Zone Training
Zone 2 is the easy, conversational effort that builds your engine.
Why train Zone 2
How it works
RunBeat tells you to speed up or slow down to stay in zone, right over your music or podcast.
Timed Intervals
VO₂ max is how much oxygen your body can use at full effort, and it sets your ceiling.
Why train VO₂ max
How it works
RunBeat calls every work and rest phase, and your Apple Music playlists switch with it.
Distance Intervals
Speedwork is distance repeats at one target pace, so your legs learn your race split and hold it.
Why Speedwork
How it works
RunBeat calls the start and end of every rep, measured by GPS.
RunBeat is an iPhone app that works with Apple Watch, Google Fitbit Air, Whoop, Polar, Garmin, Wahoo, COROS, Scosche, COOSPO, and any Bluetooth heart rate monitor.
See all compatible devices and setup instructions
Zone 2 is easy aerobic running at 60–70% of heart rate reserve, an effort you can hold for hours. It's how you build an aerobic base: a lot of easy miles, week after week.
Faster paces. Stronger finishes. A higher ceiling for every hard effort you run.
Six 1 km reps at your target average race split, run on fresh legs, with 90 seconds of walking rest between reps.
Target HR = RHR + % Intensity × (Max HR − RHR)
