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HR Screen - How It Works [In Case You Didn't Already Know]

In my conversation with Garmin support regarding the issue I was having with not getting any cadence data from my GSC-10 (it's not compatible) I asked the tech. about the HR screen and its method of operation. This is what the tech. forwarded from Garmin's documentation on the matter:

"The fenix 3 HR, Foreunner 235 and vivosmart HR measures your heart rate at your wrist using a optical heart rate sensor. This sensor samples your heart rate occasionally increasing in frequency as the device detects increased movement such as going for a walk or run.

From the device's heart rate screen you are provided the following information:

Last sampled or current heart rate (left hand number)
Average resting heart rate (right hand number)

When you first view the heart rate screen the icon will either be flashing or solid. When flashing, the device's heart rate sensor is attempting to detect your pulse in order to provide you with your current heart rate. Until the device detects your pulse, the left hand number will display the heart rate that was last sampled. Once the heart icon is solid and no longer flashing, the device has locked onto your pulse and will display your current heart rate for 30 seconds before returning to your default home screen."

0 robkalinsky over 9 years ago

Thanks. I assumed it worked that way, but it's good to have confirmation.

I just opened the HR widget. Guess what the widget said was my heart rate after a few seconds of flashing... 72. :)

I think it searches for longer than just the flashing heart before it hits the true heart rate.

0 Former Member over 9 years ago

Thanks. I assumed it worked that way, but it's good to have confirmation.

I just opened the HR widget. Guess what the widget said was my heart rate after a few seconds of flashing... 72. :)

I think it searches for longer than just the flashing heart before it hits the true heart rate.

Yes, mine too. HR goes solid at 72 then gradually adjusts to the correct HR. You just have to hope it locks on properly before the 30s are up!

0 Former Member over 9 years ago

That's all well and dandy and may be the intended behavior but not exactly how it's done it in practice. It's obviously buggy on the FR235 at the moment. They appear to have fixed it on the vivosmartHR so I expect a firmware update to bring in that fix for the FR235 in the not too distant future.

0 K__T over 9 years ago

Yes, mine too. HR goes solid at 72 then gradually adjusts to the correct HR. You just have to hope it locks on properly before the 30s are up!

That's what I usually see as well.

0 Former Member over 9 years ago

The VSHR received a sensor update that fixed the 72 issue on 01/26/16. I have no idea what's taking so long to fix the 235. It's my understanding that they both are using the same sensor/technology. Support told me prior to 01/26 that the engineer's are working on a fix for the 235. See post: https://forums.garmin.com/showthread.php?342121-Garmin-Support-Acknowledges-HR-71-72-Bug

0 K__T over 9 years ago

In my conversation with Garmin support regarding the issue I was having with not getting any cadence data from my GSC-10 (it's not compatible)

Correction (JIC you are not following the post related to my cadence issue): I determined that the issue I was having was due to misplacement of the crank arm magnet. The GSC-10 works just fine with the FR 235.:)