The Mendi Headset
The Mendi Headset
Achieve greater focus, clearer thinking and more self-control.
Mendi helps you train your prefrontal cortex with real-time neurofeedback to strengthen focus, overcome stress and help you get more out of life. Just 10 minutes a day for lasting change you can feel.
- Train the brain functions behind focus, clarity and self-control
- See your brain respond in real time in the app
- Improve decision-making and strengthen emotional regulation.
- Users experienced 42% better sustained focus after 8 weeks
Based on self-reported in-app data from ~2,000 Mendi users who completed 3+ check-ins. Sustained focus was measured using the validated Attentional Control Scale. No control group. Individual results may vary.
- No monthly fees
- No subscriptions
- Invest once, use for life
- Share with unlimited users and family members
60-Day Money Back Guarantee. More Control, or Your Money Back
Use Mendi for 60 days. If you don't feel a meaningful difference in your focus, follow-through, or mental clarity, send it back for a full refund.
Less distraction, more follow-through
I can tell you from my experience that it has helped reduce distractibility for me and also my follow through rate on completing tasks has increased. I generally feel for me that it has been easier to mind my mind and stay within the guard rails of productive focus with more resiliency.
Focused and relaxed with ADHD
I strongly recommend using Mendi. Having ADHD, I really feel more focused but also more relaxed after 10 min with Mendi. Have used it for several months and it gives consistent result.
I stopped biting my nails
After using the device for roughly 3 weeks I stopped biting my nails. Shoulder and neck area that would tense up in some situations would stay relaxed.
My body craves it now
I have been using Mendi for about a year and a half now. It's almost like my body craves it now. The #1 improvement I noticed right away is an increased ability to push through hard workouts. If I do a Mendi session just before a run or a push up workout I can run longer and do more pushups without my mind fighting me.
Easier conversations
I am very happy with my Mendi. I began using it in April. I believe it has helped my concentration and focus. Growing up as an introvert, it has helped me with conversations and dialogue.
Skeptic turned believer
Was skeptical at first, but after consistent training, I've seen a noticeable improvement in my mental clarity and ability to stay on task. Highly recommend!
Like chugging a virtual coffee
Mendi has been a game-changer for me. I usually do a session before my language course, a 10-minuter feels like chugging a virtual coffee.
Not just another device
Mendi helped me control my emotions, and deal with anxiety, as well as significantly reduced my level of stress. I noticed a change already after 4 weeks of using it on a daily basis.
Increased relaxation and focus
Mendi is an excellent tool! I have tried many different types of EEG/braintech/neurotech but Mendi is my favorite.
I noticed the day I skipped it
Today I've had my least productive day of the week and have just realized I didn't have time to do my Mendi practice. I don't think this is a coincidence.
Life changing
I have been using the device for just over a week and I'm starting to feel more awake and focused with a greater sense of control and calmness. I am delighted with this piece of tech.
I can feel the changes in my brain
I can feel the changes in my brain. I love Mendi! It's a remarkable technology. If you're considering buying it, just do it! Whether you have done traditional neurofeedback or not, this is a pivotal tool.
Boost Focus
Lower Stress
Improve Wellbeing
Better Sleep
What's included
What's included
- Mendi headset
- USB-C charging cable
- Full access to the free Mendi app for iOS and Android, no subscription required
- 1-year hardware warranty
- 60-day money-back guarantee
Tech specs
Tech specs
Technology: fNIRS (blood flow and oxygenation in the prefrontal cortex)
Connectivity: Bluetooth, iOS and Android
Battery: up to 5 hours per charge (about 60 sessions)
Charging: USB-C
Fit: one size fits all, lightweight
Recommended age: 5+
Made in: Sweden
Used in research at
Experts Recommend Mendi
Mendi is bringing historically expensive brain imaging equipment directly to the public, allowing for at-home neurofeedback training. This is a company that adheres closely to the science, and I respect that tremendously.
Dr. Ben Rein, PHD
Neuroscientist, Science Communicator, Stanford University
Neurofeedback brain training has been proven to help with a wide range of cognitive functions, from focus and stress, to sleep and mood disorders. Perhaps most fundamentally, consistent training can be used by anyone to improve their brain’s physical health.
Dr. Lauren Silbert, PhD
Neuroscientist, Princeton University
A good blood flow in the PFC (prefrontal cortex region of your brain) has been correlated with general better health, memory and high performance.
Dr. Francesco Bez, PhD
Neuroscientist, Lund University
I review a lot of different devices on Techforpsych and you might be wondering if the Mendi is the right choice for you. I would say this is the best device out there for focus overall.
Dr. Cody Rall, M.D.
Fmr. US Navy Psychiatrist, Neurotech Expert, Founder of Tech For Psych
Some people may be skeptical now, but in 5-10 years no one will be.
Dr. Alan Pope, PHD
Distinguished Research Associate, NASA
What we know about the brain is that 'if you do not use it, you will lose it'. Brain training for astronauts will be a key factor for future space travel, which is why NASA is sponsoring the research with Mendi.
