My new S3 virtually refuses to wake up at all when lifting or turning my arm up .I can try many many times slow or fast. It doesn't wake up. I have that gesture turned on .But I cannot find a sensitivity setting .is there any way to fix or adjust this? The watch is useless unless I have both hands free so I can turn the dial to wake up .
You could try a reset if that feature is turned On but isn't working @RogerThat
If no joy then if this was my watch I'd ask the seller of the watch to swap it out.
My advice comes from being a UK Samsung Phone Owner.
I have no affiliation with Samsung.
Current Phone ~
Samsung Note 10 Plus 5G _256Gb >_ Samsung One Ui 2.5/ Android 10.