The vagus nerve — coined from the Latin word for “wandering” — is the longest cranial nerve in the human body, extending from the brainstem through the neck and branching into organs in the chest and abdomen.
Stimulating the vagus nerve has shown potential for mental and physical health benefits, supporting stress management, mood regulation, sleep, and pain reduction.
In clinical settings, vagus nerve stimulation (VNS) was first used invasively to treat conditions like epilepsy and depression unresponsive to medication and treatment. However, recent advancements have made non-invasive VNS devices available for home use to support wellness goals, including relaxation, mood, and sleep.
These devices, such as Pulsetto and Nurosym, are marketed to potentially stimulate the vagus nerve in a non-invasive, less intense (than the clinical method), and user-friendly way.
This article compares the aforementioned products, highlighting their unique approaches to non-invasive VNS, supported by scientific insights and user experiences. We want you to have a clear answer to which one may be a worthwhile option for you.
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Pulsetto vs. Nurosym: head-to-head comparison
Here is a detailed comparison table that provides a snapshot of each device’s core features:
| Product | Stimulation area | Placement | Wearability | Battery life | Session duration | App features | Certifications | Price | Shipping details |
| Pulsetto | Cervical region (in the neck) | Around the neck | Neckband device | Rechargeable (about a week with daily use) | 4–60 minutes | Customizable programs, tracking, sound library | FCC | $499 (discounted to $249) | Worldwide shipping |
| Nurosym | Auricular (ear) region | Behind the left ear | Earpiece device | Rechargeable (may last up to a week) | 30–60 minutes | No app connectivity | CE | €699 | All EU and UK countries, selected countries worldwide |
How and why we chose to compare these products
Pulsetto and Nurosym are two leading at-home vagus nerve stimulation devices. We selected these devices based on their popularity, unique features, and user feedback. By evaluating these devices side by side, our goal is to help you identify which option aligns better with your needs.
This comparison also offers insight into what makes each device unique, showcasing how Pulsetto and Nurosym stand out in the growing market of non-invasive VNS devices.
What is Pulsetto?
Pulsetto is a non-invasive VNS stimulator marketed to potentially reduce stress and anxiety levels and improve sleep quality.
The device operates through transcutaneous vagus nerve stimulation (tVNS) by delivering gentle electrical impulses through electrodes placed on the neck, specifically targeting the cervical branch of the vagus nerve.
This nerve plays an important role in the parasympathetic nervous system (rest and digest system), which regulates bodily functions such as heart rate and digestion. By stimulating this nerve, Pulsetto aims to support relaxation and promote a sense of calm.
Revitalize your life with the Pulsetto vagus nerve stimulator — your steadfast companion for wellness that lasts.
Pulsetto features
Pulsetto is a wearable device designed to fit comfortably around the neck. It has a power button and LED indicators for status updates.
The package includes:
- Pulsetto nerve stimulator
- Pulsetto app
- Device charging cable
- Electrode gel
- User manual
The device has an app integration that offers programs based on individual needs. Upon first use, the app guides users through a quick quiz to assess their wellness goals and recommend the most suitable program among five options: stress, anxiety, sleep, burnout, and pain.
The app connects to the device through Bluetooth and tracks session details and insights.
How to use Pulsetto
Here’s the brand recommendation:
- Start by powering on with a button press, then sync with the app.
- Apply gel to the neck region on both sides.
- Place the device on your neck and check if the electrodes are on the sides where you applied the gel.
- Select the program, and you will see more instructions on the screen.
- Increase the intensity level in the app to the one you’re comfortable with and enjoy your session.
Pulsetto effectiveness and safety
No clinical trials have investigated the safety and efficacy of the Pulsetto device.
Most existing scientific research targets the auricular branch of the vagus nerve in the ear, whereas the Pulsetto device targets the cervical branch in the neck area. Therefore, there is a lack of research to substantiate all of its proposed benefits.
However, a study on cervical vagus nerve stimulation conducted by Pulsetto and published on their website explored the device’s potential to reduce stress by activating the parasympathetic nervous system.
The results indicated a significant increase in parasympathetic activity, with an average 64.5% drop in the low-frequency/high-frequency (LF/HF) ratio following stimulation.
