Your zones. Your recorded VO₂.
WatchVO2 is being built to add up time in a heart-rate zone you define and to show VO₂ max values already recorded in Apple Health.
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What it does
A zone you define
You set the heart-rate band. The app does not prescribe one. Time is counted only after you save a band.
Careful minutes
Pauses are left out. A gap longer than 60 seconds is not filled in. The top of the band is not included. Overlapping workouts are not double-counted.
Recorded VO₂
See VO₂ max values Apple Health already has. Missing days stay missing. Averages use the samples that exist.
A widget that does not invent
The widget shows saved zone minutes when the week is covered, otherwise the latest recorded VO₂, otherwise no data.
WatchVO2 uses heart-rate and VO₂ records from Apple Health. You choose the zone. It is not a medical device.
Privacy in plain words
The zone bands you save are stored on your iPhone. Workout and VO₂ samples are read from Apple Health. Read the full privacy policy.
Availability
WatchVO2 is in development for iPhone and is not on the App Store yet. This page will link to the App Store only once the app is published.
Questions
Can I download WatchVO2 now?
Not yet. It is in development for iPhone.
Does it tell me my correct heart-rate zone?
No. You enter the band. There is no universal zone in the app.
Contact
Email support@watchvo2.com.