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Neurofeedback has been used in clinical settings for almost five decades now but only recently has it become available for home use thanks to technological progress.

If you want to include this brain training method in your wellness practice, you're probably trying to find the best product on the market, right? Mendi and Narbis are, without a doubt, among the top neurofeedback devices, which is why we're here to help you decide! We've compared the technologies they use, the benefits they provide, the feedback type they employ, as well as other features.

Key Takeaways

• The Mendi headband uses fNIRS technology for reliable measurement of prefrontal cortex activity, while the Narbis glasses employ EEG to monitor detailed brainwave patterns.

• Feedback mechanisms differ: Mendi offers interactive, game-based app feedback, whereas Narbis provides subtle visual cues via smart glasses, influencing user engagement and effectiveness.

• Mendi is more affordable and user-friendly, being suitable for those who want to improve focus, sleep quality, stress response, and emotion regulation.

• Narbis is more expensive, but it is praised for the fact that it can be used with different types of activities like reading or watching a movie. The Narbis glasses are excellent for improving focus and promoting relaxation.

Mendi vs Narbis: Key Differences

Recognizing the distinctions between Mendi and Narbis will help you understand which one is better for your goals and needs. As such, here's an overview of the key differences between Mendi and Narbis (which we'll discuss in detail below):

	Mendi	Narbis
Primary goal	Focus, stress resilience, overall well-being	Attention span, focus
Price	$299	$690
Technology	fNIRS	EEG
Measures blood flow	✔	✘
Measures brain waves	✘	✔
Measures heart rate	✔	Unspecified
Gamified experience	✔	✘
Safety	✔	✔
Subscription fees	$0	Unspecified
Number of users	Unlimited	Unspecified
Movement tolerance	High	Low
Noise tolerance	High	Low
Light tolerance	Low	High
Battery life	~ 5 hours or 60 sessions	~ 3 hours
Warranty	1-year warranty, 30-day money back guarantee	1-year warranty, 30-day money back guarantee

1. Technology: fNIRS vs EEG

Mendi and Narbis use fNIRS and EEG technologies. Unlike cranial electrical stimulation or pulsed electromagnetic field which deliver electrical current or magnetic field pulses to the brain, fNIRS and EEG simply observe brain activity and transfer the accumulated data to an app/tablet so you can train your brain.

Mendi’s functional near-infrared spectroscopy (fNIRS) is an advanced brain training technology and a marvel in the world of neurofeedback devices - in fact, while this technology is widely used for research purposes and clinical-grade devices, Mendi is the first consumer-grade neurofeedback device that makes fNIRS available to anyone who wants to try it.

Unlike electroencephalography (EEG), which we'll discuss below, fNIRS measures blood flow and oxygenation. More precisely, the Mendi headband focuses on the levels of oxygenated and deoxygenated hemoglobin. This data informs the headband how focused you are on the ball on the screen while using the Mendi app.

This technology is especially useful for practicing neurofeedback at home because it is less sensitive to head movement, so it provides consistent readings even if you are not perfectly still. On the other hand, fNIRS is sensitive to light, so you'll have to perform your sessions in a dimly lit room.

In contrast, Narbis employs EEG technology to monitor brain activity through sensors. EEG sensors capture brainwave patterns aiming to improve focus. However, EEG can be more sensitive to movement, potentially affecting reading accuracy.

Both EEG and fNIRS are equally effective neurofeedback technologies, having been extensively studied. The difference lies in what they measure. Ultimately, it all depends on your preferences.

2. Design and Training Duration

One major difference between Mendi and Narbis is their design - Mendi is a headband, while the Narbis device consists of glasses with sensors that are linked to the Narbis tablet.

As such, the Mendi headband has several sensors incorporated into the part that needs to be on your forehead. The Narbis glasses, on the other hand, have three sensors - one goes behind each of your ears and the third is placed on the top of your head.

While this isn't one of the most important features of a neurofeedback device, it's worth mentioning because it may be a decisive factor for some, depending on their preferences.

If you have a busy schedule, you're probably also interested in the duration and frequency of neurofeedback sessions.

Compared to Narbis, Mendi requires less of your time - it should be used for 3-15 minutes three times a week. Narbis, on the other hand, recommends wearing the glasses for 30 minutes, 2-3 times a week.

3. Ease of Use

Both Mendi and Narbis are straightforward systems that anyone can use, regardless of their experience with neurofeedback.

The Mendi headband is intuitive and user-friendly, with a mobile app interface simplifying progress monitorization and feedback. Similarly, the Narbis tablet is quite intuitive and allows you to track your brain activity. Plus, both devices are relatively lightweight and can be brought along on trips.

Another thing to consider is that the Narbis glasses use dry electrodes - this is important if you're comparing them to other EEG devices on the market that use wet electrodes. This means you don't have to use any gels or pastes with the Narbis glasses.

4. Feedback Type

The type of feedback provided by a neurofeedback device is extremely important - it is exactly what makes this brain training effective. Mendi and Narbis have different approaches in this regard, which can be a decisive factor for you.

Mendi’s feedback system uses a mobile app with an interactive, game-based activity that provides both visual and auditory feedback. While wearing the Mendi headband, you have to focus on the ball on the screen - when the ball rises, your concentration levels increase. This real-time feedback makes training sessions enjoyable and motivating, turning brain training into a rewarding experience.

In contrast, Narbis uses a more subtle but equally effective feedback system. The smart glasses tint when the user loses focus and clear when focus is regained. This visual feedback serves as a constant, gentle reminder to maintain desirable brain activity, promoting improved focus and emotional regulation.

