Detect health problems while they are still reversible.

Vitro tracks HRV, oxygenation, and recovery to reveal invisible imbalances. Unlike step counters, Vitro detects cardiovascular and metabolic stress before you feel the symptoms.

DISCOVER

MEDICAL-GRADE INSIGHTS

Track your biology, not just your steps.

You take care of yourself, but some signs of wear on your body stay invisible. Vitro reveals the poor recovery, the drop in heart rate variability and the silent stress that accelerate aging — long before the first symptoms appear.

Cellular recovery and repair with the Fitmo Vitro band

CELLULAR RECOVERY

Cellular recovery & repair

Optimize your body's ability to recover, recharge and fight cellular aging.

Early detection of chronic fatigue signals with the Fitmo Vitro band

EARLY DETECTION

Spot the signs before the symptoms

Identify health imbalances early and act before they become serious.

Biological age improved by 5.2 years with the Fitmo Vitro band

BIOLOGICAL LONGEVITY

Add years to your life

Build the habits that keep you stronger, sharper and healthier for decades to come.

Vitro and longevity
LIVE LONGER

Members gain an average of +6.8 years of extra lifespan from healthier habits

Fitmo members use real health data to improve sleep, reduce stress, and build healthier routines that compound over time.

Small improvements in daily habits can dramatically change your long-term health trajectory.

HEART RATE VARIABILITY

Measure your true resilience, day after day.

Your heart rate variability reveals the real state of your autonomic nervous system. The higher it is, the better your body handles stress, recovers and preserves its energy over time.

Vitro worn on the wrist
HRV score 86
Vitro app — Heart rate variability
ENERGY & VITALITY

Understand what preserves — or drains — your energy.

Track how your energy evolves over 24 hours, 7 days and 30 days. Spot the habits that build your vitality, and the ones that quietly drain it. So you can move through the years keeping your strength, your clarity and your drive.

Daily trend
Vitality trend
Cardiovascular tracking
Energy optimization
EARLY SIGNALS

Catch the signals your body sends you every day.

By continuously tracking your biometric data — heart rate, blood oxygen, respiratory rate, cardiac load — Vitro helps you observe the physiological shifts that could signal an imbalance. So you can act early, and with real understanding.

Everyday observation
Blood oxygen
Recovery
Body awareness
HEART RATE VARIABILITY:

The silent barometer of your resilience.

Heart rate variability
What it is: Heart rate variability (HRV) measures the tiny variations between each of your heartbeats. The more that gap varies, the better your nervous system adapts. It's one of the most reliable markers of your recovery capacity and your overall resilience.
The problem: With age, chronic stress and sleep debt, HRV declines silently. You feel it through fatigue, tension, poorer recovery — without ever being able to put a name on it.
The solution: By tracking your HRV every day, you identify the habits that degrade it and those that strengthen it. You take back control of your nervous system.
How it works: Vitro measures your HRV continuously through its optical sensors. Our app analyzes your trends over 24 hours, 7 days and 30 days, and gives you clear reference points without information overload.
Why it matters:
  • Spot the first signs of chronic stress before it settles in
  • Optimize your overnight recovery and your sleep quality
  • Preserve your physiological adaptability over the years
ENERGY & VITALITY:

The invisible fuel of your longevity.

Everyday energy
What it is: Your real energy level reflects your metabolism, your sleep, your recovery and your daily activity. It's what determines your ability to fully enjoy your life — today and twenty years from now.
The problem: With age, many accept declining energy as inevitable. It isn't — it's often the result of invisible habits quietly stacking up, year after year.
The solution: Measure, understand, adjust. By tracking how your energy evolves over time, you identify what truly gives you vitality — and what quietly takes it away.
How it works: Vitro cross-references your sleep data, your HRV, your activity and your recovery to give you a clear read on your energy level over 24 hours, 7 days and 30 days.
Why it matters:
  • Understand what gains you — or costs you — vitality
  • Adjust your pace before exhaustion, rather than after
  • Preserve your drive, your clarity and your strength year after year
EARLY SIGNALS:

Listen to what your body is trying to tell you.

