I have an iPhone 6s and this weekend "upgraded" from my Moto 360 to an Apple Watch Sport. On my iPhone, I use Gmail and use the Gmail app for it which works perfectly and gives me instant notifications to my Moto 360 as well. I cannot figure out how to get this to work with the Apple Watch though. I suppose I can add Gmail to the stock Mail program on my iPhone, but then it only is fetch email. Does the Apple Watch not talk to Gmail? There are tons of apps that seem to be nicely integrated, but am I missing a simple key setting or something? Hangouts works as does iMessage and other notifications. But for some reason not Gmail. Thanks!