This method is perfect for those who don't want to commit to a designated app game, for instance, because you can use the Narbis glasses while doing any type of brain-engaging activity - reading, studying, or watching a movie.

Narbis also has three training settings: focus (for attention), calm focus (for relaxation), and performance (for concentration and work performance).

5. Cost and Value Analysis

When it comes to cost, Mendi takes the lead. It is more affordable than Narbis, as it costs only $299, while the Narbis glasses amount to $690.

The Mendi headband also comes with lifetime app access for no additional fees - besides the neurofeedback game, the app is filled with resources about neurofeedback and allows you to track your mood. It's also worth noting that the Mendi headband can be used by multiple people as long as each has their own app account.

Narbis, though higher in price, offers unique value through advanced EEG technology and a visual feedback system. The investment might be justified for users seeking detailed brainwave analysis and those who prefer the discreet feedback of smart glasses.

6. Benefits

The benefits of neurofeedback have been the subject of thousands of research papers! This brain training technique may be a powerful tool for managing various mental health conditions, not to mention improving overall well-being.

Nonetheless, since neither Mendi nor Narbis is a medical device, they are only recommended for wellness goals.

As such, here are the benefits you may enjoy after using Mendi:

• Improved focus

• Better sleep quality

• Mood regulation

• Mental well-being

• Improved stress resilience

• Feeling calmer and more relaxed

• Improved mental clarity

• Cognitive enhancement

And here are the benefits you may enjoy after using Narbis:

• Improved focus and longer attention span

• Relaxation

• Improved emotion regulation

• Reduced stress

• Cognitive enhancement

• Improved well-being

7. Scientific Evidence

The efficacy of both fNIRS and EEG neurofeedback technologies employed by Mendi and Narbis is supported by solid scientific evidence. Numerous studies demonstrate the benefits of neurofeedback training in improving cognitive functions and mental health well-being.

Additionally, both the Mendi and the Narbis devices are backed by science, having been reviewed and tested by numerous neuroscience and other field-related specialists. There is also a Mendi study you can read to make an informed decision, which can be found here.

Therefore, robust scientific backing and expert endorsements make Mendi and Narbis reliable options for anyone looking to incorporate neurofeedback into their mental health and cognitive enhancement regimen.

8. Safety and Side Effects

Safety is a paramount concern with any wellness device, and both Mendi and Narbis are designed with user safety in mind. Mendi’s fNIRS and Narbis' EEG are non-invasive and considered safe for home use, with minimal reported side effects.

However, some users do report short-term side effects, like headaches or dizziness, but these are generally rare and resolve within 24-48 hours.

Another crucial thing to note is that Narbis advises users to avoid using their glasses if they're taking any type of medication. It is also not recommended to use Narbis if you have any diagnosed medical condition or a history of injury or seizures since it relies on visual stimuli.

This is also valid for Mendi - if you've been diagnosed with or suspect you may have a mental health condition, you should consult a healthcare professional before using the Mendi headband.

Both Mendi and Narbis are wellness devices and should not be used to diagnose, treat, or prevent any medical conditions.

Choosing Between Mendi and Narbis

Choosing between Mendi and Narbis ultimately depends on your specific needs and preferences. Go for Mendi if you:

• Want to try a novel neurofeedback device that uses fNIRS technology instead of EEG.

• Want a gamified neurofeedback experience.

• Want to enhance cognitive performance and improve focus, stress management skills, emotion regulation, and sleep quality.

• Are a beginner in neurofeedback training.

• Are looking for a more affordable device.

Alternatively, choose Narbis if you:

• Don't want to commit to various dedicated games, as the glasses can be used while reading or watching a movie.

• Have a higher budget.

• Prioritize enhanced focus and relaxation.

• Want to improve overall well-being and optimize brain function.

Both Mendi and Narbis can be used by children, teens, and adults.

Final Thoughts

In summary, both Mendi and Narbis offer unique and effective ways to enhance brain function and mental well-being through neurofeedback training.

Mendi’s fNIRS technology and interactive feedback make it a user-friendly and engaging option, while Narbis’ EEG-based system and visual feedback through smart glasses provide a detailed analysis of brainwave activity.

The benefits of these devices are supported by robust scientific evidence, with numerous studies and expert endorsements highlighting their efficacy. Whether you choose Mendi or Narbis, you can expect improvements in focus, cognitive performance, and overall mental health.

Ultimately, the choice depends on your personal preferences and goals. If you think the Mendi device is right for you, order it now!

Frequently Asked Questions

Are Mendi and Narbis safe to use at home?

Yes, Mendi and Narbis are safe for home use as they utilize non-invasive technologies. However, if you have been diagnosed with a mental health condition or suspect you may have one, it's best to talk to your doctor before using Mendi or Narbis.

How do Mendi and Narbis provide feedback during training sessions?

Mendi delivers real-time feedback via an interactive, game-based app, while Narbis employs smart glasses that tint when the user loses focus.

What are the main differences between Mendi and Narbis?

The main difference between Mendi and Narbis lies in their technology; Mendi employs functional near-infrared spectroscopy (fNIRS) for blood flow and oxygenation measurement, while Narbis utilizes electroencephalography (EEG) to analyze electrical activity and brainwave patterns. Another difference is that the Mendi device is a headband, while the Narbis device is a pair of glasses.

Is Mendi neurofeedback legit?

Yes, Mendi neurofeedback is legit as it uses functional near-infrared spectroscopy (fNIRS) neurofeedback technology that has been extensively studied and used for research and clinical purposes.

Can these devices be used as medical treatments?

Mendi and Narbis are not suitable for medical treatments; they are wellness devices aimed to improve cognitive function and mental well-being. They do not replace professional medical care.