'amofit S' is a wellness device worn like a necklace that improves sleep, stress, and anxiety. This device generates and delivers mild electromagnetic signals to the chest branch of the vagus nerve for stimulation. The cVES (cervicothoracic vagus electromagnetic stimulation) applied to 'amofit S' is a unique neuromodulation technology that is directly involved in the regulation of the autonomic nervous system by stimulating the cardiac branch of the vagus nerve and activating the vagal tone and parasympathetic nervous system. cVES is a non-contact neuromodulation technology with 9-inch radius of effective range. In addition, in the first clinical trial that we conducted, we obtained a clinical result in which the activity of the parasympathetic nervous system increased by more than 275% within 24 hours.
amofit S (amo-lab.com) has 130 customer reviews on Five Star Index, with an average rating of 3.9 out of 5.
Also known as
amo-lab.com
Website
amo-lab.com
Category
Salons & Clinics
Location
Lewes, Delaware
Listed on Five Star Index
2026
About these reviews
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The company replied to 85% of reviews.
Latest
Most recent review: October 2026.
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This is a great device that actually works with little or no signs of its presence. Have been using it for well over a month and the sleep schedule is significantly better. Not yet had a chance to test its focus feature. I wish the buttons were mildly raised/tactile because my black amofit is really not visible in the dim light. The clip on the unit also needs a slight outward curve on its end to ease the process of slipping it on to a thin cloth/outfit.
Response from amofit SFeb 20, 2026
Hi ArunR,
Thank you so much for your wonderful review! We are thrilled to hear that amofit S has significantly improved your sleep schedule over the past month. It is great to know the device is making a real difference in your daily life.
We sincerely appreciate your constructive feedback regarding the tactile feel of the buttons and the design of the clip. We understand how these details can impact the user experience, especially in dim light or when attaching the device to different outfits. We have shared your suggestions with our dedicated team to consider for future improvements and next-generation models.
We hope you find the Focus mode just as beneficial once you have a chance to test it! If you have any further questions or more insights to share, please feel free to reach out to us anytime.
Thank you again.
MP
Mike P.
I didn't get the big increase in deep…
I didn't get the big increase in deep sleep that I'd hoped for, but I do believe my HRV has improved since I started using it.
Response from amofit SFeb 17, 2026
Hi Mike Pelletier,
Thank you for your review! We’re glad to hear that you’ve noticed a consistent improvement in your HRV. This is a fantastic indicator that amofit S is effectively supporting your autonomic nervous system and overall stress resilience.
While the change in deep sleep wasn't as significant as you hoped, the positive shift in your HRV is a vital sign of long-term wellness. We truly appreciate your continued support and for making amofit S a part of your daily routine.
Thank you again
GE
Geraldine
Satisfied Customer
My amofit S arrived earlier than it said so really pleased with delivery. The device is easy to use although one time I couldn't switch it off and it ran until the battery ran out. After that it was ok and I could switch it off again.
I have found that I have noticed an improvement in mood but I can only tolerate 5 minute sessions. If I go above this my sleep is worse and I can feel 'wired'. I do have a very sensitive system so less is always more for me. All in all I'm definitely finding it helpful.
Response from amofit SJan 27, 2026
Hi Geraldine,
Thank you very much for sharing your positive experience with us. We are delighted to hear that amofit S arrived earlier than expected and that you are already noticing an improvement in your mood.
1.
Regarding the issue when you couldn't switch off the device, we believe the Lock Function might have been activated on your device, causing the buttons to become unresponsive (frozen). As shown on Page 4 of the User Manual, there are instructions for this feature. You can also watch this video for a visual guide: https://youtu.be/7I0fkTNMD2Q (The first 5 seconds demonstrate the Lock Function).
The Lock Function is particularly helpful while sleeping, as it prevents the buttons from being operated unintentionally.
Instructions for Lock Function:
1. Please first turn on the device.
2. When the device is operating, 'quickly' tap the C area (Logo button for power on&off) 3 times in a row.
3. The LED will blink in red twice, indicating that it is locked.
4. If you tap the C area 3 times in a row again, LED will blink in red once, indicating that it is unlocked.
Tip - Some users had difficulty in activating these functions if they pressed 3 times hard and slowly. Therefore, it will be easier to set this up by quickly tapping the button three times in a row.
Just for your reference, you can also connect your device to a charger and then disconnect it again to force the device switch off.
2.
We also appreciate you sharing your experience regarding the session length. We are sorry to hear that you find it difficult to use for more than 5 minutes at a time.
