Apple Watch Series 3 - Apple's newest internet-connected smartwatch

I'm considering buying this, but I'm worried about the notifications that will come on all 4 (Mac, iPhone, Watch and iPad). Is there any way to smartly control notifications? If I'm working on my Mac, I have already seen the calendar update, why does it come on all of them together?

Looks kinda cool. But excuse me... why so expensive?

Not sure why you would want to answer an #iPhone on your surfboard. I'm just hoping it is waterproof.

i was really hoping for a watch that was half as fat and round faced... so no from me.

Awesome!!!