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Incorrect Elevation Gains Apple Watch

RonHuizenga
Shkhara

Hi All,

I use Strava on my Apple Watch Series 6.  For the past few weeks (since last OS update), elevation gains (outdoor ride) have been way off, reporting at least double what they should be.  Is anyone else experiencing the same?  I removed and reinstalled Strava on my watch and phone, but that hasn't made any difference.

1 ACCEPTED SOLUTION

Jane
Moderator Moderator
Moderator

Hi All,

Sorry about the confusion.  There's no new release, the fix was applied to the current release.  So if your watch is up to date, the problem should be resolved.  

Give it a try and let us know the results.


Jane (she/her)
STRAVA | Community Hub Team

View solution in original post

25 REPLIES 25

Just letting you know that this issue has not been fixed. Surely the fix is simply to not modify the imported data from Apple Watches?

Hi Jane, on 22 Dec 2023 I recorded a ride with Apple Watch Ultra 2 and Garmin Edge 830.

Apple Watch workout recorded 569m altitude gain. Garmin Edge 830 recorded 566m altitude gain.

Both recordings were imported into Strava.

In Strava App the Apple Watch workout showed 694m altitude gain.

In Strava App the Garmin Edge 830 showed 566m altitude gain.

The Apple Watch import shows Strava (incorrectly) increased the altitude gain by 125m.

Also, I am unable to adjust the elevation to fix any incorrect altitude readings for the workouts imported from my Apple Watch, but I am able to adjust the elevation of the correct altitude gain readings from workouts imported from the Garmin Edge.

Yes it seems to work. Data is displayed again as before.

Thanks very much!

So in other words it's a fix on the back end when posting rather than a fix that is downloaded to the code on the watch (and/or the phone the watch is paired to).  A little more detail in the explanation goes a long way.

Jane
Moderator Moderator
Moderator

Hello Everyone,

Thanks for your patience with this.  A fix has been rolled out in the latest update.  If you haven't done so already, please update your watch and let us know if you continue to have any problems after that.


Jane (she/her)
STRAVA | Community Hub Team

Jane - what is the ETA for this update to be in the Apple store?  The most recent Strava update was Dec 22 based on anything I can see. 

What update are you referring to? There is no update available to the Strava app or the Apple watch itself.

Hi Jane,

I don't see an available update yet (Canadian app store).  I assume there's a bit of lag before it gets posted there?

Jane
Moderator Moderator
Moderator

Hello,

Sorry to hear of the errors with elevation and thanks for posting about this.

Firstly, please note that you can swap the elevation data stream over from your watch hardware over to our server-side calculation which should look more accurate.

To correct your elevation:
 

  • From the activity page click on (◦◦◦) the more options menu > Correct Elevation.
  • From the pop-up, click "Correct Elevation."
  • When the status changes from "Calculating" to "Updated," refresh the page.


I see Apple has also recently published an article with steps to calibrate your watch hardware if there are issues with data acquisition: https://support.apple.com/en-us/HT204516 

Please let us know if these troubleshooting steps are helpful.


Jane (she/her)
STRAVA | Community Hub Team

I just had to fix some elevation data that my device recorded incorrectly (750m elevation gain when it was more like 100m). On looking at the profile, it was fluctuating wildly (unsure why, as it is normally OK).

The  "Correct Elevation" option wasn't available to me so, to fix it, I exported the gpx file from strava, deleted the activity, edited the gpx file to remove all the <ele> entries, then imported it as a manual activity. This preserved all the original data (including segment times) but replaced the elevation with something calculated by strava (which is far closer to the truth than my device data in this case).

Removing the <ele> tags can be done quickly in the vim text editor using this command:

:%s/<ele.*ele>//g

Any other text editor that can delete things based on regular expression matching will also be fine and should be able to remove all the <ele> tags in bulk.

Hope this helps others who can't find any other way of fixing elevation information.