Connect your Frontier X chest strap and every workout arrives with the strap's own read of your heart during the session: heart rate, breathing rate, in-session HRV and the rhythm flags its ECG analysis raised.
Heart rate, breathing rate and in-session HRV arrive with each workout, together with the minutes Frontier X's rhythm analysis flagged. Your coach reports what the strap flagged in plain words and leaves the medical read to you and your doctor.
Most athletes record the same run on a watch too. The two are matched and counted once, so distance and pace come from the watch, the strap adds its ECG read, and your weekly volume and training load stay right.
Your past Frontier X workouts are imported when you connect, and new ones arrive about an hour after the Frontier X app has them.
Open integrations on your dashboard, scroll to Community integrations, pick Frontier X, and sign in with the email and password you use for the Frontier X app. Your history is imported straight away and new workouts arrive automatically.
Yes, encrypted. Frontier X hands back a sign-in that eventually expires, and keeping your login lets the connection renew itself instead of asking you to reconnect. Disconnecting deletes it.
No. Your coach sees the rhythm flags Frontier X's own analysis raised for each session and can mention them, but it never diagnoses, and it follows what you and your doctor have decided about training with your heart.
No. A workout recorded on both is matched and counted once. The watch copy brings distance and pace, and the Frontier X copy adds breathing rate, HRV and the rhythm flags.
The raw ECG trace, standalone ECG checks, sleep and morning readiness recordings, and Frontier X's own training load and strain scores. Nothing is ever written back to your Frontier X account.
After every workout and night of sleep, it messages you with the analysis - and what to change. Free for 7 days.
Used by runners, cyclists, and triathletes worldwide