Wearable relief

Track your stress, train for relief.

Tedx
Listen to the heart

Listen to the Body

Lief measures your heart and breath to track your stress levels in real-time, using a clinically-proven biomarker of stress called heart rate variability (HRV).

Insight into the body
The power of self-regulation

Train and Recover

When you're under pressure, learn to control your body's natural stress response through gentle, safe biofeedback exercises.

Practice when you need it by following the vibrations. It's just 3 minutes, and you can do it anywhere.

Realtime Insight

Realtime Insight

Your Lief coach uses simple conversation to share insights, reports, and actionable guidance based on your physiology, behaviors, and personal goals. She’s always on, and always with you.

STRESS ZONES

Body analysis simplified into 5 distinct stress zones, updating in realtime.

HRV AND BREATH MONTIORING

Continuous ECG monitoring with medical-grade accuracy.

LIFESTYLE TRENDS

Notice larger trends over time related to stress, activity, sleep, and more.

8-WEEK PROGRAM

Learn self-regulation techniques to improve your relationship with stress.

HAPTIC ENGINE

The Lief uses discreet vibrations on the body for biofeedback. No screens needed.

SUPPORT

Connect with your coach or doctor to support your journey into improved self-regulation.