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FR235 heart rate caps at 161

The HR reading looks fine until November 7th, but from Nov 8th I cannot get a read above 161 no matter how hard I train. I can't remember if I changed any important setting around those dates. I probably did since it is a new watch, but I don't think any setting is meant to introduce a cap to the HR reading.

These are all work outs that I pretty much maxed out. As you can see, the wrong reading also impacts Training Effect and everything else that depends on HR.

Top Replies

BunBun! over 4 years ago +1

Yes, looks like Heart Rate reading was changed. I posted similar thread: Broken Heart Rate (run, FR235).

The date is also the same, 7 Nov was ok, after that it was broken.

.

Next activities were better…

All Replies

0 7063189 over 4 years ago in reply to Carlo.Siqueira

Mine is still not working properly. I just called their support today and we are going to do a few tests. It may have something to do with the fact that the watch is not reading the HR properly and then 'guessing' my HR based on other factors.

They have also said my 8.00 version is how they are coming out of the factory, but that version is for some reason not yet available for those who had the watch before the version came out.

By the end of the week I should have news!!

Carlo, if you are going to call support, you need to do it in Brazil: 0800 047 5016. Or else they will ask you to call that number.

0 9003803 over 4 years ago in reply to 7063189

Any updates on the HR data issues? I use the FR220 and a HRM strap, my last run with all HR data captured was Dec 17, since then the HR data is unreliable.

0 7063189 over 4 years ago in reply to 9003803

After contacting support over the phone, the heart rate reader in my watch is broken. The figures we can see in the graphs I posted above are estimations based on other data the watch collects (mainly from how much I am moving), NOT my heart rate.

To get another watch I would need to mail them the broken one at my expanse. Then the watch I receive in return may be refurbished. I decided to use mine for the GPS and buy a new one from another brand in a couple years.

0 Rerun201 over 4 years ago in reply to Rerun201

UPDATE: The intensity minutes issue I experienced has been rectified. I'm thinking it was an issue on their app/web portal more than an issue on the watch itself.

0 1575757 over 4 years ago

I have the same prob too. refer to https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-230-235/214022/abnormal-heart-rate-pattern. It will cap at 161, even if I push harder. I thought I had a condition on my health at 1st.

Anyway, have your problem solved?

0 1575757 over 4 years ago

Anyway, have your problem solved?

0 7063189 over 4 years ago in reply to 1575757

It wasn't solved. I contacted support, the watch is really broken and they won't replace it unless I have an US address (which I don't). Even so, they would give me a refurbished watch. So I just decided to buy a new one from a different brand.

0 Pianomaster over 2 years ago in reply to BunBun!

I'm having the same problem. My graph looks very similar, with straight lines most of the run and correct readings only at the end. It's not a temperature issue (it's summer and I'm in Texas). I've had my Forerunner 235 since January 2020, and I think it worked fine at first, and only started later. But this problem has been going on for at least 6 months for me.

0 BunBun! over 1 year ago in reply to Pianomaster

I again have 161 and it's summer now, so I also confirm it's not from temperature.