Self-awareness
What it is: Your body sends faint signals long before an imbalance becomes visible: shifts in resting heart rate, drops in sleep quality, changes in respiratory rate, altered blood oxygen.
The problem: These signals go unnoticed in everyday life. We put them down to stress, tiredness, age — and by the time we notice, it's often later than we would have liked.
The solution: By continuously analyzing your biometric data, Vitro helps you observe physiological trends over time — the ones that deserve your attention before they become obvious.
How it works: Multi-LED sensors, built-in oximeter, continuous heart tracking, respiratory rate measurement. Our app brings it all together in a clear, calm read — without alarming you.
Why it matters:
  • Observe physiological shifts before the visible signs
  • Make informed decisions about your health day to day
  • Stay in control of your longevity trajectory

Trusted by people who understand their bodies.

Doctors, researchers and longevity experts use Vitro to see what step counters can't.

Dr. Marc Fontaine
Dr. Marc Fontaine Physician specializing in preventive medicine
PREVENTIVE MEDICINE REF. MP-2025-01
Thomas Berger
Thomas Berger Biohacker | Sustainable health entrepreneur
BIOHACKING REF. BH-2025-03
Dr. Claire Manceau
Dr. Claire Manceau Cellular aging researcher
RESEARCH | LONGEVITY REF. RC-2024-07

When my patients come in with 30 days of trends, we save a huge amount of time. This is the kind of tool I wish I could have recommended ten years ago.

Dr. Marc Fontaine | Preventive medicine
Sophie Leroux
Sophie Leroux Longevity expert | 20 years of research
LONGEVITY REF. LG-2025-02

Decline starts long before any visible symptoms. Observing your stress and your recovery day to day is prevention you can actually act on.

Dr. Claire Manceau | Cellular aging
Isabelle Morvan
Isabelle Morvan Naturopath | Active recovery specialist
NATUROPATHY REF. NT-2025-05

I recommend it to people who feel tired despite a healthy lifestyle. Recovery data says more than a long questionnaire ever could.

Sophie Leroux | Longevity expert

Vitro isn't a tracker like the others

Vitro shows you what's happening inside your body — not just how many steps you took.

Fitmo Vitro biometric band
VITRO VITRO
THE OTHERS THE OTHERS
Focus
Longevity, prevention, biological understanding
Performance, fitness, step counting
Subscription
None, one-time purchase
$7 to $35 per month
Battery life
10 to 15 days
1 to 3 days, daily charging
Screen
None, zero distraction
Always-on touchscreen
Data ownership
Your data is yours for life
Locked behind a subscription
Biometric measurements
HRV, ECG, SpO2, sleep, stress, recovery
Basic HRV only
AI analysis
Yes — analyzes your data and suggests concrete areas to improve
Basic pre-formatted insights
Price
$189 one-time, no recurring fees
$330 to $550 per year, for life

Anticipate, don't react

Most trackers recap what you did yesterday.

Vitro observes what's happening inside your body before you feel it.

An HRV shift that's settling in.

A drop in overnight SpO2.

Deep sleep quietly getting shorter.

VITRO VITRO:

"Vitro spots the invisible imbalances before your body sounds the alarm."

THE OTHERS THE OTHERS:

"They count steps. They measure calories. They ignore the faint signals."

Vitro is built to anticipate, not to recap.

Your health data should never be locked behind a subscription

VITRO VITRO:

One-time purchase. Free app for life. All your data accessible, exportable, and truly yours.

THE OTHERS THE OTHERS:

$7 to $35 per month, just to see your own data.

We believe your health data should never be locked behind a subscription. With Vitro, you own the band, and you own your data. Forever.

Real longevity metrics, not just a step counter

VITRO VITRO:

HRV, ECG, SpO2, deep sleep, recovery, stress, and 24-hour cardiovascular trends.

THE OTHERS THE OTHERS:

Steps, calories, basic sleep. HRV only on a premium subscription.

Vitro gives you the full picture, and shows you how your body really changes over time.

Continuous observation, not just averages

Other bands estimate your health from a handful of averages.

Vitro observes continuously, 24 hours a day.

An AI built into the app analyzes your data and tells you plainly where you stand, what to work on, and what the signals your body sends actually mean.

Estimates are useful.

But continuous observation is powerful.

EVERY CHOICE SHAPES YOUR FUTURE

Vitro helps you
make the right choices.

