Zone Training Log
Web App

Data connections

How to connect your data to Zone Training Log?

Zone Training Log reads workouts from Apple Health on iPhone and Health Connect on Android. Connect your watch or workout app there first, then grant Zone Training Log permission.

Česky

Choose both fields to see the right connection path. We do not infer defaults.

How the connection works

Read the privacy policy for complete details.

What is Zone Training Log’s source of truth?
Apple Health on iPhone and Health Connect on Android. Your watch or workout app writes data there; Zone Training Log reads permitted workouts and heart-rate samples. It does not sign in to Garmin, Strava, COROS, or other vendor accounts.
What data does Zone Training Log access?
Only the health data you permit for product features, such as workouts and heart rate. Provider account credentials are never requested by this connection flow. See the privacy policy for full handling details.
Why is my workout missing?
First verify the workout exists in Apple Health or Health Connect, then check that the source app may write it and Zone Training Log may read it. Multi-step routes can also need time to finish syncing.
Why does a workout have no heart-rate zones?
A workout record and detailed heart-rate samples are separate data. If the source sends only time, distance, calories, or an average heart rate, Zone Training Log cannot reconstruct time in zones.
What if two apps write the same workout?
Avoid enabling multiple export chains for the same original workout when possible. Apple Health and Health Connect may contain duplicate records, and Zone Training Log can only work with the records and source metadata they expose.
Which source gets priority?
Source priority is managed in Apple Health or Health Connect. Prefer the original recording source with the most complete workout and heart-rate detail, and disable redundant onward exports when they create duplicates.

All connection guides

iPhone guides

Apple Watch

Recommended

Apple Watch records into Apple Health, which is Zone Training Log’s source of truth on iPhone.

Galaxy Watch / Samsung Health

Unavailable

Modern Wear OS Galaxy Watches do not provide a first-party path into Apple Health.

Garmin

Limited

Garmin Connect can write workouts to Apple Health, but detailed activity heart rate and routes can be incomplete.

Strava

Limited

Strava can send activity information to Apple Health, but its official documentation does not promise detailed heart-rate export.

COROS

Supported

The COROS app supports Apple Health, but verify workout and heart-rate completeness for your activity type.

Polar

Limited

Polar Flow writes workouts to Apple Health, but Polar documents average workout heart rate rather than detailed samples.

Fitbit / Pixel Watch / Google Health

Unavailable

Google Health can currently read Apple Health data on iPhone, but does not write its workout data back to Apple Health.

Suunto

Unavailable

Suunto does not document a first-party Suunto app → Apple Health workout route.

Android guides

Apple Watch

Unavailable

There is no first-party Apple Watch → Health Connect route for Zone Training Log on Android.

Galaxy Watch / Samsung Health

Supported

Samsung Health can pass Galaxy Watch exercises and heart rate to Health Connect for Zone Training Log.

Garmin

Supported

Garmin Connect can write activities to Health Connect, with Garmin-defined data-type limitations.

Strava

Limited

Strava’s official Health Connect export includes time, distance, and calories, not detailed heart rate.

COROS

Supported

COROS lists Health Connect support; workout and heart-rate completeness can vary by activity and app version.

Polar

Supported

Polar Flow supports exercise sessions and workout heart rate through Health Connect.

Fitbit / Pixel Watch / Google Health

Supported

Google Health can share supported workout data with Health Connect for Zone Training Log.

Suunto

Unavailable

Suunto does not document a first-party Suunto app → Health Connect workout route.