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Handedness does it actually matter?

I am lefty, I normally would wear my watch on the right wrist but tend to prefer wearing it on the inside of my wrist; I have had no known issues with tracking from this, but it left me wondering (no pun intended), what it actually does???

It doesn't flip the screen... not sure why this is not an option on a mass market device, but whatever makes their stock holders happy I guess, lol.

Nor does it seem to change the HR measured...
I wear it inside my wrist or outside interchangeably and haven't yet spotted a difference...(I'm very pale, lol)

I don't even spot a difference if I switch wrists. (Which it would if blood flow expectations where different)

I expected to see the step counts vary instead then... Maybe the handedness option sets which way is "forward" to the watch...

Nope. Step counts don't seem to care either...

I'm stumped.

Maybe a bored dev can pull open the testing data from R&D and tell us what exactly it was supposed to do, and not just what the manual says it should do?

0 SfD over 2 years ago

Things measured through optical sensor(HR, Pulse OX, Respiration etc.) are more accurate if the hand moves less.

Wearing the watch, for example, on the left hand(being right handed) guess gives you more accurate results, by moving the hand on which the watch is, less.

That's my best guess.

0 4411990 over 2 years ago in reply to SfD

It only matters if you have Gesture on.

I wear the watch on both wrists during the day depending on what I'm doing with no problems because I turned Gesture off. I don't see the need for it.

0 Vizi over 2 years ago

I think it is because non-dominant hand moves less, so step count is more accurate.