Powered by AI and machine learning, our app is a richer health experience that helps everyone build routines that create a virtuous circle.

Make smarter health choices

Understand how your daily habits affect your longevity, and get health reports built on your own data — for a truly holistic approach to your health.

Vitro health dashboard

Raise your energy levels

Track your data and get guidance to sustain your endurance, speed up your recovery and build resilience as you age — like a blade that sharpens with time instead of dulling.

Vitro heart rate variability

Stay ahead of illness

We continuously analyze your biometric data to catch the early signals of stress, weakened immunity, declining heart rate variability and slowed recovery — so you can act before illness sets in.

Vitro blood oxygen

Make time wait

No more guesswork. Run personalized analyses every day and every week, backed by cutting-edge science, to optimize your health, slow aging and extend your longevity.

Vitro personalized AI analysis
  • Comparatif Vitro Fitmo et autres bracelets connectés, sans abonnement [FR]
  • Vidéo de présentation du bracelet connecté Vitro Fitmo [FR]
  • Résultats des utilisateurs Vitro Fitmo : 94, 90 et 87 pour cent [FR]
  • Vitro Fitmo suit le sommeil, la récupération, le stress et l'énergie [FR]
  • Femme senior en gainage portant le bracelet Vitro Fitmo [FR]
  • Avis client Trustpilot 5 étoiles sur le bracelet Vitro Fitmo [FR]
  • Cinq raisons d'essayer le bracelet connecté Vitro Fitmo [FR]
  • Photos clients Fitmo, plus de 24 000 vies améliorées [FR]
  • Avis Trustpilot d'un coureur équipé du bracelet Vitro Fitmo [FR]
  • Femme portant le bracelet Vitro Fitmo au quotidien, confortable et léger [FR]
  • Vitro by Fitmo compared to other smart bands, no subscription [EN]
  • Vitro by Fitmo user results: 94, 90 and 87 percent [EN]
  • Vitro by Fitmo tracks sleep, recovery, stress and energy [EN]
  • Senior woman doing a plank while wearing the Vitro band by Fitmo [EN]
  • Five star Trustpilot review of the Vitro band by Fitmo [EN]
  • Five reasons to try the Vitro smart band by Fitmo [EN]
  • Fitmo customer photos, over 24,000 lives improved [EN]
  • Trustpilot review from a runner wearing the Vitro band by Fitmo [EN]
  • Woman wearing the Vitro band by Fitmo, comfortable for everyday wear [EN]
1 19
FLASH SALE
(1,225)

The Vitro

Understand your body's signals.
Price going up
249,90€ 189,00€

Vitro reveals the health trends you can't feel yet, showing you how each habit shapes your future. Our app gives you clear reference points to extend your energy, your resilience and your longevity.

Money-back guarantee 30-day money-back guarantee
Free worldwide shipping Free worldwide shipping
Free app for life Free app for life
Fast shipping Ships before —
Offer available
48H:00M:00S
Gifts not added to your order Valid until—
In Stock: Estimated
MONEY-BACK GUARANTEE 30 DAYS
Not convinced within 30 days? You get a full refund.

Try Vitro at your own pace. If the band isn't right for you, send it back and we'll refund you — no questions asked.

"For my patients aged 50 and over who want to understand their body without waiting for symptoms, Vitro is the tool I recommend."

"It doesn't replace medical care, but it surfaces trends that even an annual check-up won't reveal. Some patients adjusted their sleep, their stress, their recovery. Within a few weeks, they felt more present, sharper, more available for their family."

Dr Ana M.
Dr Ana M.
Cardiologist, cardiovascular prevention
Verified review

Understand your body before it warns you

Spot the signs of fatigue, invisible stress or insufficient recovery before they settle in for good. Vitro helps you anticipate, not react.

Age healthy, not just fit

The years that count aren't the ones you live, but the ones where you're fully present. Sleep, recovery, stress, heart rate variability — the real indicators of who you'll be in 10 years.

Continuous tracking, no intrusive notifications

Vitro continuously measures your essential data (heart rate, HRV, SpO₂, stress, sleep), 24/7, without interrupting you. You check your data whenever you want.

Find out what's really tiring you

Your fatigue has a cause. Vitro helps you find it before it becomes a limit in your daily life.

