The ultimate static apnea training companion. Master your breath-hold with real-time SpO₂ monitoring†, Garmin heart rate sync, and automated diaphragm spasm detection*.
CO2, O2, and custom tables that evolve alongside your training. Configure personalized sets and intervals to progressively extend your breath-hold duration.
Seamlessly pair with your Garmin watch to track heart rate‡ and diaphragm spasms* in real-time during every session.
Deep integration with Bluetooth oximeters for continuous SpO₂† monitoring. Visualize your recovery and drops with high-fidelity charts.
Native voice feedback in English, Chinese, and Japanese to guide you through your training without looking at your device.
*Diaphragm spasm detection is experimental and requires wearing the watch on the upper abdomen area.
†SpO₂ monitoring requires a compatible Bluetooth LE oximeter. Support is expanding, but not all models are currently compatible.
‡Garmin heart rate tracking requires direct skin contact. If wearing the watch over a shirt, heart rate data can still be sourced from a paired oximeter.