Nafsy

HAPTIC WEARABLE · STRESS REGULATION

Wear your calm.

Nafsy is a wearable that helps your body find calm when stress takes over. Designed for real life.

A haptic bracelet for real-time stress relief — through breath, rhythm and touch.

Join the waitlistSee how it works

Prototype in development · Backed by science · Beta opening 2026

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A leather bracelet.

Discreet, premium, screen-free. Worn like jewelry.

Calms your body.

Sends a gentle haptic rhythm to your wrist to ease stress in the moment.

Through touch.

Slow vibrations guide your breath and help your nervous system settle.

Nafsy wearable bracelet portrait

FOR THE MOMENTS YOU CAN'T EXPLAIN

A quiet companion. Worn, not noticed.

Stress doesn't always come with words. Sometimes it's just a tightness, a racing pulse, a feeling you can't quite name. Nafsy is there for those moments.

Before an exam, when your heart races before you've even started.

In a crowded room, when you need to stay composed.

Late at night, when your mind won't slow down.

In the middle of a day that's moving too fast.

STRESS ISN'T ALWAYS LOUD

It builds quietly. Your body feels it first.

Racing heart. Tight chest. Restless thoughts. It's not in your head. It's in your nervous system. Nafsy helps you come back to yourself.

Nafsy bracelet sunset macro close up

Made to be worn every day.

A wearable that looks like a bracelet, not a device.

Discreet by design

No screen, no lights, no notifications. Nafsy looks like a premium leather bracelet — because that's exactly what it is. Calm shouldn't announce itself.

Silent haptic rhythm

Multi-day battery

Worn like jewelry

Nafsy wearable on wrist
The Nafsy bracelet worn on a wrist, emitting a gentle haptic vibration wave

How Nafsy works.

Three steps. No effort required.

Sense

The bracelet senses the body signals linked to rising stress.

Signal

A slow, breath-paced haptic wave begins — gentle and silent.

Settle

Your breath follows the rhythm. Your body returns to calm.

Nafsy bracelet on linen
RESEARCH-INFORMED

Backed by a real scientific committee

Nafsy's protocol is developed with input from a multidisciplinary scientific committee:

EK

Étienne Koechlin

Neuroscience researcher — CNRS / ENS Ulm

A

Anonymous

Cardiologist — Specializing in HRV (heart rate variability)

RE

Rania El Andaloussi

Pharmacist — neurochemical regulation

DH

Dr. Hwang

Acupuncture physician — somatic and autonomic regulation

KL

Khalid Lahbabi

Strategic Advisor — Corporate Partnerships & Workplace Adoption

EK

Eric Konieczny

Technical Advisor — Electronics engineering educator

The V1 protocol has been tested in a randomized, intra-subject study (12–20 participants, 3 haptic stimulation conditions).

4–6 bpmBreathing rate
<100msHaptic latency
MinutesTime to calm
HRVAutonomic balance

Nafsy is inspired by published research in psychophysiology. It is a wellness wearable, not a medical device.

Early traction

Signals from the people who need this most.

282survey responses
77%of frequently-stressed respondents ready (or maybe ready) to pay
55waitlist signups in 2 weeks
17qualitative interviews conducted

What people told us

What might hold me back is having to wear yet another bracelet — I already wear one for recovery tracking.

Director, M&A, international investment bank

In investment banking, stress is somewhat normalized — the solution needs to avoid stigma and stay very discreet.

Analyst, M&A, international investment bank

I have an Apple Watch, but I took it off. The 'Breathe' notifications always came at the wrong moment — it annoyed me more than anything.

Consultant

Scientific credibility is essential, especially for health professionals like me.

Pharmacist

My ideal solution would be a delicate piece of jewelry — an elegant bracelet — that stays completely silent to others.

Law student

The main barrier would be the price-to-benefit ratio, especially for someone who isn't very stressed.

Veterinarian
Three people in beige clothing in a quiet field representing the Nafsy community

OUR VISION

Calm should be something you can wear.

Nafsy was born from a simple idea — that the body often knows before the mind. We're building a wearable that helps people return to calm, quietly, in the moments that matter most. No screens. No noise. Just a gentle rhythm you can carry with you.

Founding team

I

Ines

Founder & CEO — ESSEC

Nafsy started from watching the stress on the trading floor during her internship at Société Générale, and asking why no one had built something to help with it in the moment.

RK

Rayan Khalil

Co-founder & CTO — ESIEA
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Hardware lead

Actively hiring

For organizations

Support an early testing cohort.

We're looking for early partners — schools, companies, foundations, incubators — to help fund prototype development and user testing around body-first stress regulation.

What pilot sponsors receive

Anonymized user insight report

Partner mention on the website

Future prototype demo access

Priority conversation with the founder

Founding access

Help build the first Nafsy prototype.

Reserve early access and support the development of a body-first stress regulation bracelet and app.

Join the waitlistFounding access opening soon. Join the waitlist to be notified first.

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