Wake up at the right moment

The vibrating alarm eases you out of sleep at the optimal point in your cycle. You start the day rested, not jolted awake.

Clear data, no excessive jargon

The Fitmo app turns complex measurements into simple, actionable indicators. You understand what's happening — no physiology degree required.

Vitro packs multi-LED biometric sensors (4 LEDs and 3 photodiodes) to continuously measure your essential health data. The app analyzes it to give you a clear view of your physiological state, day after day.

  • Heart rate (24/7 tracking)
  • Heart rate variability (HRV)
  • Electrocardiogram (ECG)
  • Blood oxygen (SpO₂)
  • Stress level and recovery
  • Sleep (duration, quality, stages: deep, light, REM)
  • Body temperature
  • Body composition (fat mass, lean mass, muscle, water, BMI)
  • Blood pressure trends (observational, not medical)
  • Blood sugar trends (observational, not medical)
  • Daily activity (steps, calories, movement)
  • Silent vibrating alarm
  • 10 to 15 days of battery life

From this data, the Fitmo app helps you visualize your trends over several weeks, identify what wears your body down and what restores it, and adjust your habits to age better — simply.

1

Wear it continuously

Vitro sits comfortably on your wrist, 24/7, without getting in the way. It automatically measures your essential data: sleep, recovery, stress, heart rate, HRV, blood oxygen and more.

2

Check your data whenever you want

Open the app to understand what's happening inside your body. Your indicators are laid out clearly, without information overload, so you can make better decisions day to day.

3

Understand what your body is trying to tell you

Week after week, the trends reveal what restores you and what wears you down. You no longer just endure your body. You understand it.

4

Protect the years that really count

Every adjustment counts. Every night you recover better, every signal you catch in time. That's energy preserved. Time gained to be there, fully, for the people you love.

"I'm really not comfortable with technology. But here, you put the band on, open the app, and everything is clear. Within 5 minutes I'd understood my sleep data."

Martine L. — Verified customer
More information

The Fitmo app is free for life for every Vitro owner. Works on iOS and Android, no subscription, no hidden features.

Check your data whenever you want, with no intrusive notifications and no pressure. You get access to all your biometric data: heart rate variability, sleep, stress, recovery, blood oxygen, plus your monthly and yearly trends.

Simple setup: everything is guided in the box. You'll find a clear step-by-step guide, plus QR codes and direct links to download the app and finish setup in a few minutes.

Vitro was created for the people who feel fatigue, stress or shifts in energy without understanding why.

Thanks to its biometric sensors, Vitro helps you identify your body's signals before imbalances settle in.

Not to judge you, or push you to perform. Just to give you a clear view of what shapes your health, day after day.

  1. Design: Built to be worn 24/7, day and night. Screen-free, discreet and comfortable.
  2. Bands included: Fabric band included + free silicone sport band. Adjustable buckle for comfortable wear, even at night.
  3. Water resistance: Built to handle sweat, splashes and hand washing. Remove before showering, bathing or swimming.
  4. Sensors: Multi-LED biometric sensors + accelerometer + skin thermometer. Accuracy validated in the lab.
  5. Battery life: 10 to 15 days depending on use. Full charge via the included USB cable.
  6. Connectivity: Bluetooth Low Energy. Automatic updates through the Fitmo app.
  7. App: Fitmo app free for life on iOS and Android. No subscription, no paid features.
  • Continuous heart rate
  • Heart rate variability (HRV)
  • Electrocardiogram (ECG)
  • Blood oxygen (SpO2)
  • Sleep stages and quality
  • Stress level and recovery
  • Activity and movement
  • Body temperature
  • Blood pressure trends
  • Blood sugar trends

Longevity means living longer in good health — not just living older. Vitro helps you:

  • Spot the faint signals before they become symptoms
  • Understand how your habits shape your aging
  • Adjust your daily life based on objective data

Vitro gives you a clear view of what shapes your health, day after day, so you can adjust your habits at your own pace and without pressure.

No, never. Vitro works entirely without a subscription. You buy your band once for $189 and you access all your data for life through the free app. No hidden fees, no monthly charge, no feature locked behind a paywall.