This LF/HF ratio is a measure within heart rate variability (HRV), which is often used to assess the balance between sympathetic and parasympathetic responses in the body. A lower LF/HF ratio suggests reduced stress levels, potentially due to greater parasympathetic activity. However, since this study was likely conducted internally by Pulsetto, potential biases should be considered.
How much does Pulsetto cost and where to buy it?
You can buy the Pulsetto device from the company's website or on Amazon. It’s currently discounted by $250, bringing the price down from $499 to $249, with free worldwide shipping included.
What users are saying about Pulsetto
| Trustpilot | Amazon |
| 4.3 ⭐⭐⭐⭐ | 4.1 ⭐⭐⭐ |
What people like
Pulsetto users report a strong sense of value for money, with some comparing it favorably to pricier alternatives. For instance, one user noted that Pulsetto delivers results similar to those of more expensive devices but with added ease of use and a more user-friendly design.
Users also highlight its benefits for stress, sleep, and anxiety, with one user mentioning its calming influence before important business calls.
What people don’t like
Some users express frustration that all programs aren’t included in the free app version. Language options in the app also stand out as a need, with one user mentioning that the English-only setup poses challenges for non-native English speakers.
Another user mentioned that applying the electrode gel and positioning the device on the vagus nerve can be challenging.
What is Nurosym?
Nurosym is a wearable neuromodulation device developed by Parasym. The device operates through transcutaneous auricular vagus nerve stimulation (taVNS), where gentle electrical impulses are delivered via the tragus (the small cartilage at the front of the ear).
This process initiates a "rest and digest" response that may reduce inflammation, ease anxiety, improve mood, and support certain aspects of cardiovascular and digestive health.
Nurosym is a CE-marked device delivering proprietary Auricular Vagal Neuromodulation Therapy (AVNT)™️.
Restore your physical and mental health with an innovative neuromodulation device.
Nurosym features
Nurosym’s design is centered on ease and adaptability. The single-ear earpiece, which fits on the left tragus, is compact and easy to use, making it suitable for everyday routines at home or on the go. Its adjustable intensity settings let users personalize their experience.
The package includes:
- Controller
- Earpiece
- Charger
- Case
- Quick start guide
It typically takes up to an hour to fully charge and may last up to a week on a single charge.
How to use Nurosym
- Apply a bit of moisture on the tragus (no gel needed)
- Wear the earpiece correctly on the tragus of your ear; the cable should go over and behind your ear to keep the electrodes in place.
- Press a button to turn on the device.
- Slowly increase the energy level until you feel a light tingling sensation in your ear.
- Use for 30–60 minutes a day.
Nurosym effectiveness and safety
The existing research methodology used Parasym devices, but not specifically the Nurosym device. However, these studies provide insight into the effects and potential applications of Parasym's neuromodulation technology.
These studies have explored taVNS applications in different health contexts, showing promising results for heart rate variability (HRV) improvement, fatigue reduction, and autonomic regulation, particularly in conditions like long-COVID syndrome.
For instance, studies with healthy young adults revealed that taVNS could improve HRV, which is a measure of the autonomic nervous system and efferent vagus nerve activity (signals sent from the brain to the body through the vagus nerve). Decreased HRV is associated with several diseases, such as cardiovascular or neurodegenerative conditions.
In addition, a pilot study was conducted on 20 patients with long-COVID syndrome who received daily tVNS stimulation (Parasym device) to the left ear for 35 minutes daily for 10 days. Results showed improvements in symptoms, including reduced fatigue and improved mood.
Consulting a healthcare professional is essential to ensure Nurosym’s suitability and any necessary precautions.
How much does Nurosym cost and where to buy it?
The device costs €699 or $774.17 (the fee is location-specific), and you can get it on the company’s website.
No special offers are currently available. You can also purchase extra accessories from the website, including the earpiece, felt case, charger, and right earpiece.
What users are saying about Nurosym
| Trustpilot rating | Amazon rating |
| 4.2 ⭐⭐⭐⭐ | Not available |
This section will highlight what users like and don’t like.
What people like
Nurosym users report several benefits, especially in areas like sleep, stress, and mental clarity. Many find it helps improve sleep quality, and some mention a noticeable sense of calm and reduced stress.
Some people tracking HRV have observed improved levels over time. In addition, one user with chronic fatigue syndrome stated that regular use helped to calm their nervous system.
