Everything in a $130 Garmin HRM. Plus GPS, HRV, and respiration. For less than the watch you no longer need.
Optical sensors bounce, drift, and lose accuracy at high heart rates. You're training on bad data.
Watch for GPS plus strap for HR accuracy. That's two things to charge, sync, and wear. Why?
Most people finish their run, shower, then look at their phone. The screen on your wrist was never the point.
Dual-electrode chest measurement. The gold standard for heart rate with no wrist bounce or signal drops.
Track your route without a watch or phone. Toggle it off for indoor sessions and save battery for weeks.
Clinical-grade heart rate variability for recovery scores, readiness tracking, and overtraining prevention.
Real-time respiration data. A key aerobic threshold indicator most devices ignore.
Ground contact time, cadence, vertical oscillation. Built-in accelerometer captures it all.
Dual broadcast to any head unit, watch, or app. Or go solo and sync to the companion app after.
Snap the sensor onto the chest strap. It auto-detects your activity: run, ride, or walk.
No phone needed. GPS and all sensors record independently to onboard storage.
Sync to the app over Bluetooth. Export to Strava, TrainingPeaks, Apple Health. No walled gardens.
Early supporters get priority access and launch pricing.