HR total delusion

I lol'd at your title. Thanks for that.
If I had to guess by looking at your run, I'd say your HRM didn't have a true lock for the first ~3 minutes, then finally found and locked onto your heart rate for the duration of the run. I've had this happen a few times. I wouldn't say it's delusional, just a little slow to the party. :)

Eheheh: laughing is very important!
Watching the HR monitor I tought I had a heart attack....

What's wired to me is the fact that, when I started to run, the HR icon was fixed.
So what's wrong?

I even tried changing position on the wrist, but... shouldn't a product work as advertised, without becoming crazy on finding "strange solutions"?

Have many happy runs!!
- enrico, now at 43 BPM (or so FR235 says).... am I almost dead?

DC rainmaker's reviews for 235/225 show often that they need a bit of warmup to really track. Some times his reviews even showed a heart rate band needed some warmup.

I don't believe what any device tells me about my HR until I've run at least 2k. But I'll note that I get fewer crazy jumps so far with my 235 than my wahoo chest strap (often it would go from 100-110 to 180+ for about 20 seconds 90 seconds into each run (and yes, I wet my chest and the strap before heading out)).

What's wired to me is the fact that, when I started to run, the HR icon was fixed.
So what's wrong?

It thought it had a lock on your HR, but had a lock on something else instead. Too hard to say, to be honest.

These optical HRM's are a tricky business and vary so much from person to person. I would never want the responsibility of implementing and maintaining one, that's for sure.

The other day I got fed up with my 235's HRM and decided to use my old trusty Scosche Rhythm+. It ended up being a complete disaster even more-so than the Garmin, so I guess the joke is on me.

40 years ago I would head out to run with a hand held stop watch about the size of a wall clock. Heart rate? Hell I knew as long as I thought it was beating I figured I was OK.
Don't get me wrong, I love all the tech stuff. Relax, be thankful you can run. Soon to be 73 with and closing in on 85,000 miles run, myself and thousands of others did OK without a lot of the gear we now have. It surprises me with the shoes,running gear and sophisticated body metrics we now have I see running times for the average neighborhood runner a lot slower. For this class of runner- under 4 hours was kind of the goal. When I see times 5 and 6 hour finishing marathon times, it appears folks might be getting to fixated on all the data. Go run, make it your play. Have fun, if you do that you will be a lifetime runner and not a flash in the pan who runs too fast, too far, too often and ends up joining the world's largest running club--"I use to run, but.......club" Nick:)

Man, I hope I can run a third of those mile by the time I'm 70. Congrats to you.

I'm a data nerd and the data motivates me, but I agree, sometimes it's nice to forget about it all and enjoy a nice run on a nice day while leaving all the tech at home.

It thought it had a lock on your HR, but had a lock on something else instead. Too hard to say, to be honest.

These optical HRM's are a tricky business and vary so much from person to person. I would never want the responsibility of implementing and maintaining one, that's for sure.

The other day I got fed up with my 235's HRM and decided to use my old trusty Scosche Rhythm+. It ended up being a complete disaster even more-so than the Garmin, so I guess the joke is on me.

Yes. No solution is perfect.

I did a half marathon a couple of weeks ago and wore a chest strap. HR was perfect for the first 1/4 mile then dropped to 50-60bpm before getting back on track from the 1 mile mark to the end.

Today I'll be doing 400m repeats for the first time since getting the 235 and plan on doing it with just the oHRM to see if it's as bad on short intervals as people have been saying.