Customer support is also noted as responsive and helpful.
What people don’t like
One user with Long COVID noted no improvements in symptoms despite consistent use, while another user reported adverse effects like elevated heart rate and palpitations.
Another common concern involves Nurosym’s return policy. Some users experienced delays and a lack of response when returning the product within the advertised window.
Pulsetto and Nurosym vs. other vagus nerve stimulators
Here's a quick comparison table for Pulsetto, Nurosym, and other vagus nerve stimulators:
| Product | Price | App integration | Technology used | Money-back guarantee | Placement |
| Pulsetto | $249 | Yes | tVNS | 30 days | Neck |
| Nurosym | €699 | No | taVNS | 30 days | Ear |
| Hoolest | $399 | No | tVNS | 60 days | Under the ear |
| Truvaga Plus | $499 | Yes | tVNS | 30 days | Neck |
| Sensate | $299 | Yes | Infrasonic vibrations and soundscapes to tone the vagus nerve | 90 days | Chest |
| Neuvana | $449 | Yes | taVNS | 30 days | Ear |
| Apollo Neuro | $299.99 | Yes | Transcutaneous vibratory stimulation | 30 days | Wrist, ankle, or clip-on wearable |
Final verdict: Pulsetto or Nurosym?
When choosing between Pulsetto and Nurosym for non-invasive vagus nerve stimulation (VNS), each device brings unique advantages suited to different user needs.
Pulsetto stands out for its affordability and app-driven personalization. Designed to stimulate the cervical vagus nerve via neck electrodes, Pulsetto offers programs for stress, anxiety, sleep, and more, with easy adjustments available through the Bluetooth-connected app. While the device is mainly supported by limited internal research rather than clinical studies published in scientific journals, many users report improved relaxation and sleep quality. Pulsetto requires applying gel and maintaining Bluetooth connectivity, which might not suit everyone’s preference for simplicity and convenience.
Nurosym, priced higher, targets the auricular branch of the vagus nerve in the ear. It offers a CE-marked device with a discrete design that’s compact and straightforward, suitable for users who prioritize ease of use and portability without the need for gels or apps. Although the brand highlights clinical studies conducted with similar Parasym technology, these do not directly validate Nurosym’s specific efficacy.
FAQ
How do Pulsetto and Nurosym vagus nerve stimulators work?
Pulsetto and Nurosym are non-invasive devices marketed to stimulate the vagus nerve by delivering mild electrical impulses, although targeting different branches of the vagus nerve. Pulsetto uses cervical vagus nerve stimulation (targeting the neck area), whereas Nurosym stimulates the tragus of the ear.
Who should avoid using Pulsetto or Nurosym for vagus nerve stimulation?
Pulsetto should be avoided by individuals with certain heart conditions, seizure history, active implantable medical devices (such as a pacemaker, hearing aid, etc.), or those who are pregnant. Nurosym, which targets the ear area, is unsuitable for users with severe bradycardia, active implantable medical devices, or those who have undergone vagus nerve surgery. Pregnant individuals and people with coronary artery disease are also advised to consult with a healthcare provider before use.
Are commercial vagus nerve stimulation devices safe to use?
The safety of commercially available vagus nerve stimulators, especially non-invasive ones sold online, can be challenging to evaluate. Unlike clinical-grade devices used in medical settings, many devices have not undergone rigorous testing for safety or efficacy. These devices often lack robust clinical research, and their efficacy and risk profiles may vary widely.
What are the common side effects of non-invasive (VNS) devices?
Non-invasive VNS is generally well-tolerated, but some users may experience mild side effects. Common reactions include tingling, redness, or irritation around the stimulation area. Some individuals may also feel nausea, dizziness, or a sense of discomfort at higher intensity levels. If these side effects persist or worsen, it is advisable to lower the stimulation intensity or discontinue use temporarily or altogether.
3 resources
- PubMed Central. An overview of heart rate variability metrics and norms.
- PLOS ONE. The effect of transcutaneous auricular vagus nerve stimulation on HRV in healthy young people.
- Frontiers in Neurology and Neuroscience Research. Transcutaneous auricular vagus nerve stimulation (tVNS) can reverse the manifestations of the long-COVID syndrome: a pilot study.
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