Treadmill Heart rate inaccurate

Hello,

I have a Fenix 6 Sapphire with the latest beta firmware.

I've noticed that when I'm doing treadmill activity, my heart rate is around 80-90 bpm. The watch is worn correctly, pretty tight and higher on the arm. I am doing the treadmill after the Strength workout where the heart rate is recorded correctly.

I've done in 3 different days, the first day the HR was around 110 constantly while the heart rate reported from treadmill sensor was 140-150. The second day it worked correctly but today, only 80-90. When tried on the treadmill sensor my bpm was 156.

Tried to end the activity, started a new one, the same. After around 20 minutes it started to raise.

What is happening?!

What's funny is after endings the activity and I've left the gym, my non activity heart rate was 100 while walking home.

Really strange...

Top Replies

Andrei over 4 years ago in reply to bluefish +1 suggested

Checked however not a fix since 8 months based on that thread

All Replies

0 stroper over 4 years ago

https://www8.garmin.com/manuals/webhelp/fenix66s6xpro/EN-US/GUID-86541696-B60E-44BC-9A46-4349C86A1CD8.html

0 Andrei over 4 years ago in reply to stroper

I'm talking about Heart rate not Treadmill calibration

0 Andrei over 4 years ago

0 stroper over 4 years ago

I think wrist based heart monitor has higher accuracy than hand grip based as it depends on multiple dependencies like wet hands, solution, skin type etc. Chest wrap heart monitor is the most efficient way to check heart rate while doing activities. I wear Garmin Tri and Fenix 6 while doing rowing, strength training and running on treadmill. My heart rate is between 100 to 107 even after 30 minutes of doing workout. Since you are using beta, try sending out email to folks [email protected].

0 bluefish over 4 years ago

Have a look at this Thread :

forums.garmin.com/.../1060151

+1 Andrei over 4 years ago in reply to bluefish

Checked however not a fix since 8 months based on that thread

0 Andrei over 4 years ago

Did another treadmill workout today and the Heart rate was pretty accurate

What I've noticed is that the other day when it was struggling to read a correct Heart rate and was recording only 80-90 Bpm while the correct HR was around 140-150, when I looked back on the watch I've seen that both green and red light were flashing, basically the Pulse OX was trying to read as well during the workout.

Today when the heart rate was recorded correctly, only the green light was flashing.

Could this mean something?

0 stroper over 4 years ago in reply to Andrei

Not sure. But I got your point. This morning I did rowing without Garmin Tri heart rate monitor and Fenix 6 with 10.0 beta firmware indicated that my heart rate is way too low right after the exercise. It supposed to be near 140 but it shows as 84. After few minutes, it reaches to 102 and abnormal heart rate alert came up several times even after the workout. Yeah, we can see that heart rate monitor is inaccurate. This is not the case with v8 firmware.

0 Former Member over 4 years ago in reply to Andrei

Ever since Garmin was held ransom, the heart rate monitor has been iffy. Sometimes it's correct and other times it's very wrong. It used to work fine Garmin was hacked.