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Question

Granular heart rate data does not synch with Apple Health

  • January 8, 2026
  • 1 reply
  • 54 views

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Here’s the situation:

Smart trainer connected to MyWhoosh for power/cadence/control. Garmin chest strap connected to MyWhoosh for HR. Everything works and syncs correctly with Strava after uploading ride. The problem is that I only see partial HR data in the Health app (two data points and an average HR that is close but not the same as Strava). This problem then gets replicated as partial HR data in the Fitness app and any app that pulls from Health (e.g. Bevel). All permissions are set correctly in Health and Strava. Also, when I do an outdoor run with Apple Watch using the Strava app there’s no issue. 

1 reply

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  • Hub Starter
  • January 31, 2026

I’m having this exact problem as well.  All the data is accurate on Strava.  But then for some reason when the data gets pushed over to Apple Fitness / Healthfit Apps the heart rate data changes.  Apple fitness shows the heart rate data as almost only taken every 5 minutes.  and it all quite a bit lower.  

 

Like today for instance,  my workout I had an average of 142BPM on strava.  Well on Applefitness it says the average is 130BPM

 

This creates an annoying problem,  because my training load info / ratio is low because it always thinks I’m; doing Z1/Z2 workouts…

 

Anybody have a fix for this? 

 

It seems like this started when IOS 26 came in.