The GRND wearable
Quiet on your wrist. Useful in context.
GRND is a screenless wearable fitness band and body monitoring band engineered to collect day-and-night physiological signals without screen distractions.
A fitness band made to fade into the background

Rather than putting notifications, vibrating alarms, and a bright display on your wrist, GRND prioritises 24/7 continuous signal collection. As a dedicated screenless wearable and body monitoring band, it establishes a calmer, more productive relationship with your body's data.
Its value is not a single isolated reading or daily step count. It is the ability to track longitudinal physiological trends alongside workouts, sleep stages, symptoms, and medical care records in one unified timeline.
Intensive physiological signals & vital tracking
GRND is designed as an intensive body monitoring band capturing multi-wavelength PPG heart rate, heart rate variability (HRV), nocturnal movement, respiratory rate, skin temperature, and blood oxygenation (SpO₂). Sensor availability and algorithms are calibrated to your individual historical baseline rather than static population averages.
While consumer fitness bands help observe trends and provide actionable context for wellness and medical care consultations, they are not a substitute for clinical diagnostics. Read about how fitness wearables work and the science of sleep tracking.
Designed for a bigger health ecosystem
The body monitoring band is one input to GRND. The overarching product vision connects continuous signals with workouts, lab tests, prescriptions, and clinical consultations into one timeline. Learn how the GRND system works and how the health ecosystem fits together.
Understand your baseline.
Join the GRND early waitlist to follow the product as it develops.