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Garmin HRM belt appears to be giving false readings

I am a 77 year old male, and ride a 2022 Giant Trance X e-MTB 29er.

I have a hereditary heart condition ( Coronary Artery Disease) and have to live with it. My cardiologist suggests I ride at twice my resting heart rate. (47x 2 = 94-95 beats per minute). I stick to this and if I am biking uphill and I reach 95HBM, I either back off a bit, or stop for a short rest to allow my heart rate to drop back down before resuming.

I have had an Edge 130 with a Garmin HRM belt for a couple of years. Normal riding is over undulating MTB tracks (Grade 3 to 3+)

Just lately the Garmin 130 reading appears to be reading way too high. e.g. as high as 130-145 BPM. -fluctuating wildly.

I have a new battery, no difference.

I am starting to think the problem is in either the pairing with the Garmin Connect App., Iphone 6s blue-tooth or the Giant ANT+ sensors.

Can anyone out there help a confused geriatric thanks!!!!!!

0 WalterB 11 months ago

I gave up on Garmin HR belts a couple of years ago.

I now have a belt from Decathlon, but Magene also makes a good one. Any ANT+ HR belt should work

0 beardmorebros 11 months ago

Does the clothing you wear next to the hrm strap affect the readings?

I read that some clothing rubbing on the strap can give false readings.

0 8656823 11 months ago in reply to beardmorebros

Thanks for the reply. I think I have nailed the problem down to faulty battery connection. Can't find a Garmin shop in NZ that sell the 'O' ring, so have taped the battery cover down with strong electrical tape. Working fine now touch wood!!!!!!