When using the device for the first time, there have been cases where the users experience heart palpitation or mild headaches. This is experienced by less than 1% of users as the body adapts to external electromagnetic signals, and it has been reported that this phenomenon disappears after stopping use of the device for 1-2 days and then increasing the usage time in 30-minute increments each day. The above reactions are known to appear mainly in people with sensitive health condition, serious illnesses, or in elderly users. Your symptoms are assumed to be the body's internal reaction similar to those in the cases above.
In your case, we recommend continuing to use the device for less than 5 minutes a day for the next few days, as you are currently doing. Once you feel comfortable, you may try increasing the usage time by just 1 minute increments each day. For example, if you feel fine after adding 1 minute, you can add another minute the following day and so on.
If you experience any discomfort or have further questions, please do not hesitate to contact us at [email protected]. We are always here to help you achieve the best results with amofit S.
Thank you very much again for your support.
KR
kristofer
Worked well initially/seemingly
Sleep deep. Glad I bought
Response from amofit SJan 2, 2026
Hi kristofer,
Thank you for sharing your experience with us. We’re glad to hear that you’ve been enjoying deeper sleep and that amofit S has been helpful so far. If you have any questions or need support as you continue using the device, please don’t hesitate to reach out.
Thank you again!
LM
Laurent M.
« C’est très intéressant quand on dort…
« C’est très intéressant quand on dort mal, car cela permet malgré tout de reposer le système nerveux. Néanmoins, il arrive parfois qu’il se mette en mode concentration pendant la nuit… »
Response from amofit SNov 4, 2025
Hi Laurent Man,
Thank you very much for sharing your experience. We're glad to hear that the device has helped you relax your nervous system and improve rest even on nights when sleep is difficult.
That said, we sincerely apologize for the inconvenience caused by the mode switching issue during the night.
In this case, Lock Function can be helpful because this will allow you to lock the buttons so that the buttons aren't operated unintentionally during sleep.
As you can see on Page 4 of the User Manual, there are instructions for two features, including Lock Function. Also, you may watch this video that shows how to operate the two features.
https://youtu.be/7I0fkTNMD2Q
*** The first 5 seconds of the video shows Lock Function.
=Instructions for Lock Function=
1. Please first turn on the device.
2. When the device is operating, 'quickly' tap the C area (Logo button for power on&off) 3 times in a row.
3. The LED will blink in red twice, indicating that it is locked.
4. If you tap the C area 3 times in a row again, LED will blink in red once, indicating that it is unlocked.
Tip - Some users had difficulty in activating these functions if they pressed 3 times hard and slowly. Therefore, it will be easier to set this up by quickly tapping the button three times in a row.
We hope you will find this instruction helpful. Should you have any other questions or concerns in the future, please don't hesitate to reach out. Thank you again!
RP
ralph P.
Customer Service
While we haven’t seen any results yet, customer service has been very good. Amo Lab replaced the broken necklaces and extended the trial period money back guarantee. Hoping we don’t have to return them.
Response from amofit SOct 8, 2025
Hi Ralph Pilla,
Thank you so much for your kind review and for sharing your experience. We truly appreciate your patience and understanding during the process, and we’re glad to know that our support team could assist you with the replacements and trial extension.
We genuinely hope that you’ll begin to notice positive results soon, and please don’t hesitate to reach out if you have any questions or need further assistance along the way.
Thank you again.
MF
Michael F.
I have noticed some differences in my…
I have noticed some differences in my anxiety and motivation but still
experimenting with it.
Response from amofit SSep 24, 2025
Hi Michael Fraklin,
Thank you very much for sharing your experience!
We are glad to hear that you have already noticed some positive changes in your anxiety and motivation. Please feel free to keep experimenting and let us know how things go — our team is always happy to support you along the way.
Thank you!
DP
Deborah P.
I really don't know yet although its…
I really don't know yet although its been a month. I need more time. Maybe Im a tough case. Thanks deborah
Response from amofit SSep 24, 2025
Hi Deborah Pryor,
Thank you very much for sharing your review. We are sorry to hear that you have not noticed an improvement so far.
For your reference, we have also included this additional information below as part of our reply to our most recent email conversation:
According to our user experience and clinical studies, a small portion of users see results after 6-7 weeks of use. Therefore, if you are interested, we can extend your trial period by an additional 30 days so that you can try it for a bit longer. You may also consider using the device while sleeping at night.
Our recommended daily use for Calm mode is 1-2 sessions per day; however, there is no issue with using it for longer periods each day. Many customers who experience significant benefits use the device for more than 3 sessions daily in hopes of achieving greater results.
We recommend 1 session (3 hours) of Calm mode during the day, and another session before going to bed in the evening. If you have sufficient time, you may also use an additional session either during sleep or in the daytime. Many users have reported higher benefits when using the device while sleeping at night.
Should you have any other questions or concerns in the future, please do not hesitate to reach out.
Thank you again.