference.” Using Felix has given her more confidence in everyday activities and has become part of her everyday life. She describes her overall experience as wonderful and has shared her story with friends and others she knows who have essential tremor. While recognizing that results may vary from person to person, she encourages others with essential tremor to consider trying Felix.
“I was working as an electrician but had to quit because of the disease. I thought I was going home to slowly die. The medications made me sleepy, and the disease kept progressing. After using the device for a month, I was able to carry a mug of tea and enjoy it – no splashes, no spills.”
Steve
“I tried medications but had to stop because they lowered my blood pressure and made me feel foggy. I was really hoping my doctor could offer a therapy that didn’t involve taking a pill. Now, the first thing I do in the morning is put on Felix. It has significantly improved my life – Felix is a game changer. I would absolutely recommend it.”
Karen
“For me, it’s better than taking medication. It’s a great solution – it works. There’s something actively monitoring my body and responding to it. Not only does it reduce my tremor, but it has also improved my relationships.”
David
“This essentially achieves what major invasive surgery would – without the invasiveness. The best way to describe it is: I don’t need medication, yet I’m experiencing better treatment outcomes. It’s about dignity and the feeling of being normal again – something you can’t put a number on.”
Christian
What Felix Patients Say
Patient Testimonials
Insurance & Coverage
We work with most major insurance providers to ensure Felix is accessible to those who need it. For patients without coverage or with commercial insurance, we offer private pay and flexible financing options.
Medicare
Traditional Medicare typically covers 80% of the cost for eligible patients if the coverage criteria are met. If you have a Medicare Supplement plan, it may cover the remaining 20%, potentially leaving you with zero out-of-pocket costs after your deductible is met.
Medicare Advantage
Medicare Advantage plans generally follow traditional Medicare guidelines. Coverage and out-of-pocket costs depend on your specific plan details. Our team will verify your benefits and handle the billing process on your behalf.
VA
Felix is available through the VA health system. Because each VA facility manages Durable Medical Equipment (DME) coverage individually, our team will review your case directly to determine your coverage. Schedule a consultation with your VA Treating Practitioner.
How AI and Neuromodulation Work Together
Fasikl’s NeuroAI technology is built on more than 20 years of neural engineering research and innovation. Its proprietary hardware enables high-precision recording of low-amplitude signals from the human peripheral nervous system. These unique neural signals, together with multimodal physiological and real-world patient data, form the foundation for disease-specific AI models that guide and adapt neuromodulation.
When a patient uses Felix, continuous sensing, data analysis, and adaptive stimulation create an ongoing interaction between AI and the patient’s sensorimotor system. Through repeated interaction, the nervous system may explore and reinforce patterns of motor control associated with less tremor – a process we describe as human–AI co-adaptation.
Felix offers a new opportunity to regain control of your hands.
Interested in purchasing Felix?
Fasikl is proud to introduce Felix – an AI therapeutic and the first of its kind for the treatment of essential tremor. We strive to care for every patient as we would a friend or family member, from carefully crafting and inspecting each Felix device on our production line to personally supporting each patient throughout their treatment journey, whether in person or virtually. As we continue to expand our production and patient-service capacity, demand may exceed supply in the near term.
If you are interested in obtaining Felix, please reserve a device to join the waitlist. After making a reservation, you will receive a queue number and detailed instructions by email, including information about obtaining Felix, insurance coverage, and device fitting. You will also have the opportunity to schedule a short call with our team. As your place approaches the top of the queue, we will contact you to collect the necessary information and guide you through the next steps.