Terry Rector
Senior Project Leader, The Aerospace Corporation
Tired of fighting your own brain?
If any of these sound familiar, Mendi was built for you.
I struggle to stay focused
Attention drifts when you need it most. Mendi trains your ability to activate and hold focus.
I know what to do. I just can't get my brain to do it
Starting, staying with and finishing things feels harder than it should.
I have ADHD / I'm neurodivergent
Many people in the Mendi community use it as part of their focus-training routine.
I feel scattered or overwhelmed
You want more control over your attention and how you respond.
I want to stay mentally sharp
You want to actively train your brain, not just react when something declines.
I react before I think
You want to pause, respond with intention, and regulate your emotions more easily.
Mendi is the brain trainer that helps you take back control
Stay focused for longer
Filter out distractions and maintain concentration on tasks or conversations.
Start and follow through
Less friction getting yourself going. Stick with something once you've started.
Think and decide more clearly
Cut through mental noise and brain fog. Improve your ability to analyze situations and make sound judgments.
Handle stress better
Maintain composure in challenging situations and manage stress more effectively.
Feel less scattered
Build more control over where your attention goes.
Respond with more control
React less impulsively and regulate your emotions more easily.
Your brain controls the game
Focus is the only controller.
How to use
Put on Mendi
Position the headband comfortably on your forehead. Sensors auto-calibrate in seconds.
Train through play
Open the Mendi app and start a training session. As you focus, oxygen-rich blood flow in your PFC increases, and each game responds in real time to your focus.
Watch your score
After each session you'll receive a focus score. The more activated your PFC, the higher it goes. Train 10 minutes a day and your scores climb.
Put on Mendi
Position the headband comfortably on your forehead. Sensors auto-calibrate in seconds.
Train through play
Open the Mendi app and start a training session. As you focus, oxygen-rich blood flow in your PFC increases, and each game responds in real time to your focus.
Watch your score
After each session you'll receive a focus score. The more activated your PFC, the higher it goes. Train 10 minutes a day and your scores climb.
How training with Mendi makes a difference.
The strongest result from eight weeks of Mendi training: a 42% improvement in sustained focus. Users also reported improvements in perceived stress, mood and wellbeing.
Improvement in sustained focus
42%
Reduction in perceived stress
31%
Improved mood and emotional balance
16%
Better general wellbeing
51%
A peer-reviewed study validated the Mendi fNIRS system as an accurate measure of prefrontal activity, so the focus signal you train on is real. This study confirms what the sensor measures. It is not a study of the 42% result above. (Boere, Hecker & Krigolson, 2024, International Journal of Psychophysiology)
Results are based on aggregated in-app data and self-reported outcomes from users who completed eight weeks of Mendi neurofeedback training. Improvements were measured using validated scales (ACS, WHO-5, PSS-10, GAD-7, PHQ-9). There was no control group and individual results may vary.
How 10 minutes of training rewires your brain
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Measures blood flow and oxygenation in the brain to track attention, decision-making, and executive function in real time.
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The app converts your brain signal into a live training game. When your prefrontal cortex activates, the game responds, creating a direct feedback loop that teaches your brain to focus on command.
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Repeated training strengthens the neural pathways behind focus over time. The more you train, the more automatic and effortless concentration becomes, even off the device.
See what your brain is doing in real time
Sensor Type
fNIRS
Functional Near-Infrared Spectroscopy — not EEG
Target Region
Prefrontal Cortex
The brain's focus and decision-making center
Signal
Real-Time Blood Flow
Oxygenation measured continuously during session
Accuracy
Lab-Grade Signal
Validated against BIOPAC fNIR100 lab equipment
Make it yours
Make the session yours.
Set your session length, pick a backdrop, add music from Brain.fm, switch on gentle haptics. Small stuff, but it's what gets you back in the chair tomorrow.
Your progress
Every session, a Mendi Score.
It reads your brain activity, how long you held focus, and your oxygenation, then rolls it into one number. Track it session to session and watch your baseline move.
Your goals
Track what you're actually after.
Choose what you're working on, whether that's attention, stress, or just feeling steadier. The app sets a baseline from session one, and every eight sessions a quick re-test shows the change.
Make it yours
Make the session yours.
Set your session length, pick a backdrop, add music from Brain.fm, switch on gentle haptics. Small stuff, but it's what gets you back in the chair tomorrow.
Your progress
Every session, a Mendi Score.
It reads your brain activity, how long you held focus, and your oxygenation, then rolls it into one number. Track it session to session and watch your baseline move.
Your goals
Track what you're actually after.
Choose what you're working on, whether that's attention, stress, or just feeling steadier. The app sets a baseline from session one, and every eight sessions a quick re-test shows the change.
Build a Habit of Reflection
Your Progress, Visualized
Grow with Intention
Trusted by 72,000+ users
2.5M+ training sessions completed
What our community says
What to expect in 60 days of brain training:
60-Day Money-Back Guarantee
Getting started
Set up, calibrate, and complete your first neurofeedback session. See your brain activity in real time from day one.
