Freedive Trainer

Freedive Trainer turns your Garmin watch into a full apnea training coach — no phone, no stopwatch, no counting in your head. Build CO2, O2, Mixed, and Custom tables on freedive.one (or right on the watch) and run them as static, dry breath-hold training. Every session starts with a breathe-up, not a cold hold — the watch tells you when to breathe, when to go, and when the hold ends, with vibration and sound cues you can hear with your eyes closed. FEATURES - CO2 tables — shrinking rest between holds, the classic breath-hold builder - O2 tables — growing holds with breathe-up and a GO cue - Mixed tables — chain CO2/O2 blocks with rest gaps - Custom tables — freeform round-by-round tables built on freedive.one - Breathe-first flow — every hold is preceded by its own breathe-up, so you never start cold - Vibration + tone cues for hold start, breathe start, 10-second warnings, target reached, and an unmissable breatheNow cue - Heart rate sampled through every hold and rest, min/max per round - SpO2 tracking where your watch supports it - freedive.one sync — build tables on the site, pull them to your watch with a pairing code; completed sessions push back up to your Freedive Journal automatically - Session history and results on the watch — total hold, longest hold, round-by-round HR - Built for the whole Fenix/Descent family, with a dedicated layout for the Descent G2's round AMOLED and the Descent G1's memory-in-pixel display This app is intended for dry, on-land training only — not for use in the pool, open water, or while diving. Freedive Trainer is a training aid, not a safety device. Never train breath-holds alone — always train with an experienced buddy watching you.

First public release: CO2, O2, Mixed, and Custom training tables for static, dry breath-hold training, breathe-first cueing, freedive.one sync, and session history with heart rate.