HR monitor

There are "bones of the wrist." There is no specific wrist bone. To suggest placing something with reference to the "wrist bone" is an anatomical nonsense. You might as well ask somebody to find their third eye.

Nowhere did I refer to anything as a wrist bone, but you already know that. So, when you say "bones of the wrist" you think that's different then when I say "wrist bones"? Lol. You make perfect sense now. I laughed so hard I almost choked on some chicken bones I was chewing on. Or would that be "bones of the chicken"?

I used the term "wrist bone" because it's a simple way of describing that particular feature but I'm sure anyone who wasn't in the mood to use pedantry to move the goalposts knew what I meant.

No amount of anatomical precision will change the fact that you asked for confirmation of the other posters comment about how proper placement will avoid the HRM being affected by the "bones of the wrist" and it was given.

They know exactly what was said and what was meant. I refuse to believe anyone would say to themselves, "Wrist bone? What's a wrist bone? I have absolutely no idea what to do when they say to wear the watch 1-2 inches above the wrist bone? There's no such thing as a wrist bone. What could they possibly be talking about?" To believe that would just be sad and pathetic. This is just a case where someone didn't know how to wear the watch properly, posted a comment and when it was pointed out that their post had bad information they started a bunch of nonsense to try and save face. Most people would say, "I wasn't aware of that. Good to know.", or something to that affect, but here we are.

I refuse to believe anyone would say to themselves, "Wrist bone? What's a wrist bone?

Sure, It's hard to believe anybody is actually familiar with the individual bones of the wrist. How sad and pathetic is that?

But this isn't about me -- the HR sensor works fine for me, more or less, and always did. I'm trying to think of reasons why it wouldn't work so well for other people. It seems to me that the individual anatomy of the wrist could be one factor in that explanation. Wrist-worn HR monitors don't work so well for everybody. No doubt user error is partly to blame, but I doubt that it's the only significant factor.

What bothers me here is not the sloppy use of slang terms like "the wrist bone" -- although I have to confess that does bother me, pedant that I am -- but rather the implication that incorrect function is necessarily the result of user error.

my outdoor running profiles were exactly the same as wdwd, starting out very high and then suddenly dropping by even 20 bpm after 1 km or so. Then I figured out that this could be resolved by tightening up the band one notch so that it fit more snugly; the profile is completely flat now (within reason). Something to consider, just saying... And I have a small wrist complete with wrist bones as well !!