Tuesday, January 26, 2016

Strange "spikes" in resting HR on Garmin 235 (Elevate HR module)

I've noticed some crazy spikes in resting heart rate (RHR) on the Garmin 235 even when sitting perfectly still at my desk.  Here's one example:

Sort of looks like an earthquake (to the right and below the second little workout guy).

This never happens during exercise - only at rest.  I filed a formal complaint with Garmin - was asked if I had the latest updates (a 2.5 Elevate module update, and the 3.3 235 firmware - yes and yes). 

Turns out they are on the case - working on addressing this with a new upgrade.  This is what I heard:

I took a look at your account, and I see the spikes you are talking about. Currently we are aware of some issues with the heart rate on the Forerunner 235, and are working on getting these resolved. This issue will be resolved in a future software update. Although there is no specific time when this update will be out, we are working as fast as we can to get it out to resolve these issues. 

So hold on to your hats, the cavalry is coming, eventually.


  1. I just got the new Fenix 3 Sapphire HR and I'm having similar issues. When I look at the heart rate reading when I'm just sitting at my desk working it usually (not occasionally) reports an inaccurate and quite high heart rate. Just now it was spiking to 110 then 120 then 130 before quickly going back to the 60-70 range. In the graph app it shows a peak of 101 (maybe my HR did go that high this morning after I woke up) so it doesn't seem to be recording the erroneous spikes. I would be interested in whether others are seeing these issues.

  2. I just purchased a vivoactive HR and getting spikes up to 167 just sitting still. I actually got 23 intensity minutes the first day and I didn't even exercise. I'm going to contact Garmin as well. Seems to be happening with the new devices.

  3. Any updates on this issue? I'm waiting on a replacement vivoactive hr because of this same issue. I hope they get it fixed because that's my only issue with the watch is those spikes

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