You attend your sessions. But are you monitoring your health?
Training, sleep, stress, recovery...
Without clear data, it's difficult to progress without burning yourself out. Jycen helps you make the right decisions every day, thanks to a precise wearable and a smart app.
A health wearable. An active response.
Track what's happening in your body, and take direct action with our science-backed natural patches.
Visualize your health as a whole
With 24-hour monitoring of your sleep, workouts, stress, and heart health, JYCEN gives you a complete view of your health to help you make better decisions every day.
Assess your recovery level
Your body is speaking to you. JYCEN translates.
Analyze how your body reacts to your workouts, stress, or lack of sleep.
JYCEN calculates your daily recovery score (0-100) to help you adjust your efforts and avoid overtraining.
✓ Daily recovery score based on HRV, resting heart rate and sleep quality
✓ Personalized AI recommendations: "Ideal day for intense training" or "Prioritize recovery"
✓ Weekly trends to track your progress
“Before JYCEN, I trained 6 days a week without listening to my body. Now, I know exactly when to push and when to recover. Zero injuries in 6 months.” – Sophie R., CrossFit athlete
Optimize your sleep
Sleep is the foundation of everything. Master it.
JYCEN analyzes your sleep phases (light, deep, REM), detects micro-awakenings, and measures your body temperature during the night. The AI suggests optimal bedtimes and personalized routines.
✓ Detailed analysis of the 4 sleep phases with minute-by-minute graphs
✓ Sleep score (0-100) based on duration, efficiency and stages
✓ Smart recommendation: "Go to bed between 10:15 pm and 10:45 pm to maximize your recovery"
✓ Detection of accumulated sleep debt
💤 JYCEN users increase their deep sleep time by an average of 27% after 30 days.
Reach your goals faster
Turn every workout into measurable progress.
JCVital guides your workouts with precise metrics: integrated GPS, calorie expenditure, distance, time, heart rate zones, and a complete history. Choose your activity (running, cycling, swimming, basketball, weight training, yoga, etc.), start the session, and find all your metrics in one place.
✓ 80+ sports activities tracked automatically or manually
✓ Real-time heart rate zones (warm-up, fat burning, cardio, threshold, max)
✓ Accurate calculation of calories burned based on your metabolic profile
✓ Built-in GPS for running/cycling with route map
✓ Strain score (0-21): measure the intensity of each session
Manage your stress in real time
Invisible stress destroys your performance. Detect it before it's too late.
JYCEN monitors your stress levels via respiration, HRV and body temperature.
AI guides you with breathing exercises or micro-interventions to effortlessly return to calm. Your index balance shows the equilibrium between stress and recovery.
✓ Continuous stress monitoring (score 0-100)
✓ Real-time detection of stress spikes with alerts
✓ Guided breathing exercises integrated into the app
✓ Balance index: balance between activity and recovery
📊 73% of JYCEN users report a significant reduction in their stress after 60 days.
Stay connected to your heart health
Your heart is your engine. Watch it closely.
Monitor your heart rate 24/7, your heart rate variability (HRV) and your exercise load
throughout the day. Receive alerts when your body shows signs of fatigue, imbalance, or heart abnormality.
✓ Resting heart rate (RHR): a key indicator of your fitness
✓ HRV (Recovery and Resilience Volume): a measure of your capacity for recovery and resilience to stress
✓ SpO2 (oxygen saturation): monitoring your blood oxygenation
✓ Irregular heart rhythm alerts
✓ Trends over 7/30/90 days
Synchronize your day with your biorhythm
What if you lived in harmony with your body?
Using your personal data (sleep, HRV, temperature), JYCEN identifies your peaks.
natural energy sources and indicates the best times to move, concentrate, sleep, or slow down. Your days become smoother, your energy more stable.
✓ Predictions of optimal energy windows
✓ Recommendations for planning your important tasks
✓ Detection of your chronotype (early bird, night owl)
Better understand your cycle
Your cycle influences everything: energy, performance, recovery.
JYCEN detects the physiological variations related to your menstrual cycle (temperature,
HRV, heart rate). Receive personalized advice on sleep, exercise and nutrition tailored to each phase.
✓ Prediction of your cycle phases based on your biomarkers
✓ Tailored training advice (follicular, ovulation, luteal, menstruation)
✓ Monitoring of symptoms and patterns
✓ Custom notifications
“Understanding my cycle has changed everything. I now know why some weeks
I feel invincible, while others feel exhausted. I adapt my training and nutrition.
Revolutionary.
- Amélie D., Marathon runner
No need to choose between tech, science or wellness.
With JYCEN, you have everything.
One app. All your vital signs.
The JCvital app shows you the essentials, alerts you to what matters, and supports you on a daily basis.
Frequently Asked Questions
How does it work?
Jycen combines a screenless biometric bracelet with a mobile app (JCvital) that analyzes your data (sleep, stress, activity, etc.) using artificial intelligence. The app then offers personalized recommendations, with the option to add targeted Sinnio patches to optimize your well-being.
Is the patch mandatory?
No, they are optional. The Jycen system is designed to be effective on its own. The patches provide additional support (sleep, focus, stress) when you need it.
Is Jycen waterproof?
Yes. The bracelet is IP68 certified, which means it is sweatproof, showerproof, and water-resistant up to 1.5 meters deep.
Is it compatible with iOS/Android?
Yes. JCvital is available for free on the App Store and Google Play. The app automatically syncs with your Jycen bracelet via Bluetooth.
What is the battery life?
Between 7 and 10 days depending on your usage. The bracelet recharges wirelessly in 2 hours.
What data is being measured?
Heart rate, HRV, body temperature, sleep, stress, respiration, physical activity, calories, steps, menstrual tracking, and more.
How does the AI coach work?
JCvital's artificial intelligence analyzes your metrics as a whole (and not in isolation) to suggest concrete actions to integrate into your daily life: ideal bedtime, time to train, breathing routine, or recommended patch.