No. Vēlox works with power (cycling) and heart rate when you have them, and duration + perceived intensity when you do not. Power on the bike and CSS in the pool sharpen the picture, though they are not required.

Garmin, Coros, Polar, Suunto and Wahoo all sync through intervals.icu, which Vēlox connects to directly. WHOOP connects on its own. We are currently unable to offer a direct Strava connection.

Devices connect read-only. Vēlox never posts, never shares, and your training data stays on Vēlox. Delete your account and it goes with you.

Always. Move or edit any session and it stays pinned. The coach replans around your choices, never over them.

4.99 euro a month, or 39.99 euro a year. Ten days free before the first charge. Cancel anytime.

Now. Create an account and you are training within minutes, no invite needed.