Vitro is built to handle sweat, splashes and hand washing day to day. We do recommend removing it before showering, bathing or swimming.

  • 10 to 15 days depending on your use
  • Full charge via the included USB cable

In practice, you charge it twice a month and forget it's on your wrist the rest of the time.

When your Vitro arrives, you'll find:

  • The Vitro biometric sensor
  • A hypoallergenic nylon band
  • A free silicone sport band*
  • A USB charging cable
  • A clear user guide

*Offer valid while stocks last.

Yes, Vitro works with iOS and Android. The Fitmo app is a free download on the App Store and Google Play. Setup takes a few minutes and is fully guided by the QR codes and links included in the box.

Yes. Fitmo is a French brand and your data is:

  • End-to-end encrypted
  • Hosted on European servers compliant with GDPR
  • Accessible only by you (or the people you authorize)

We never sell your data and never share it with any commercial third party.

  • Processing: Orders are prepared within 24 business hours.
  • Delivery time: 6 to 8 business days depending on your address.
  • Trial period: You have 30 days to try Fitmo.
  • Returns: If the product isn't right for you, returns are simple and no reason is needed, for a full refund.
View full details

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Join over 24,000 people who finally understand their body.

Review breakdown summary

Also at Fitmo

There's also a model designed for her.

Tetra brings the essentials of the Vitro — no screen, no subscription — in a band you wear like a piece of jewelry. Sleep and its stages, heart, stress and recovery, on your wrist day and night.

Tetra, the women's smart band, in silver, gold and rose gold Discover Tetra

Frequently asked questions

Vitro isn't a step counter or a smartwatch. It's an observation instrument built to understand your body's deeper signals: recovery, sleep, stress, heart rate variability, blood oxygen.

No screen to distract you, no subscription draining your wallet, no notification putting you under pressure. A calm, sustainable approach to health, built for longevity rather than instant performance.

Vitro continuously tracks:

  • Heart rate
  • Heart rate variability (HRV)
  • Electrocardiogram (ECG)
  • Blood oxygen (SpO2)
  • Sleep stages and quality (light, deep, REM, awakenings)
  • Stress level and recovery
  • Activity and movement
  • Body temperature
  • Blood pressure trends (observational, not medical)
  • Blood sugar trends (observational, not medical)

Longevity means living longer in good health — not just living older. Vitro helps you:

  • Spot your body's faint signals before they turn into symptoms
  • Understand how your habits (sleep, stress, activity) shape your aging
  • Adjust your daily life based on objective data, not on how you feel

On average, our users gain +6.8 years of life expectancy from the adjustments they make based on their data.

No, never. Vitro works entirely without a subscription. You buy your band once for $189, and you get access to all your data and features for life through the included app, free of charge.

No hidden fees, no monthly charge, no feature locked behind a paywall. Your data belongs to you.

Vitro is built to handle sweat, splashes and hand washing day to day.

We do recommend removing it before showering, bathing or swimming. It's proven tough enough for continuous everyday wear, but it isn't a diving band.

  • Between 10 and 15 days of battery life depending on your use
  • Full charge in about 60 minutes with the included magnetic cable

In practice, you charge your Vitro about twice a month. The rest of the time you forget it's on your wrist — unlike smartwatches that need charging every day.

Vitro works with:

iOS

  • iPhone 8 and newer
  • iOS 14.0 and above

Android

  • Android 8.0 (Oreo) and above

Syncing happens over Bluetooth with the included app, free on the App Store and Google Play.

Your Vitro arrives charged and ready to use. Setup takes less than 5 minutes:

  • Download the included app from the App Store or Google Play
  • Turn on your band (long press on the button)
  • Follow the 3 guided steps in the app

No technical setup, no mandatory cloud account. You wear your band, the app shows your data.

You get 30 days to try your Vitro with no commitment. If you're not convinced, send it back and we'll refund you in full, no questions asked. Zero risk for you.

Yes. Fitmo is a French brand, and your data is:

  • End-to-end encrypted
  • Hosted on European servers compliant with GDPR
  • Accessible only by you (or the people you authorize)

We never sell your data and we never share it with any commercial third party. You stay in full control at every step, and can permanently delete it at any time from the app.

In vitro
In vitro 189,00€249,90€