Lief HRV Wearable for Stress Relief

Track with Lief
The Lief is the most intelligent, clinically accurate HRV wearable device for mental health, and the only one that can intervene in real time to help your body de-stress.

Track your heart rate variability (HRV) and receive personalized biofeedback to reduce stress and anxiety. Our clinical-grade technology is designed to help you manage your mind and body for optimal wellness.

Start training your mind
You have the ability to transform how you feel. It's a skill, and we're here to help you build it. With Lief, you'll learn how to train your body to stay calm and focused when you need it most.

Heart Rate Variability (HRV)
Lief improves your heart rate variability, a scientifically-proven biomarker of mental health. Follow the vibrations to build awareness of your triggers, then self-regulate in the moments you need it most.

Transform how you feel
As your average HRV increases, you'll feel the difference and experience the power of calming your mind on-demand.

BACKED BY SCIENCE
Clinically proven results
We’re a drug-free solution to stress and worry backed by empirical research, as well as decades of evidence on heart rate variability biofeedback.