Hi, So I really don't know that much about Apple watches and overall I am not a fan of using too much technology. I only use sports watches to track my calories and HR while workout out. For the past few years I have been using Fitbit but after buying the same watch twice I thought why not try using the Apple watch cuz when I first bought it (years back- first generation) it didn't have a heart rate monitor but I noticed now they do? So my question is... Are they changing the watches every year just like they're changing the other Apple gadgets? Or can I still use my very old first generation Apple watch and it will still be able to update to the latest system? How good is the Apple watch overall in tracking sports in particular? Since I'm not really interested in using it for anything else.