ONE Live App brings the ONE Intelligence Live engine to an app that records its own ride, the only way an Edge lets an app read its accelerometer. Built for mountain biking and XCO; it also records road or trainer rides. • Live W′ reserve with the mountain W′ from your ONE profile, matches, recharge and a CP adjusted for altitude, heat and fatigue. • Jumps and airtime, and terrain roughness (smooth, medium, rough), from the Edge's accelerometer. • Terrain states: start, climb, attack, descent and technical. • Circuit laps by GPS: press LAP at the start. • Alerts ranked by importance, an eating reminder and your climbs in the status bar. Use: ▶ starts and stops, LAP marks a lap, MENU opens the settings (link with ONE, manual profile, terrain). When you stop you choose Resume, Save or Discard. The ride is saved like any Edge activity, with 14 ONE fields in the FIT file. Battery: the accelerometer only runs while you ride, and on the trainer GPS and accelerometer are off. Link it to your ONE profile with an 8-digit code from the portal (onesportscience.com/portal) or enter your CP and W′ by hand. Requires a power meter. Jump and roughness thresholds will keep being tuned with real rides. The app's screens are in Spanish. The numbers are sports estimates; this is not a medical device.