Merlin IntelliSense HRV Mindfulness VR Kit – Breathing Biofeedback Trainer
Merlin IntelliSense HRV
See your stress. Breathe it down.
The Merlin IntelliSense Mindfulness Kit is a virtual reality breathing trainer with live heart rate variability (HRV) biofeedback. A heart rate sensor reads every beat, the IntelliSense app calculates your HRV in real time, and a calming VR world responds as your breathing brings your nervous system into balance.
Live
HRV biofeedback
VR
Immersive themes
Pacer
Guided breathing
iOS + Android
IntelliSense app

How it works
Six simple steps to calm.
1. Install the IntelliSense app
2. Follow the on-screen instructions
3. Choose a VR theme and audio track
4. Place your phone in the headset
5. Clip the sensor to your ear lobe, or wear the chest strap
6. Relax and breathe with the pacer
Why HRV matters
Your body's readiness, in one number
Heart rate variability is the beat-to-beat change in your heart rhythm. A higher HRV generally reflects a relaxed, recovered state; a lower HRV suggests stress or fatigue. Breathing is the one automatic function you can also control, which makes it the fastest way to shift your HRV.
Manage stress
Learn to switch on your calm response when you need it, before a meeting, a match or bedtime.
Recover faster
Athletes use HRV training to track readiness and support recovery between sessions.
Focus and clarity
A few minutes of coherent breathing helps you feel balanced, clear-headed and in flow.
See it in action
IntelliSense HRV explained
Live biofeedback
Watch your breathing change your heart.
Your heart rate and HRV appear right inside the VR scene, with a breathing pacer to follow. As you settle into an even rhythm, the readings show your body moving towards a coherent state.
Built-in scoring and gamification make it easy to keep practising, and even turn it into a team challenge.


Part of a bigger system
Even better with Merlin Sports ECP.
IntelliSense is integrated into the Merlin Sports ECP system, where athletes breathe in sync with the biofeedback while ECP supports circulation, and HexaGene tracks their HRV and recovery between sessions.
In the box and specifications
IntelliSense is a wellness and relaxation tool. It is not a medical device and does not diagnose or treat any condition.