How can I import Polar HRM files from my RCX5, which is not supported by Polar Flow?

1

I have a Polar RCX5, which is not compatible with Polar Flow because it’s too old.

I’ve been collecting heart rate data with this watch when I swim because I have heard that heart rate chest straps are more accurate under water than optical wrist-based heart rate readings.

I tried dropping my HRM files into Dropbox, but the files are not getting pulled in to Intervals.icu.

If and when I can import these files, can I then match them to my Garmin swim data? I know there will be a time offset between the beginnings of the files, but I can estimate what that is.

2

Intervals.icu does not support merging of activities yet (it is on the todo list). So if you can get those files uploaded then you will need to do Actions → Settings and tick all the ignore boxes.

What format are they in? You could also try manual upload (“Upload” button on calendar page).

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3

Oh, thanks!

They are in .hrm format.

I will try a manual upload.

Edit: So I discovered that .hrm files are not supported. Will they be supported in the future?

Edit 2: Ha! Golden Cheetah is good for something! I was ablw to import my .hrm files into GC, then export them as a FIT file, which I was then able to upload to Intervals.icu.

4

Cool. I am not familiar with that format so good the GC can deal with it.

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5

It’s a heart-rate-only format. I can share files with you, if you’re interested, but it’s no big deal if you’re not.

6

Merging activities is the tricky bit especially if one only has HR data. Need to think about that.

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7

Ok, thanks!