Your brain starts responding
You begin noticing how your prefrontal cortex activates during sessions. The app starts tracking your baseline and early progress signals.
Many users report measurable improvements
Focus scores climb. Many users report feeling sharper in daily life, and the app shows week-over-week movement in your key metrics.
Many users report lasting change
Users report meaningful improvements in focus, stress resilience and mental clarity after eight weeks of consistent training. Individual results vary.
Frequently Asked Questions
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The Mendi headset, a USB-C charging cable, and free access to the Mendi companion app on iOS and Android.
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Mendi comes with a 60-day money-back guarantee from the date of receipt. If you are not satisfied, return it for a full refund. The device is also covered by a one-year hardware warranty, which provides a replacement if it malfunctions or breaks under normal use.
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Mendi works with iOS and Android smartphones via Bluetooth.
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No. The Mendi app is free with no ongoing subscription fees. You pay once for the device and get full access to all training features.
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Mendi uses fNIRS (functional near-infrared spectroscopy) to measure blood flow and oxygenation in your prefrontal cortex in real time. That signal feeds into a 10-minute daily game where you train your brain to activate and sustain focus. The more you train, the stronger and more consistent that activation becomes.
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Mendi trains your ability to activate and sustain activity in your prefrontal cortex, the brain region involved in attention, executive function, impulse control, decision-making, and emotional regulation. In practice, you are training the skill of directing your focus and holding it there, with real-time feedback showing you how you are doing.
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Yes. Many people in the Mendi community with ADHD or who identify as neurodivergent use Mendi as part of their focus-training routine. Mendi is not a medical device and is not intended to diagnose, treat, cure or prevent any disease or condition. If you have, or suspect you may have, a medical condition, consult your healthcare provider.
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Executive function skills like starting tasks, staying with them, and following through rely on the prefrontal cortex, which is exactly the region Mendi measures and trains. Consistent training strengthens your ability to activate this region on demand. Mendi is a wellness training tool, not a medical treatment, and individual results vary.
Mendi is not a medical device and is not intended to diagnose, treat, cure or prevent any disease or condition. If you have, or suspect you may have, a medical condition, consult your healthcare provider. -
Most people start to feel it clicking in over the first several weeks of regular training. It’s a trained skill, not an instant fix. Consistency (10 minutes a day) is what moves it. Results vary by individual and training frequency.
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Yes, Mendi is recommended for ages 5 and up. The headband is one-size-fits-all and the app supports multiple profiles, so kids and parents can each train and track their own progress on one device.
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Yes. The Mendi app supports multiple user profiles, so the whole family can train on one device. Each person tracks their own progress separately.
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No. Mendi is not a medical device and is not intended to diagnose, treat, cure or prevent any disease or condition. If you have, or suspect you may have, a medical condition, consult your healthcare provider.
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Mendi is suitable for all age groups, though we recommend it for ages 5 and up. It is particularly helpful for those seeking to improve focus, emotion regulation, and working memory as part of a healthy brain training routine.Mendi is not a medical device and is not intended to diagnose, treat, cure or prevent any disease or condition. If you have, or suspect you may have, a medical condition, consult your healthcare provider.
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Yes. Mendi sits on your forehead and uses near-infrared light to read brain activity. No electrical stimulation, no needles, no discomfort. The same fNIRS technology has been used safely in neuroscience research for over 40 years.
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New users should gradually adjust their neurofeedback training to suit their individual needs. During the first week, we recommend three 5-minute sessions to become familiar with the app and headband.
Over time, you can increase session length. Aim for 4–5 sessions per week, gradually extending them to 10 or 15 minutes as you progress, until you feel comfortable with daily sessions. Be mindful of mental fatigue, and prioritize quality over quantity by scheduling sessions under calm conditions for the most accurate feedback. -
Get started in less than 30 sec:
- Put on your Mendi headband and open the Mendi brain training app. Make sure it fits snugly on your forehead to measure brain activity accurately.
- Find a dim spot to avoid bright lights, this helps ensure a clearer signal.
- Select your training duration and settle in. Relax and focus on the ball, aim to make it rise. Each time a star appears, think of it as instant feedback that you're “doing it right.”
Bonus Tip: Try a quick session before work, studying, or sports. It’s a great way to boost focus and mental sharpness!
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Meditation apps guide you through a practice but cannot measure what your brain is actually doing. Mendi reads your prefrontal cortex activity in real time and gives you objective feedback on your performance. You are not just following instructions. You are training a measurable skill.
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Yes. Mendi is built on 40+ years of peer-reviewed fNIRS neurofeedback research. Independent researchers at Stockholm University validated Mendi's sensor accuracy against BIOPAC fNIR100 lab equipment. Published studies on fNIRS neurofeedback training show measurable improvements in sustained focus, working memory, and stress resilience.
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Technology: fNIRS (measures blood flow and oxygenation in the prefrontal cortex)
Connectivity: Bluetooth, iOS and Android
Battery: up to 5 hours per charge (about 60 sessions)
Charging: USB-C
Fit: one size fits all, lightweight
Recommended age: 5+
Warranty: 1 year
Made in: Sweden