Did you get your Zone 2 minutes this week?
Zone 2 Training Coach counts every minute you spend in Zone 2 from your Apple Watch, in workouts and out of them, and shows your week in one ring. No logging and no start button.
Zones that match your Watch
Uses the same heart rate zones as Apple's Workout app, read straight from your Apple Watch on iOS 27.
Live Zone 2 workouts
Big heart rate, zone colors and a tap on your wrist when you drift out of Zone 2. Your iPhone follows along live.
Cardio Fitness level
See your VO2 max level for your age, compared with published reference data.
Found Zone 2
Brisk walks count too. Zone 2 time outside workouts is picked up automatically.
A coach that fits your week
Plans your Zone 2 around the days and session lengths you actually have. (Pro)
Private by design
No account. Your health data stays on your iPhone.
Zone 2 guides
Why your Apple Watch Zone 2 is higher than "220 − age"
The two formulas, and which one to trust.
VO2 max by age: what's a good Cardio Fitness level?
Reference levels for men and women, from 20 to 79.
How to fit 150 minutes of Zone 2 into a busy week
Real schedules that add up.
Why your iPhone heart rate lags your Apple Watch
What the Watch saves, and when it syncs.